Aalatettix gibbosas
 - Aalatettix gibbosas [SYNONYM SPECIES 301819:8PWH8 nidx=null parent=8HBK]
 + Aalatettix gibbosas Zheng, Cao & Chen, 2011 [SYNONYM SPECIES 303350:CHQKS nidx=null parent=8HBK]
Acanthacris aethioptera
 - Acanthacris aethioptera [SYNONYM SPECIES 301819:8PWHN nidx=null parent=8SZ8]
 + Acanthacris aethioptera Mungai, 1987 [SYNONYM SPECIES 303350:CHR4H nidx=null parent=8SZ8]
Acanthaspis beauvoisii
 - Acanthaspis beauvoisii Fairmaire in Thomson, 1858 [SYNONYM SPECIES 301819:CGR8Q nidx=null parent=7C5TQ]
 + Acanthaspis beauvoisii Fairmaire in Thomson, 1858 [SYNONYM SPECIES 303350:CHR5C nidx=null parent=7C5TQ]
Acartia (Acartia)
 - Acartia (Acartia) [ACCEPTED SUBGENUS 301819:BS9PG nidx=null]
 + Acartia (Acartia) Dana, 1846 [ACCEPTED SUBGENUS 303350:CHRGJ nidx=null]
Aceratophallus sumucus
 - Aceratophallus sumucus Chamberlin, 1956 [ACCEPTED SPECIES 301819:64FM2 nidx=null]
 + Aceratophallus sumucus Chamberlin, 1956 [ACCEPTED SPECIES 303350:64FLP nidx=null]
Acontia (Acontia) opalinoides
 - Acontia (Acontia) opalinoides Guenée, 1852 [ACCEPTED SPECIES 301819:CGS78 nidx=null]
 + Acontia (Acontia) opalinoides Guenée, 1852 [ACCEPTED SPECIES 303350:CHS3L nidx=null]
Acontia (Emmelia) basifera
 - Acontia (Emmelia) basifera Walker, 1857 [ACCEPTED SPECIES 301819:BJGRG nidx=null]
 + Acontia (Emmelia) basifera Walker, 1857 [ACCEPTED SPECIES 303350:CHS3R nidx=null]
Acridium flavicorne
 - Acridium flavicorne [SYNONYM SPECIES 301819:8P4KP nidx=null parent=CFKNF]
 + Acridium flavicorne (Fabricius, 1787) [SYNONYM SPECIES 303350:64LRS nidx=null parent=CFKNF]
Acridium inscriptum
 - Acridium inscriptum [SYNONYM SPECIES 301819:8P4KX nidx=null parent=5L38L]
 + Acridium inscriptum (Walker, 1870) [SYNONYM SPECIES 303350:9K7J nidx=null parent=5L38L]
Acridium punctatum
 - Acridium punctatum [SYNONYM SPECIES 301819:8PWLD nidx=null parent=5FVFP]
 + Acridium punctatum (Drury, 1773) [SYNONYM SPECIES 303350:CHS7W nidx=null parent=5FVFP]
Acridium ranavaloi
 - Acridium ranavaloi [SYNONYM SPECIES 301819:8PWLG nidx=null parent=6J3BK]
 + Acridium ranavaloi (Finot, 1907) [SYNONYM SPECIES 303350:CHS7Y nidx=null parent=6J3BK]
Acrolejeunea hasskarliana
 - Acrolejeunea hasskarliana (Gottsche) Spruce ex Schiffn. [SYNONYM SPECIES 301819:9MDFS nidx=null parent=5RDFB]
 + Acrolejeunea hasskarliana (Gottsche) Spruce ex Schiffn. [SYNONYM SPECIES 303350:CHSBF nidx=null parent=5RDFB]
Acteon glans
 - †Acteon glans I. Lea, 1846 [ACCEPTED SPECIES 301819:7PTJY nidx=null]
 + Acteon glans H. C. Lea, 1845 [ACCEPTED SPECIES 303350:CHSH8 nidx=null]
Acyrthosiphon pisi
 - Acyrthosiphon pisi [AMBIGUOUS_SYNONYM SPECIES 301819:CGSV3 nidx=null parent=7GJF3]
 + Acyrthosiphon pisi [AMBIGUOUS_SYNONYM SPECIES 303350:CHSS2 nidx=null parent=7GJFD]
 + Acyrthosiphon pisi [AMBIGUOUS_SYNONYM SPECIES 303350:CHSS3 nidx=null parent=7GJF3]
Adioryx rubrum
 - Adioryx rubrum () non Forsskål, 1775 [MISAPPLIED SPECIES 301819:CGPBM nidx=null parent=79MPJ]
 + Adioryx rubrum () [MISAPPLIED SPECIES 303350:CHP6G nidx=null parent=79MPJ]
Adula soleniformis
 - Adula soleniformis (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:655B4 nidx=null]
 + Adula soleniformis (A. d'Orbigny, 1846) [ACCEPTED SPECIES 303350:CHP6W nidx=null]
Aedes (Aedes) dermajoensis
 - Aedes (Aedes) dermajoensis Brug, 1931 [SYNONYM SPECIES 301819:64VWL nidx=null parent=C2TR5]
 + Aedes (Aedes) dermajoensis Brug, 1931 [SYNONYM SPECIES 303350:87MTK nidx=null parent=C2TR5]
Aedes (Hulecoeteomyia) japonicus
 - Aedes (Hulecoeteomyia) japonicus (Theobald, 1901) [ACCEPTED SPECIES 301819:89VNY nidx=null]
 + Aedes (Hulecoeteomyia) japonicus (Theobald, 1901) [ACCEPTED SPECIES 303350:657NL nidx=null]
Aeoloplus plagosus
 - Aeoloplus plagosus [SYNONYM SPECIES 301819:8P4S2 nidx=null parent=5FF7P]
 + Aeoloplus plagosus (Scudder, 1876) [SYNONYM SPECIES 303350:659MJ nidx=null parent=5FF7P]
Agonum brunneus
 - Agonum brunneus (Letzner, 1852) unavailable name [SYNONYM SPECIES 301819:C3KB4 nidx=null parent=664T3]
 + Agonum brunneus (Letzner, 1852) [SYNONYM SPECIES 303350:CHPF6 nidx=null parent=664T3]
Agriopleura marticensis
 - †Agriopleura marticensis (A. d'Orbigny, 1847) [ACCEPTED SPECIES 301819:5TTRN nidx=null]
 + Agriopleura marticensis (A. d'Orbigny, 1850) [ACCEPTED SPECIES 303350:CHPGW nidx=null]
Agromyza aberrans
 - †Agromyza aberrans Meunier, 1905 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJBM nidx=null]
 + Agromyza aberrans Meunier, 1905 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SJJ nidx=null]
Aiolopus srtepens
 - Aiolopus srtepens [SYNONYM SPECIES 301819:8PWQJ nidx=null parent=5FGTY]
 + Aiolopus srtepens Latreille, 1804 [SYNONYM SPECIES 303350:CHPPB nidx=null parent=5FGTY]
Alectryon
 - Alectryon Melvill, 1918 [SYNONYM GENUS 301819:BDV8F nidx=null parent=7P9JP]
 + Alectryon Berthold, 1827 [SYNONYM GENUS 303350:CHQBZ nidx=null parent=7P9JP]
Alloperla pagmaensis
 - Alloperla pagmaensis [SYNONYM SPECIES 301819:8NH93 nidx=null parent=BY4R]
 + Alloperla pagmaensis Kawai, 1966 [SYNONYM SPECIES 303350:CHPBN nidx=null parent=BY4R]
Allotrichoma (Allotrichoma) pseudolaterale
 - Allotrichoma (Allotrichoma) pseudolaterale Raffone, 2001 [ACCEPTED SPECIES 301819:89XHQ nidx=null]
 + Allotrichoma (Allotrichoma) pseudolaterale Raffone, 2001 [ACCEPTED SPECIES 303350:668SY nidx=null]
Alluaudomyia (Paralluaudomyia) maculata
 - Alluaudomyia (Paralluaudomyia) maculata (Clastrier, 1960) [ACCEPTED SPECIES 301819:89XL5 nidx=null]
 + Alluaudomyia (Paralluaudomyia) maculata (Clastrier, 1960) [ACCEPTED SPECIES 303350:C29T nidx=null]
Amazilia saucerrottei warscewiczi
 - Amazilia saucerrottei warscewiczi (Cabanis & Heine, 1860) [SYNONYM SUBSPECIES 301819:CGQ6W nidx=null parent=BNZP7]
 + Amazilia saucerrottei warscewiczi (Cabanis & Heine, 1860) [SYNONYM SUBSPECIES 303350:CHQ2B nidx=null parent=BNZP7]
Amblyomma hassalli
 - Amblyomma hassalli Neumann, 1899 [SYNONYM SPECIES 301819:C65Y2 nidx=null parent=CMFS]
 + Amblyomma hassalli Marx & Neumann, 1899 [AMBIGUOUS_SYNONYM SPECIES 303350:CHQ3V nidx=null parent=CMJ2]
 + Amblyomma hassalli Neumann, 1899 [SYNONYM SPECIES 303350:CHQ3W nidx=null parent=CMFS]
Amblypneustes ovum pachistus
 - Amblypneustes ovum pachistus H.L. Clark, 1912 [SYNONYM SUBSPECIES 301819:CFDGX nidx=null parent=65ZKY]
 + Amblypneustes ovum pachistus H.L. Clark, 1912 [SYNONYM SUBSPECIES 303350:CHQ42 nidx=null parent=65ZKY]
Amblyspatha mucoris
 - Amblyspatha mucoris Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJDD nidx=null]
 + Amblyspatha mucoris Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SJM nidx=null]
Amblystegium
 - Amblystegium Schimp. [ACCEPTED GENUS 301819:9JH36 nidx=null]
 + Amblystegium Schimp. [ACCEPTED GENUS 303350:CHQ47 nidx=null]
Amidostomum acutum
 - Amidostomum acutum (Lundahl, 1848) [ACCEPTED SPECIES 301819:8RQ72 nidx=null]
 + Amidostomum acutum (Lundahl, 1848) Seurat, 1918. [ACCEPTED SPECIES 303350:CHQDC nidx=null]
Amphinemura lagnucula
 - Amphinemura lagnucula [SYNONYM SPECIES 301819:8NH9V nidx=null parent=66G6M]
 + Amphinemura lagnucula Harper, 1975 [SYNONYM SPECIES 303350:CHQSV nidx=null parent=66G6M]
Amphinemura linda
 - Amphinemura linda [SYNONYM SPECIES 301819:8MW5D nidx=null parent=D3WD]
 + Amphinemura linda (Ricker, 1952) [SYNONYM SPECIES 303350:66FTQ nidx=null parent=D3WD]
Ampullarius (Ampullarius) semitectus
 - Ampullarius (Ampullarius) semitectus (Mousson, 1873) [SYNONYM SPECIES 301819:8M3S5 nidx=null parent=7SSK7]
 + Ampullarius (Ampullarius) semitectus [SYNONYM SPECIES 303350:CHR2R nidx=null parent=7SSK7]
Ampullarius gevesensis
 - Ampullarius gevesensis (Deshayes, 1938) [SYNONYM SPECIES 301819:994CG nidx=null parent=4LQ9J]
 + Ampullarius gevesensis (Deshayes, 1838) [SYNONYM SPECIES 303350:CHR2S nidx=null parent=4LQ9J]
Amymone neapolitana
 - Amymone neapolitana Claus, 1885 [SYNONYM SPECIES 301819:66GJR nidx=null parent=5545Z]
 + Amymone neapolitana Claus, 1863 [SYNONYM SPECIES 303350:CHR4G nidx=null parent=CJHFJ]
Anacridium melanhorodon
 - Anacridium melanhorodon [SYNONYM SPECIES 301819:8PWRW nidx=null parent=5FKVC]
 + Anacridium melanhorodon Dirsh & Uvarov, 1953 [SYNONYM SPECIES 303350:CHR8K nidx=null parent=5FKVC]
Anchorella lagenula
 - Anchorella lagenula Guérin, 1817 [SYNONYM SPECIES 301819:7ZFYB nidx=null parent=7V8VM]
 + Anchorella lagenula Guérin-Méneville, 1830 [SYNONYM SPECIES 303350:CHRNZ nidx=null parent=7V8VM]
Anomalina (Pseudovalvulineria) infrasantonica
 - Anomalina (Pseudovalvulineria) infrasantonica Balakhmatova in Vasilenko & Myatlyuk, 1947 [SYNONYM SPECIES 301819:CGQVN nidx=null parent=8NFX7]
 + Anomalina (Pseudovalvulineria) infrasantonica Balakhmatova in Vasilenko & Myatlyuk, 1947 [SYNONYM SPECIES 303350:CHQRM nidx=null parent=8NFX7]
Anomalinoides sphericus
 - Anomalinoides sphericus (Finlay, 1940) [SYNONYM SPECIES 301819:BY77S nidx=null parent=BS9ZX]
 + Anomalinoides sphericus (Finlay, 1940) [SYNONYM SPECIES 303350:CHQSC nidx=null parent=BS9ZX]
Anommatoptera maculato-pennis
 - Anommatoptera maculato-pennis [SYNONYM SPECIES 301819:8P5G8 nidx=null parent=5V6D3]
 + Anommatoptera maculato-pennis (Brunner von Wattenwyl, 1895) [SYNONYM SPECIES 303350:CHQT9 nidx=null parent=5V6D3]
Anopheles (Cellia) gibbinsi
 - Anopheles (Cellia) gibbinsi Evans, 1935 [ACCEPTED SPECIES 301819:89ZBH nidx=null]
 + Anopheles (Cellia) gibbinsi Evans, 1935 [ACCEPTED SPECIES 303350:66W6T nidx=null]
Anopheles (Cellia) hatorii
 - Anopheles (Cellia) hatorii Koidzumi, 1920 [ACCEPTED SPECIES 301819:CCR2R nidx=null]
 + Anopheles (Cellia) hatorii Koidzumi, 1920 [ACCEPTED SPECIES 303350:CHQW3 nidx=null]
Anopheles (Cellia) taiwanensis
 - Anopheles (Cellia) taiwanensis Koidzumi, 1917 [ACCEPTED SPECIES 301819:CCR2X nidx=null]
 + Anopheles (Cellia) taiwanensis Koidzumi, 1917 [ACCEPTED SPECIES 303350:CHQW8 nidx=null]
Anoxia (Anoxia) asiatica
 - Anoxia (Anoxia) asiatica Desbrocher des Loges, 1871 [ACCEPTED SPECIES 301819:7ZLVP nidx=null]
 + Anoxia (Anoxia) asiatica Desbrochers des Loges, 1871 [ACCEPTED SPECIES 303350:66Y76 nidx=null]
Anoxia (Anoxia) hungarica
 - Anoxia (Anoxia) hungarica Desbrocher des Loges, 1874 [ACCEPTED SPECIES 301819:7ZLVS nidx=null]
 + Anoxia (Anoxia) hungarica Desbrochers des Loges, 1874 [ACCEPTED SPECIES 303350:679V7 nidx=null]
Anoxia derelicta
 - Anoxia derelicta Desbrocher des Loges, 1873 [SYNONYM SPECIES 301819:7ZLWF nidx=null parent=66Y72]
 + Anoxia derelicta Desbrochers des Loges, 1873 [SYNONYM SPECIES 303350:679V5 nidx=null parent=66Y72]
Anthalia nigra
 - Anthalia nigra Zetterstedt, 1842 [SYNONYM SPECIES 301819:66Z2W nidx=null parent=C2S6P]
 + Anthalia nigra Zetterstedt, 1842 [SYNONYM SPECIES 303350:926SH nidx=null parent=C2S6P]
Anthoceros punctatus var. laevis
 - Anthoceros punctatus var. laevis (L.) Hook. ex Lindenb. [SYNONYM VARIETY 301819:9TJXT nidx=null parent=4FMGR]
 + Anthoceros punctatus var. laevis (L.) Hook. ex Lindenb. [SYNONYM VARIETY 303350:CHRC5 nidx=null parent=4FMGR]
Anthomyia calceata
 - Anthomyia calceata Meigen, 1826 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJLP nidx=null]
 + Anthomyia calceata Meigen, 1826 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3PPP nidx=null]
Anthomyia cyclicans
 - Anthomyia cyclicans Pandellé, 1900 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJM3 nidx=null]
 + Anthomyia cyclicans Pandellé, 1900 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3PPQ nidx=null]
Anthrax dentoni
 - †Anthrax dentoni Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJQ6 nidx=null]
 + Anthrax dentoni Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SJV nidx=null]
Antiblemma laranda
 - Antiblemma laranda Druce, 1890 [ACCEPTED SPECIES 301819:CGRSH nidx=null]
 + Antiblemma laranda Druce [AMBIGUOUS_SYNONYM SPECIES 303350:CHRP3 nidx=null parent=5VK87]
 + Antiblemma laranda Druce, 1890 [ACCEPTED SPECIES 303350:CHRP4 nidx=null]
Antidrymaeus immaculatus
 - Antidrymaeus immaculatus (C. B. Adams, 1850) [ACCEPTED SPECIES 301819:BM2SK nidx=null]
 + Antidrymaeus immaculatus (Reeve, 1850) [ACCEPTED SPECIES 303350:CHRQC nidx=null]
Antipathes (Euantipathes) rugosa
 - Antipathes (Euantipathes) rugosa (Thomson & Simpson, 1905) [SYNONYM SPECIES 301819:CCSMF nidx=null parent=458X8]
 + Antipathes (Euantipathes) rugosa (Thomson & Simpson, 1905) [SYNONYM SPECIES 303350:CHRQN nidx=null parent=458X8]
Antroverhoeffia mirabilis
 - Antroverhoeffia mirabilis Manfredi, 1948 [SYNONYM SPECIES 301819:CGRW4 nidx=null parent=3VM3Y]
 + Antroverhoeffia mirabilis Manfredi, 1948 [SYNONYM SPECIES 303350:CHRS8 nidx=null parent=3VM3Y]
Aopodisma subaptera
 - Aopodisma subaptera [SYNONYM SPECIES 301819:BSVL8 nidx=null parent=6TQWX]
 + Aopodisma subaptera (Hebard, 1924) [SYNONYM SPECIES 303350:F68V nidx=null parent=6TQWX]
Aphanicerca terata
 - Aphanicerca terata [SYNONYM SPECIES 301819:8NGMD nidx=null parent=67LZF]
 + Aphanicerca terata Barnard, 1934 [SYNONYM SPECIES 303350:CHS2V nidx=null parent=67LZF]
Aphis (Aphis) populinigrae
 - Aphis (Aphis) populinigrae Gmelin, 1758 [ACCEPTED SPECIES 301819:BWJXT nidx=null]
 + Aphis (Aphis) populinigrae Gmelin, 1758 [ACCEPTED SPECIES 303350:CHQ77 nidx=null]
Aphis hordeï
 - Aphis hordeï [SYNONYM SPECIES 301819:C68X7 nidx=null parent=4XT9C]
 + Aphis hordeï [SYNONYM SPECIES 303350:CHQC4 nidx=null parent=4XT9C]
Apotetamenus politus
 - Apotetamenus politus [SYNONYM SPECIES 301819:8P68R nidx=null parent=FVLB]
 + Apotetamenus politus (Bruner, 1915) [SYNONYM SPECIES 303350:FVLD nidx=null parent=FVLB]
Apseudes (Apseudes) acutifrons
 - Apseudes (Apseudes) acutifrons Sars, 1882 [SYNONYM SPECIES 301819:CGR5T nidx=null parent=FY7M]
 + Apseudes (Apseudes) acutifrons Sars, 1882 [SYNONYM SPECIES 303350:CHR2X nidx=null parent=FY7M]
Arachnominus albomulatus
 - Arachnominus albomulatus [SYNONYM SPECIES 301819:8PX4X nidx=null parent=9GPV9]
 + Arachnominus albomulatus (Piza, 1960) [SYNONYM SPECIES 303350:CHR73 nidx=null parent=9GPV9]
Arca semidentata
 - Arca semidentata Deshayes, 1850 [SYNONYM SPECIES 301819:G769 nidx=null parent=6QPWC]
 + Arca semidentata Deshayes, 1839 [SYNONYM SPECIES 303350:CHRDW nidx=null parent=6QPWC]
Archaeoniscidae
 - †Archaeoniscidae Haack, 1918 [ACCEPTED FAMILY 301819:7NHCX nidx=null]
 + Archaeoniscidae von Ammon, 1882 [ACCEPTED FAMILY 303350:CHRG7 nidx=null]
Arenopontia (Arenopontia)
 - Arenopontia (Arenopontia) [SYNONYM SUBGENUS 301819:BRWQX nidx=null parent=7NPN9]
 + Arenopontia (Arenopontia) Kunz, 1937 [SYNONYM SUBGENUS 303350:CHRS4 nidx=null parent=7NPN9]
Arenopontia (Neoleptastacus)
 - Arenopontia (Neoleptastacus) [SYNONYM SUBGENUS 301819:BS9P8 nidx=null parent=7PQ3W]
 - Arenopontia (Neoleptastacus) [PROVISIONALLY_ACCEPTED SUBGENUS 301819:BS9P9 nidx=null]
 + Arenopontia (Neoleptastacus) Nicholls, 1945 [SYNONYM SUBGENUS 303350:CHRS5 nidx=null parent=7PQ3W]
 + Arenopontia (Neoleptastacus) Nicholls, 1945 [PROVISIONALLY_ACCEPTED SUBGENUS 303350:CHRS6 nidx=null]
Arenopontia (Neoleptastacus) acantha
 - Arenopontia (Neoleptastacus) acantha Chappuis, 1954 [SYNONYM SPECIES 301819:CCSPX nidx=null parent=73VZK]
 + Arenopontia (Neoleptastacus) acantha Chappuis, 1954 [SYNONYM SPECIES 303350:CHRS7 nidx=null parent=73VZK]
Arnilia chlorizans
 - Arnilia chlorizans [SYNONYM SPECIES 301819:8P6CH nidx=null parent=6ZJRR]
 + Arnilia chlorizans (Walker, 1870) [SYNONYM SPECIES 303350:GT6S nidx=null parent=6ZJRR]
Arnilia cylindrodes
 - Arnilia cylindrodes [SYNONYM SPECIES 301819:8P6CJ nidx=null parent=4ZTF2]
 + Arnilia cylindrodes (Stål, 1861) [SYNONYM SPECIES 303350:GT6V nidx=null parent=4ZTF2]
Arnilia cylindroides
 - Arnilia cylindroides [SYNONYM SPECIES 301819:9H3MK nidx=null parent=4ZTF2]
 + Arnilia cylindroides (Stål, 1861) [SYNONYM SPECIES 303350:CHS8B nidx=null parent=4ZTF2]
Arnobia philipes
 - Arnobia philipes [SYNONYM SPECIES 301819:8QHVK nidx=null parent=7JBJZ]
 + Arnobia philipes Haan, 1843 [SYNONYM SPECIES 303350:CHS8H nidx=null parent=7JBJZ]
Arsapnia arapahoe
 - Arsapnia arapahoe [SYNONYM SPECIES 301819:CCTK3 nidx=null parent=GV6Q]
 + Arsapnia arapahoe (Nelson & Kondratieff, 1988) [SYNONYM SPECIES 303350:GV6M nidx=null parent=GV6Q]
Asilus therevinus
 - Asilus therevinus Rondani, 1851 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJYN nidx=null]
 + Asilus therevinus Rondani, 1851 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3Q8L nidx=null]
Astarte grateloupi
 - †Astarte grateloupi Deshayes, 1843 [ACCEPTED SPECIES 301819:C5N3P nidx=null]
 + Astarte grateloupi Cossmann & Peyrot, 1912 [SYNONYM SPECIES 303350:CHRJV nidx=null parent=CHZB9]
Astegopteryx lithocarpi
 - Astegopteryx lithocarpi [SYNONYM SPECIES 301819:8R239 nidx=null parent=9H33M]
 + Astegopteryx lithocarpi Takahashi, 1929 [SYNONYM SPECIES 303350:CHRKM nidx=null parent=CJ7DL]
Astenus (Astenopleuritus) marginalis
 - Astenus (Astenopleuritus) marginalis Cameron, 1931 [ACCEPTED SPECIES 301819:BSW5D nidx=null]
 + Astenus (Astenopleuritus) marginalis Cameron, 1931 [ACCEPTED SPECIES 303350:9M3H6 nidx=null]
Atergatopsis signatus
 - Atergatopsis signatus (Adams & White, 1849) [SYNONYM SPECIES 301819:7S4Q3 nidx=null parent=J997]
 + Atergatopsis signatus (Adams & White, 1849) [SYNONYM SPECIES 303350:CHS76 nidx=null parent=J997]
Athyris
 - †Athyris M'Coy, 1844 [ACCEPTED GENUS 301819:BX72L nidx=null]
 + Athyris McCoy, 1844 [ACCEPTED GENUS 303350:CHSCJ nidx=null]
Atractomorpha scabra
 - Atractomorpha scabra [SYNONYM SPECIES 301819:8PX75 nidx=null parent=JJNV]
 + Atractomorpha scabra (Thunberg, 1815) [SYNONYM SPECIES 303350:JJPX nidx=null parent=JJNV]
Atrichopogon (Atrichopogon) formosanus
 - Atrichopogon (Atrichopogon) formosanus Kieffer, 1918 [ACCEPTED SPECIES 301819:JKQF nidx=null]
 + Atrichopogon (Atrichopogon) formosanus Kieffer, 1918 [ACCEPTED SPECIES 303350:9286K nidx=null]
Atrichopogon (Psammopogon) trifasciatus
 - Atrichopogon (Psammopogon) trifasciatus Kieffer, 1918 [ACCEPTED SPECIES 301819:8B5G2 nidx=null]
 + Atrichopogon (Psammopogon) trifasciatus Kieffer, 1918 [ACCEPTED SPECIES 303350:JL25 nidx=null]
Atrina (Servatrina) chinensis
 - Atrina (Servatrina) chinensis (Deshayes, 1841) [SYNONYM SPECIES 301819:JL5N nidx=null parent=JL6H]
 + Atrina (Servatrina) chinensis (Deshayes, 1844) [SYNONYM SPECIES 303350:CHSK8 nidx=null parent=CHSK9]
Atrina chinensis
 - Atrina chinensis (Deshayes, 1841) [ACCEPTED SPECIES 301819:JL6H nidx=null]
 + Atrina chinensis (Deshayes, 1844) [ACCEPTED SPECIES 303350:CHSK9 nidx=null]
Atrina pectinata
 - Atrina pectinata (Linnaeus, 1797) sensu Pennant, 1812 [SYNONYM SPECIES 301819:BSCF6 nidx=null parent=JL6L]
 + Atrina pectinata (Linnaeus, 1767) [SYNONYM SPECIES 303350:CHSKC nidx=null parent=JL6L]
Attractomorpha cranulata
 - Attractomorpha cranulata [SYNONYM SPECIES 301819:8PX77 nidx=null parent=JJNV]
 + Attractomorpha cranulata Fabricius, 1793 [SYNONYM SPECIES 303350:CHSQC nidx=null parent=JJNV]
Atys nonscripta
 - Atys nonscripta [SYNONYM SPECIES 301819:C5QJJ nidx=null parent=92TYJ]
 + Atys nonscripta (A. Adams, 1850) [SYNONYM SPECIES 303350:CHSQY nidx=null parent=92TYJ]
Aularches militaris
 - Aularches militaris [SYNONYM SPECIES 301819:8PX7D nidx=null parent=5FVFP]
 + Aularches militaris Linnaeus, 1758 [SYNONYM SPECIES 303350:CHSV4 nidx=null parent=5FVFP]
Aularches scabiosae
 - Aularches scabiosae [SYNONYM SPECIES 301819:8P6MP nidx=null parent=5FVFP]
 + Aularches scabiosae Fabricius, 1793 [SYNONYM SPECIES 303350:JRMV nidx=null parent=5FVFP]
Aulosteges
 - †Aulosteges von Helmersen, 1847 [ACCEPTED UNRANKED 301819:CGSXZ nidx=null]
 + Aulosteges von Helmersen, 1847 [ACCEPTED GENUS 303350:CHSWL nidx=null]
Austacris guttulosa cuspidata
 - Austacris guttulosa cuspidata [SYNONYM SUBSPECIES 301819:8QJZX nidx=null parent=5FVJP]
 + Austacris guttulosa cuspidata (Finot, 1907) [SYNONYM SUBSPECIES 303350:CHSXP nidx=null parent=5FVJP]
Austroperla diversipes
 - Austroperla diversipes [SYNONYM SPECIES 301819:8MX3Q nidx=null parent=54YPV]
 + Austroperla diversipes (Westwood, 1840) [SYNONYM SPECIES 303350:CHR6Y nidx=null parent=54YPV]
Aversovalva aureum
 - Aversovalva aureum Hornibrook, 1952 [ACCEPTED SPECIES 301819:CFFVG nidx=null]
 + Aversovalva aureum Hornibrook, 1952 [ACCEPTED SPECIES 303350:CHRCP nidx=null]
Bactrocera (Bactrocera) ritsemae
 - Bactrocera (Bactrocera) ritsemae (Weyenbergh, 1869) [ACCEPTED SPECIES 301819:5VZFY nidx=null]
 + Bactrocera (Bactrocera) ritsemae (Weyenbergh, 1869) [ACCEPTED SPECIES 303350:929BD nidx=null]
Bactrocera (Paratridacus) unichromata
 - Bactrocera (Paratridacus) unichromata Drew, 1989 [SYNONYM SPECIES 301819:92967 nidx=null parent=C2TKB]
 + Bactrocera (Paratridacus) unichromata Drew, 1989 [SYNONYM SPECIES 303350:87RKR nidx=null parent=C2TKB]
Barbitistes oczkayi
 - Barbitistes oczkayi [SYNONYM SPECIES 301819:8PX86 nidx=null parent=KMJD]
 + Barbitistes oczkayi Charpentier, 1850 [SYNONYM SPECIES 303350:CHYT9 nidx=null parent=KMJD]
Barbitistes oskayi
 - Barbitistes oskayi [SYNONYM SPECIES 301819:8PX87 nidx=null parent=KMJD]
 + Barbitistes oskayi Charpentier, 1850 [SYNONYM SPECIES 303350:CHYTB nidx=null parent=KMJD]
Barbula acuta subsp. icmadophila
 - Barbula acuta subsp. icmadophila (Schimp. ex Müll. Hal.) J.J. Amann [SYNONYM SUBSPECIES 301819:9ND5R nidx=null parent=9LB24]
 + Barbula acuta subsp. icmadophila (Schimp. ex Müll. Hal.) Podp. [SYNONYM SUBSPECIES 303350:CHYTC nidx=null parent=9LB24]
Barbula baileyi
 - Barbula baileyi (Broth.) Paris [SYNONYM SPECIES 301819:9RP7X nidx=null parent=9KWPR]
 + Barbula baileyi (Broth.) Kindb. [SYNONYM SPECIES 303350:CHYTF nidx=null parent=9KWPR]
Barbula cordata
 - Barbula cordata (Jur.) Loeske [SYNONYM SPECIES 301819:9MGQ8 nidx=null parent=35YTV]
 + Barbula cordata (Jur.) Braithw. [SYNONYM SPECIES 303350:CHYTH nidx=null parent=35YTV]
Barbula desertorum
 - Barbula desertorum (Broth.) Paris [SYNONYM SPECIES 301819:9RPCY nidx=null parent=53ZQ9]
 + Barbula desertorum (Broth.) Kindb. [SYNONYM SPECIES 303350:CHYTK nidx=null parent=53ZQ9]
Barbula duriuscula
 - Barbula duriuscula (Mitt.) A. Jaeger [SYNONYM SPECIES 301819:9RPDG nidx=null parent=9L73J]
 + Barbula duriuscula (Mitt.) Müll. Hal. [SYNONYM SPECIES 303350:CHYTM nidx=null parent=9L73J]
Barbula glacialis
 - Barbula glacialis Kunze ex Müll. Hal. [SYNONYM SPECIES 301819:9RPGN nidx=null parent=BVXJZ]
 + Barbula glacialis Kunze ex Müll. Hal. [SYNONYM SPECIES 303350:CHYTP nidx=null parent=BVXJZ]
Barbula parramattana
 - Barbula parramattana (Mitt.) Paris [SYNONYM SPECIES 301819:9RPP9 nidx=null parent=4NV83]
 + Barbula parramattana (Mitt.) Kindb. [SYNONYM SPECIES 303350:CHYTV nidx=null parent=4NV83]
Barbula raddei
 - Barbula raddei (Broth.) Paris [SYNONYM SPECIES 301819:9RPQT nidx=null parent=42S46]
 + Barbula raddei (Broth.) Kindb. [SYNONYM SPECIES 303350:CHYTW nidx=null parent=42S46]
Barbula rubella
 - Barbula rubella (Huebener) Mitt. ex Lindb. [AMBIGUOUS_SYNONYM SPECIES 301819:BKQ55 nidx=null parent=9JXBC]
 + Barbula rubella Mitt. ex Lindb. [AMBIGUOUS_SYNONYM SPECIES 303350:9RPRT nidx=null parent=9JXBC]
Barbula rubiginosa subsp. subicmadophila
 - Barbula rubiginosa subsp. subicmadophila (Müll. Hal. & Kindb.) Broth. [SYNONYM SUBSPECIES 301819:9W49H nidx=null parent=9MV3T]
 + Barbula rubiginosa subsp. subicmadophila (Müll. Hal. & Kindb.) Kindb. [SYNONYM SUBSPECIES 303350:CHYTX nidx=null parent=9MV3T]
Barbula tophacea var. acutifolia
 - Barbula tophacea var. acutifolia (Schimp.) Braithw. [SYNONYM VARIETY 301819:9VDH7 nidx=null parent=9LG9G]
 + Barbula tophacea var. acutifolia Dixon [SYNONYM VARIETY 303350:CHYTZ nidx=null parent=9LG9G]
Barbula vinealis subsp. cylindrica
 - Barbula vinealis subsp. cylindrica (Taylor) Podp. [SYNONYM SUBSPECIES 301819:9ND68 nidx=null parent=9MV3Q]
 + Barbula vinealis subsp. cylindrica (Taylor) Bouvet [SYNONYM SUBSPECIES 303350:CHYV3 nidx=null parent=9MV3Q]
Bartramia fontana var. falcata
 - Bartramia fontana var. falcata (Hook.) Bruch & Schimp. [SYNONYM VARIETY 301819:9VCBN nidx=null parent=4G9GB]
 + Bartramia fontana var. falcata (Hook.) Bréb. [SYNONYM VARIETY 303350:CHZ49 nidx=null parent=4G9GB]
Barytettix contilus discranatus
 - Barytettix contilus discranatus [SYNONYM SUBSPECIES 301819:8Q668 nidx=null parent=5FWX2]
 + Barytettix contilus discranatus Cohn & Cantrall, 1974 [SYNONYM SUBSPECIES 303350:CHRQG nidx=null parent=5FWX2]
Begonia plebeja var. kennedyi
 - Begonia plebeja var. kennedyi Ziesenh. [SYNONYM VARIETY 301819:7YMMB nidx=null parent=7SGZH]
 + Begonia plebeja var. kennedyi Ziesenh. [SYNONYM VARIETY 303350:5MJNN nidx=null parent=7SGZH]
Bela atticae
 - Bela atticae H. Nordsieck, 1977 [ACCEPTED SPECIES 301819:CCT92 nidx=null]
 + Bela atticae F. Nordsieck, 1977 [ACCEPTED SPECIES 303350:CHS4Y nidx=null]
Bela ornata atticae
 - Bela ornata atticae H. Nordsieck, 1977 [SYNONYM SUBSPECIES 301819:CCT97 nidx=null parent=CCT92]
 + Bela ornata atticae F. Nordsieck, 1977 [SYNONYM SUBSPECIES 303350:CHS54 nidx=null parent=CHS4Y]
Belaxellus elegans
 - Belaxellus elegans Thorne, 1974 [PROVISIONALLY_ACCEPTED GENUS 301819:8QBF4 nidx=null]
 + Belaxellus elegans Thorne, 1974 [ACCEPTED SPECIES 303350:CHS59 nidx=null]
Bertea subaptera
 - Bertea subaptera Rondani, 1856 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JKDP nidx=null]
 + Bertea subaptera Rondani, 1856 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SLJ nidx=null]
Bibulus brunni
 - Bibulus brunni [SYNONYM SPECIES 301819:8PX94 nidx=null parent=3L6Y4]
 + Bibulus brunni (Giglio-Tos, 1907) [SYNONYM SPECIES 303350:CHSSX nidx=null parent=3L6Y4]
Bireta (Besaia) dives
 - Bireta (Besaia) dives Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPP nidx=null parent=92WQJ]
 + Bireta (Besaia) dives Kiriakoff, 1962 [SYNONYM SPECIES 303350:963PC nidx=null parent=92WQJ]
Bireta (Besaia) yunnana
 - Bireta (Besaia) yunnana Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPY nidx=null parent=92WQS]
 + Bireta (Besaia) yunnana Kiriakoff, 1962 [SYNONYM SPECIES 303350:963PP nidx=null parent=92WQS]
Bireta (Norraca) postfusca
 - Bireta (Norraca) postfusca Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPS nidx=null parent=988P9]
 + Bireta (Norraca) postfusca Kiriakoff, 1962 [SYNONYM SPECIES 303350:963PH nidx=null parent=988P9]
Bireta (Norracana) niveipicta
 - Bireta (Norracana) niveipicta Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPR nidx=null parent=988NV]
 + Bireta (Norracana) niveipicta Kiriakoff, 1962 [SYNONYM SPECIES 303350:963PF nidx=null parent=988NV]
Bireta (Oraura) aurora
 - Bireta (Oraura) aurora Kiriakoff, 1962 [SYNONYM SPECIES 301819:963PB nidx=null parent=C392F]
 + Bireta (Oraura) aurora Kiriakoff, 1962 [SYNONYM SPECIES 303350:BPPPN nidx=null parent=C392F]
Blepharidophyllaceae
 - Blepharidophyllaceae R.M. Schust. [ACCEPTED FAMILY 301819:9JFZ4 nidx=null]
 + Blepharidophyllaceae R.M. Schust. [ACCEPTED FAMILY 303350:CHTDD nidx=null]
Bolitophila pulveris
 - †Bolitophila pulveris Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JKJZ nidx=null]
 + Bolitophila pulveris Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SLL nidx=null]
Bolivaritettix luteolineolata
 - Bolivaritettix luteolineolata [SYNONYM SPECIES 301819:8PX9Y nidx=null parent=5WMHB]
 + Bolivaritettix luteolineolata Zheng, 2003 [SYNONYM SPECIES 303350:CHTPY nidx=null parent=5WMHB]
Bombyx (Pania) phantoma
 - Bombyx (Pania) phantoma Dalman, 1823 [SYNONYM SPECIES 301819:BPPRW nidx=null parent=5GCMT]
 + Bombyx (Pania) phantoma Dalman, 1823 [SYNONYM SPECIES 303350:964Q3 nidx=null parent=5GCMT]
Bornia barbadensis
 - Bornia barbadensis Dall, 1889 [SYNONYM SPECIES 301819:MKL9 nidx=null parent=4Y5DF]
 + Bornia barbadensis Dall, 1899 [SYNONYM SPECIES 303350:CHTVL nidx=null parent=4Y5DF]
Brachidontes darwinianus
 - Brachidontes darwinianus (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:MSRZ nidx=null]
 + Brachidontes darwinianus (A. d'Orbigny, 1846) [ACCEPTED SPECIES 303350:CHSGN nidx=null]
Brachidontes solisianus
 - Brachidontes solisianus (A. d'Orbigny, 1842) [SYNONYM SPECIES 301819:MSSZ nidx=null parent=45GCV]
 + Brachidontes solisianus (A. d'Orbigny, 1846) [SYNONYM SPECIES 303350:CHSGR nidx=null parent=CJ9PK]
Brachycaudus (Appelia) prunicola
 - Brachycaudus (Appelia) prunicola (Kaltenbach, 1843) [ACCEPTED SPECIES 301819:6929D nidx=null]
 + Brachycaudus (Appelia) prunicola (Kaltenbach, 1843) [ACCEPTED SPECIES 303350:CHSJS nidx=null]
Brachydistomum microscelis
 - Brachydistomum microscelis (Yamaguti, 1933) Travasos, 1933 [ACCEPTED SPECIES 301819:BXS3Y nidx=null]
 + Brachydistomum microscelis (Yamaguti, 1933) Travassos, 1944 [ACCEPTED SPECIES 303350:CHSLJ nidx=null]
Brachylecithum burjatmongolicum
 - Brachylecithum burjatmongolicum Oshmarin, 1947 [ACCEPTED SPECIES 301819:C2CLD nidx=null]
 + Brachylecithum burjatmongolicum Oshmarin in Skrjabin & Evranova, 1952 [ACCEPTED SPECIES 303350:CHSM5 nidx=null]
Brachylecithum eugenia
 - Brachylecithum eugenia Oshmarin, 1947 [ACCEPTED SPECIES 301819:C2CLG nidx=null]
 + Brachylecithum eugenia Oshmarin in Skrjabin & Evranova, 1952 [ACCEPTED SPECIES 303350:CHSM9 nidx=null]
Brachylecithum magnitestium
 - Brachylecithum magnitestium (Layman, 1926) [ACCEPTED SPECIES 301819:C2CLP nidx=null]
 + Brachylecithum magnitestium (Layman, 1922) Shtrom, 1940 [ACCEPTED SPECIES 303350:CHSMV nidx=null]
Brachymenium longipedicellatum
 - Brachymenium longipedicellatum (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RQQX nidx=null parent=4KWKJ]
 + Brachymenium longipedicellatum (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSQ3 nidx=null parent=4KWKJ]
Brachymenium macropoma
 - Brachymenium macropoma (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RQR4 nidx=null parent=64J6G]
 + Brachymenium macropoma (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSQ4 nidx=null parent=64J6G]
Brachymenium molleri
 - Brachymenium molleri (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RQRJ nidx=null parent=MX98]
 + Brachymenium molleri (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSQ5 nidx=null parent=MX98]
Brachymenium scabridens
 - Brachymenium scabridens (Mitt.) Broth. [SYNONYM SPECIES 301819:9RQSF nidx=null parent=9KNQN]
 + Brachymenium scabridens (Mitt.) Kindb. [SYNONYM SPECIES 303350:CHSQ6 nidx=null parent=9KNQN]
Brachythecium calerae
 - Brachythecium calerae (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RQXJ nidx=null parent=N32N]
 + Brachythecium calerae (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSV6 nidx=null parent=N32N]
Brachythecium donnellii
 - Brachythecium donnellii (Austin) Renauld & Cardot [SYNONYM SPECIES 301819:9RQYP nidx=null parent=39YV7]
 + Brachythecium donnellii (Austin) Kindb. [SYNONYM SPECIES 303350:CHSV8 nidx=null parent=39YV7]
Brachythecium euryodictyon
 - Brachythecium euryodictyon (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RQYX nidx=null parent=9JX5H]
 + Brachythecium euryodictyon (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSV9 nidx=null parent=9JX5H]
Brachythecium fitzgeraldii
 - Brachythecium fitzgeraldii Renauld & Cardot [SYNONYM SPECIES 301819:9RQZ6 nidx=null parent=N2VY]
 + Brachythecium fitzgeraldii Kindb. [SYNONYM SPECIES 303350:CHSVB nidx=null parent=N2VY]
Brachythecium georgicoglareosum
 - Brachythecium georgicoglareosum (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RQZH nidx=null parent=9JX5H]
 + Brachythecium georgicoglareosum (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSVD nidx=null parent=9JX5H]
Brachythecium gloriosum
 - Brachythecium gloriosum (Müll. Hal.) Paris [ACCEPTED SPECIES 301819:N2Y2 nidx=null]
 + Brachythecium gloriosum (Müll. Hal.) Kindb. [ACCEPTED SPECIES 303350:CHSVF nidx=null]
Brachythecium jeniseense
 - Brachythecium jeniseense (Lindb. & Arnell) Paris [SYNONYM SPECIES 301819:9RR29 nidx=null parent=9MJKM]
 + Brachythecium jeniseense (Lindb. & Arnell) Kindb. [SYNONYM SPECIES 303350:CHSVG nidx=null parent=9MJKM]
Brachythecium krausei
 - Brachythecium krausei (Macoun & Kindb.) Paris [SYNONYM SPECIES 301819:N2YH nidx=null parent=3NBKB]
 + Brachythecium krausei Kindb. [SYNONYM SPECIES 303350:CHSVH nidx=null parent=3NBKB]
Brachythecium lepidopiloides
 - Brachythecium lepidopiloides (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RR2V nidx=null parent=6ZRBW]
 + Brachythecium lepidopiloides (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSVJ nidx=null parent=6ZRBW]
Brachythecium longidens
 - Brachythecium longidens (Müll. Hal.) Paris [ACCEPTED SPECIES 301819:N2YW nidx=null]
 + Brachythecium longidens (Müll. Hal.) Kindb. [ACCEPTED SPECIES 303350:CHSVK nidx=null]
Brachythecium macroconum
 - Brachythecium macroconum (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RR37 nidx=null parent=9MJKH]
 + Brachythecium macroconum (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSVL nidx=null parent=9MJKH]
Brachythecium nematogonium
 - Brachythecium nematogonium (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RR3Y nidx=null parent=N32N]
 + Brachythecium nematogonium (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSVM nidx=null parent=N32N]
Brachythecium sericeovirens
 - Brachythecium sericeovirens (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RR66 nidx=null parent=9JX5G]
 + Brachythecium sericeovirens (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSVN nidx=null parent=9JX5G]
Brachythecium spegazzinii
 - Brachythecium spegazzinii (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RR6D nidx=null parent=9KCG7]
 + Brachythecium spegazzinii (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSVP nidx=null parent=9KCG7]
Brachythecium squalidissimum
 - Brachythecium squalidissimum (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RR6K nidx=null parent=N32N]
 + Brachythecium squalidissimum (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHSVQ nidx=null parent=N32N]
Brada brevis
 - Brada brevis Hartman, 1967 [ACCEPTED SPECIES 301819:N4JK nidx=null]
 + Brada brevis Hartman, 1965 [SYNONYM SPECIES 303350:CHSWT nidx=null parent=CJ694]
Bradleya multicostata
 - Bradleya multicostata Ruan in Ruan & Hao (Yi-Chun), 1988 [ACCEPTED SPECIES 301819:N4SR nidx=null]
 + Bradleya multicostata (Yi-Chun), 1988 [ACCEPTED SPECIES 303350:CHSWY nidx=null]
Bradyporus cinctus
 - Bradyporus cinctus [SYNONYM SPECIES 301819:8P74J nidx=null parent=34V56]
 + Bradyporus cinctus (Fischer von Waldheim, 1833) [SYNONYM SPECIES 303350:N5CX nidx=null parent=34V56]
Bradyporus marginatus
 - Bradyporus marginatus [SYNONYM SPECIES 301819:BSWLJ nidx=null parent=49J45]
 + Bradyporus marginatus (Fabricius, 1798) [SYNONYM SPECIES 303350:N5D5 nidx=null parent=49J45]
Breutelia austroarcuata
 - Breutelia austroarcuata (Müll. Hal.) Paris [ACCEPTED SPECIES 301819:N9FX nidx=null]
 + Breutelia austroarcuata (Müll. Hal.) Kindb. [ACCEPTED SPECIES 303350:CHT5F nidx=null]
Breutelia cuspidatissima
 - Breutelia cuspidatissima (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RRB4 nidx=null parent=N9HM]
 + Breutelia cuspidatissima (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHT5H nidx=null parent=N9HM]
Breutelia grandis
 - Breutelia grandis (Hampe) Paris [ACCEPTED SPECIES 301819:N9GM nidx=null]
 + Breutelia grandis (Hampe) Kindb. [ACCEPTED SPECIES 303350:CHT5J nidx=null]
Breutelia kilimandscharica
 - Breutelia kilimandscharica (Müll. Hal.) Paris [ACCEPTED SPECIES 301819:N9GX nidx=null]
 + Breutelia kilimandscharica (Müll. Hal.) Kindb. [ACCEPTED SPECIES 303350:CHT5K nidx=null]
Breutelia lorentzii
 - Breutelia lorentzii (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RRBV nidx=null parent=N9HM]
 + Breutelia lorentzii (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHT5L nidx=null parent=N9HM]
Breutelia subgnaphalea
 - Breutelia subgnaphalea (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9RRCL nidx=null parent=N9GC]
 + Breutelia subgnaphalea (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHT5N nidx=null parent=N9GC]
Brocchinia depressiplicata
 - †Brocchinia depressiplicata Sacco, 1894 [ACCEPTED SPECIES 301819:8H9T9 nidx=null]
 + Brocchinia depressiplicata [SYNONYM SPECIES 303350:CHTCZ nidx=null parent=CJMR4]
Bruchia drummondii
 - Bruchia drummondii Hampe ex E. Britton [ACCEPTED SPECIES 301819:5X4NY nidx=null]
 + Bruchia drummondii Hampe ex E. Britton [ACCEPTED SPECIES 303350:CHTHH nidx=null]
Bruchia vogesiaca
 - Bruchia vogesiaca Nestl. ex Schwägr. [ACCEPTED SPECIES 301819:5X4NH nidx=null]
 + Bruchia vogesiaca Nestl. ex Schwägr. [ACCEPTED SPECIES 303350:CHTHJ nidx=null]
Bryocamptus (Rheocamptus) brevipes
 - Bryocamptus (Rheocamptus) brevipes Borutzky, 1948 [ACCEPTED SPECIES 301819:NHQ2 nidx=null]
 + Bryocamptus (Rheocamptus) brevipes Borutzky, 1952 [ACCEPTED SPECIES 303350:CHTKR nidx=null]
Bryopsida
 - Bryopsida McClatchie [ACCEPTED CLASS 301819:8K nidx=null]
 + Bryopsida Ritgen [ACCEPTED CLASS 303350:CHTLN nidx=null]
Bryum aeneum
 - Bryum aeneum Blytt ex Bruch & Schimp. [SYNONYM SPECIES 301819:9MGZJ nidx=null parent=9MC6H]
 + Bryum aeneum Blytt ex Bruch & Schimp. [SYNONYM SPECIES 303350:CHTM2 nidx=null parent=9MC6H]
Bryum quitense
 - Bryum quitense (Schimp.) Paris [SYNONYM SPECIES 301819:9RSW8 nidx=null parent=676DZ]
 + Bryum quitense (Schimp.) Kindb. [SYNONYM SPECIES 303350:CHTPZ nidx=null parent=676DZ]
Buccinum (Nassa) hotessieri
 - Buccinum (Nassa) hotessieri A. d'Orbigny, 1847 [SYNONYM SPECIES 301819:BGZ9Y nidx=null parent=4GV8J]
 + Buccinum (Nassa) hotessieri (A. d'Orbigny, 1844) [SYNONYM SPECIES 303350:CHTRL nidx=null parent=CJC6X]
Bufonaria crumenoides
 - Bufonaria crumenoides (Blainville, 1832) [SYNONYM SPECIES 301819:NPJ6 nidx=null parent=NPJ5]
 + Bufonaria crumenoides (Valenciennes, 1832) [SYNONYM SPECIES 303350:CHTTL nidx=null parent=NPJ5]
Bulimina subgen. Bolivina
 - Bulimina subgen. Bolivina d'Orbigny, 1839 [PROVISIONALLY_ACCEPTED SUBGENUS 301819:C4PZL nidx=null]
 + Bulimina subgen. Bolivina d'Orbigny, 1839 [PROVISIONALLY_ACCEPTED SUBGENUS 303350:CHTQ4 nidx=null]
Buliminus derivatus
 - Buliminus derivatus Deshayes, 1874 [SYNONYM SPECIES 301819:7QFH4 nidx=null parent=7S5Y7]
 + Buliminus derivatus Deshayes, 1876 [SYNONYM SPECIES 303350:CHTYS nidx=null parent=CJ9FY]
Buliminus kirkii
 - Buliminus kirkii Dohrn, 1865 [SYNONYM SPECIES 301819:7QFJM nidx=null parent=6NJGY]
 + Buliminus kirkii Dohrn, 1865 [SYNONYM SPECIES 303350:NSZT nidx=null parent=6NJGY]
Bulimulus immaculatus
 - Bulimulus immaculatus (C. B. Adams, 1850) [SYNONYM SPECIES 301819:8GQSJ nidx=null parent=BM2SK]
 + Bulimulus immaculatus (Reeve, 1850) [SYNONYM SPECIES 303350:CHTZH nidx=null parent=CHRQC]
Bulimus immaculatus
 - Bulimus immaculatus C. B. Adams, 1850 [SYNONYM SPECIES 301819:7QGGF nidx=null parent=BM2SK]
 + Bulimus immaculatus Reeve, 1850 [SYNONYM SPECIES 303350:CHV2H nidx=null parent=CHRQC]
Cadulus striatus
 - Cadulus striatus Pilsbry & Sharp, 1898 [SYNONYM SPECIES 301819:P7LN nidx=null parent=6K6L7]
 + Cadulus striatus Dall, 1898 [SYNONYM SPECIES 303350:CHVKX nidx=null parent=CJ3B4]
Calanus dorsalis
 - Calanus dorsalis (Rafinesque, 1815) [ACCEPTED SPECIES 301819:PFLZ nidx=null]
 + Calanus dorsalis (Rafinesque, 1817) [SYNONYM SPECIES 303350:CHT25 nidx=null parent=PFM4]
Calanus sinicus
 - Calanus sinicus Brodsky, 1962 [ACCEPTED SPECIES 301819:5X6CV nidx=null]
 + Calanus sinicus Brodsky, 1965 [ACCEPTED SPECIES 303350:CHT26 nidx=null]
Caligeria
 - Caligeria Dana, 1852-1853 [SYNONYM GENUS 301819:BG8W5 nidx=null parent=7NZS9]
 + Caligeria Dana, 1849-1852 [SYNONYM GENUS 303350:CHT6Z nidx=null parent=7NZS9]
Caligus thymni
 - Caligus thymni Dana, 1849-1852 [SYNONYM SPECIES 301819:CFJCD nidx=null parent=PKB7]
 + Caligus thymni Dana, 1853-1855 [SYNONYM SPECIES 303350:PKL6 nidx=null parent=PKB7]
Calliphora (Calliphora) rohdendorfi
 - Calliphora (Calliphora) rohdendorfi Grunin, 1970 [ACCEPTED SPECIES 301819:92H8Q nidx=null]
 + Calliphora (Calliphora) rohdendorfi Grunin, 1970 [ACCEPTED SPECIES 303350:PSGZ nidx=null]
Calliptamus palaestinensis erythrocnemis
 - Calliptamus palaestinensis erythrocnemis [SYNONYM SUBSPECIES 301819:BV6X7 nidx=null parent=5G4S7]
 + Calliptamus palaestinensis erythrocnemis Ramme, 1951 [SYNONYM SUBSPECIES 303350:CHTHK nidx=null parent=5G4S7]
Callobata brasiliana
 - Callobata brasiliana Rondani, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JLNS nidx=null]
 + Callobata brasiliana Rondani, 1863 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SMX nidx=null]
Callorhynchus antarcticus
 - Callorhynchus antarcticus Fleming, 1822 [SYNONYM SPECIES 301819:C6K35 nidx=null parent=PVZB]
 + Callorhynchus antarcticus Fleming, 1822 [SYNONYM SPECIES 303350:CHTLQ nidx=null parent=PVZB]
 + Callorhynchus antarcticus () [MISAPPLIED SPECIES 303350:CHTLR nidx=null parent=PVZD]
Caloptenopsis angusticeps
 - Caloptenopsis angusticeps [SYNONYM SPECIES 301819:8P7BV nidx=null parent=5FDNS]
 + Caloptenopsis angusticeps (Bolívar, 1889) [SYNONYM SPECIES 303350:Q2DF nidx=null parent=5FDNS]
Caloptenopsis calcaratus
 - Caloptenopsis calcaratus [SYNONYM SPECIES 301819:8P7BY nidx=null parent=5FDNG]
 + Caloptenopsis calcaratus (Stål, 1876) [SYNONYM SPECIES 303350:Q2DM nidx=null parent=5FDNG]
Calverocheres engeli
 - Calverocheres engeli Stock, 1971 [ACCEPTED SPECIES 301819:Q4ZH nidx=null]
 + Calverocheres engeli Stock, 1968 [ACCEPTED SPECIES 303350:CHTVN nidx=null]
Calymperes aeruginosum
 - Calymperes aeruginosum Hampe ex Sande Lac. [ACCEPTED SPECIES 301819:5X8X7 nidx=null]
 + Calymperes aeruginosum Hampe ex Sande Lac. [ACCEPTED SPECIES 303350:CHTWD nidx=null]
Calyptoblastina
 - Calyptoblastina Allman, 1871 [SYNONYM SUBORDER 301819:CFK95 nidx=null parent=8ZXH6]
 + Calyptoblastina Allman, 1871 [SYNONYM ORDER 303350:CHTWY nidx=null parent=8ZXH6]
Cambalopsis calvus
 - Cambalopsis calvus (Pocock, 1893) [SYNONYM SPECIES 301819:CFKJS nidx=null parent=57R9Y]
 + Cambalopsis calvus (Pocock, 1893) [SYNONYM SPECIES 303350:CHV5J nidx=null parent=57R9Y]
Camptochaete schlosseri
 - Camptochaete schlosseri (Sendtn.) Broth. ex Paris [SYNONYM SPECIES 301819:9RV48 nidx=null parent=QFCG]
 + Camptochaete schlosseri (Sendtn. ex Müll. Hal.) Broth. ex Paris [SYNONYM SPECIES 303350:CHVBP nidx=null parent=QFCG]
Camptotriletes
 - †Camptotriletes S.N. Naumova ex R. Potonié & Kremp [ACCEPTED GENUS 301819:9TV34 nidx=null]
 + Camptotriletes S.N. Naumova ex R. Potonié & Kremp [ACCEPTED GENUS 303350:CHVCN nidx=null]
Campylopus chlorotrichus
 - Campylopus chlorotrichus (Müll. Hal.) Melvill [SYNONYM SPECIES 301819:9RVD6 nidx=null parent=QHR7]
 + Campylopus chlorotrichus (Müll. Hal.) Paris [SYNONYM SPECIES 303350:CHVFM nidx=null parent=QHR7]
Campylopus fuscoviridis
 - Campylopus fuscoviridis (Cardot) Dixon & Thér. ex W.S. Hong & Ando [SYNONYM SPECIES 301819:9RVHX nidx=null parent=QHKG]
 + Campylopus fuscoviridis (Cardot) Dixon & Thér. ex W.S. Hong & Ando [SYNONYM SPECIES 303350:CHVFP nidx=null parent=QHKG]
Campylopus hoehnelii
 - Campylopus hoehnelii (Müll. Hal.) Broth. [SYNONYM SPECIES 301819:9RVK4 nidx=null parent=QHPF]
 + Campylopus hoehnelii (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CHVFQ nidx=null parent=QHPF]
Campylopus incrassatus
 - Campylopus incrassatus Kunze ex Müll. Hal. [ACCEPTED SPECIES 301819:9JYB2 nidx=null]
 + Campylopus incrassatus Kunze ex Müll. Hal. [ACCEPTED SPECIES 303350:CHVFR nidx=null]
Campylopus laxoventralis
 - Campylopus laxoventralis Herzog ex J.-P. Frahm [ACCEPTED SPECIES 301819:QHNH nidx=null]
 + Campylopus laxoventralis Herzog ex J.-P. Frahm [ACCEPTED SPECIES 303350:CHVFS nidx=null]
Campylopus luetzelburgii
 - Campylopus luetzelburgii Herzog ex J.-P. Frahm [SYNONYM SPECIES 301819:QHNK nidx=null parent=9N385]
 + Campylopus luetzelburgii Herzog ex J.-P. Frahm [SYNONYM SPECIES 303350:CHVFT nidx=null parent=9N385]
Cancellaria constifera
 - Cancellaria constifera G. B. Sowerby I, 1832 [SYNONYM SPECIES 301819:QJZY nidx=null parent=9GJX2]
 + Cancellaria constifera [SYNONYM SPECIES 303350:CHVJW nidx=null parent=9GJX2]
Cancellaria laurensii
 - Cancellaria laurensii Grateloup, 1845 [SYNONYM SPECIES 301819:QK3B nidx=null parent=Y8GJ]
 + Cancellaria laurensii Grateloup, 1832 [SYNONYM SPECIES 303350:CHVK6 nidx=null parent=CHWXZ]
Canthocamptus salinus
 - Canthocamptus salinus Labbé, 1924 [ACCEPTED SPECIES 301819:CCZDF nidx=null]
 + Canthocamptus salinus Labbé, 1927 [ACCEPTED SPECIES 303350:CHVYQ nidx=null]
Canthocamptus stroemii
 - Canthocamptus stroemii (Baird, 1850) [SYNONYM SPECIES 301819:QP47 nidx=null parent=7XDG3]
 + Canthocamptus stroemii (Baird, 1837) [SYNONYM SPECIES 303350:CHVYR nidx=null parent=7XDG3]
Capillaria murissylvatici
 - Capillaria murissylvatici [SYNONYM SPECIES 301819:C2XPN nidx=null parent=C2C9S]
 + Capillaria murissylvatici (Diesing, 1851) [SYNONYM SPECIES 303350:CHW24 nidx=null parent=C2C9S]
Capnia arensis
 - Capnia arensis [SYNONYM SPECIES 301819:8NH4V nidx=null parent=QQP5]
 + Capnia arensis Zhiltzova, 1964 [SYNONYM SPECIES 303350:CHW2L nidx=null parent=QQP5]
Capnogryllacris nigromarginata
 - Capnogryllacris nigromarginata (Karny, 1928) [ACCEPTED SPECIES 301819:8P7GR nidx=null]
 + Capnogryllacris nigromarginata (Karny, 1928) [SYNONYM SPECIES 303350:QR99 nidx=null parent=CJP6M]
Capulus galeus
 - Capulus galeus [SYNONYM SPECIES 301819:C54W2 nidx=null parent=3MX62]
 + Capulus galeus Dall, 1889 [SYNONYM SPECIES 303350:CHW3X nidx=null parent=3MX62]
Carcelia (Senometopia) aurifrons
 - Carcelia (Senometopia) aurifrons Robineau-Desvoidy, 1830 [ACCEPTED SPECIES 301819:C3T85 nidx=null]
 + Carcelia (Senometopia) aurifrons Robineau-Desvoidy, 1830 [ACCEPTED SPECIES 303350:CHT2F nidx=null]
Cardium sueziensis
 - Cardium sueziensis [SYNONYM SPECIES 301819:C55ZN nidx=null parent=6JLLH]
 + Cardium sueziensis Issel, 1869 [SYNONYM SPECIES 303350:CHT7T nidx=null parent=6JLLH]
Carocolla
 - Carocolla [SYNONYM GENUS 301819:C5738 nidx=null parent=7NRVB]
 + Carocolla Albers, 1850 [SYNONYM GENUS 303350:CHTQ5 nidx=null parent=7NRVB]
Castrada (Castrada) hofmanni
 - Castrada (Castrada) hofmanni Braun, 1885 [ACCEPTED SPECIES 301819:5XF3V nidx=null]
 + Castrada (Castrada) hofmanni Braun, 1885 [ACCEPTED SPECIES 303350:RQSY nidx=null]
Catharodesmus dorbignyi
 - Catharodesmus dorbignyi (Brölemann, 1900) [SYNONYM SPECIES 301819:CFKN6 nidx=null parent=9CB74]
 + Catharodesmus dorbignyi (Brölemann, 1900) [SYNONYM SPECIES 303350:CHV7B nidx=null parent=9CB74]
Cathymorula sismondai
 - †Cathymorula sismondai (Doderlein, 1862) [ACCEPTED SPECIES 301819:86YLZ nidx=null]
 + Cathymorula sismondai (Doderlein, 1864) [ACCEPTED SPECIES 303350:CHV7J nidx=null]
Cephalozia hibernica
 - Cephalozia hibernica Spruce ex Pearson [SYNONYM SPECIES 301819:9MJTN nidx=null parent=6K4HK]
 + Cephalozia hibernica Spruce ex Pearson [SYNONYM SPECIES 303350:CHWL6 nidx=null parent=6K4HK]
Ceratopogon succinctus
 - Ceratopogon succinctus Wiedemann, 1818 [PROVISIONALLY_ACCEPTED SPECIES 301819:9TKXV nidx=null]
 + Ceratopogon succinctus Wiedemann, 1818 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SQG nidx=null]
Ceratosoma luganensis ruscorum
 - Ceratosoma luganensis ruscorum Verhoeff, 1921 [SYNONYM SUBSPECIES 301819:C5DB5 nidx=null parent=5WPHL]
 + Ceratosoma luganensis ruscorum Verhoeff, 1921 [SYNONYM SUBSPECIES 303350:CHT9Y nidx=null parent=5WPHL]
Cerciaphis ralumensis
 - Cerciaphis ralumensis [SYNONYM SPECIES 301819:8QV9R nidx=null parent=4VFMZ]
 + Cerciaphis ralumensis (Rübsaamen, 1905) [SYNONYM SPECIES 303350:CHTFJ nidx=null parent=CJGPJ]
Cercopis hemorroidalis
 - Cercopis hemorroidalis (Schrank, 1781) [SYNONYM SPECIES 301819:CFJMN nidx=null parent=76Q6T]
 + Cercopis hemorroidalis (Schrank, 1781) [SYNONYM SPECIES 303350:CHTGN nidx=null parent=76Q6T]
Cerithidea montagnei
 - Cerithidea montagnei (A. d'Orbigny, 1841) [SYNONYM SPECIES 301819:SYKW nidx=null parent=SYM2]
 + Cerithidea montagnei (A. d'Orbigny, 1839) [SYNONYM SPECIES 303350:CHTM7 nidx=null parent=CHTM8]
Cerithideopsis montagnei
 - Cerithideopsis montagnei (A. d'Orbigny, 1841) [ACCEPTED SPECIES 301819:SYM2 nidx=null]
 + Cerithideopsis montagnei (A. d'Orbigny, 1839) [ACCEPTED SPECIES 303350:CHTM8 nidx=null]
Cerithium janthinum
 - Cerithium janthinum A. Gould, 1849 [SYNONYM SPECIES 301819:BGZXG nidx=null parent=SZG5]
 + Cerithium janthinum [SYNONYM SPECIES 303350:CHTPG nidx=null parent=SZG5]
Cerithium montagnei
 - Cerithium montagnei A. d'Orbigny, 1841 [SYNONYM SPECIES 301819:69LFL nidx=null parent=SYM2]
 + Cerithium montagnei A. d'Orbigny, 1839 [SYNONYM SPECIES 303350:CHTPJ nidx=null parent=CHTM8]
Cerithium sykesi
 - Cerithium sykesi Brusina in Kobelt, 1907 [SYNONYM SPECIES 301819:5XLGK nidx=null parent=SZ2V]
 + Cerithium sykesi Brusina, 1904 [SYNONYM SPECIES 303350:CHTPQ nidx=null parent=SZ2V]
Ceroxys ethiopia
 - †Ceroxys ethiopia Meunier, 1908 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JMS5 nidx=null]
 + Ceroxys ethiopia Meunier, 1908 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SQX nidx=null]
Chaenogobius castaneus
 - Chaenogobius castaneus () non O'Shaughnessy, 1875 [MISAPPLIED SPECIES 301819:CGTYM nidx=null parent=3HS77]
 + Chaenogobius castaneus () [MISAPPLIED SPECIES 303350:CHTW8 nidx=null parent=3HS77]
Chaenostoma lisae
 - Chaenostoma lisae (Poupin & JM Bouchard, 2010) [ACCEPTED SPECIES 301819:7TNQY nidx=null]
 + Chaenostoma lisae (Poupin & Bouchard, 2010) [ACCEPTED SPECIES 303350:T9R9 nidx=null]
Chaetomitrium laevifolium
 - Chaetomitrium laevifolium Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:TCRC nidx=null]
 + Chaetomitrium laevifolium Dixon [ACCEPTED SPECIES 303350:CHV58 nidx=null]
Cheilolejeunea longiloba
 - Cheilolejeunea longiloba (Steph. ex G. Hoffm.) Kachroo & R.M. Schust. ex J.J. Engel & B.C. Tan [SYNONYM SPECIES 301819:9MKN5 nidx=null parent=TS78]
 + Cheilolejeunea longiloba (Steph. ex G. Hoffm.) Kachroo & R.M. Schust. ex J.J. Engel & B.C. Tan [SYNONYM SPECIES 303350:CHVN3 nidx=null parent=TS78]
Cheilosia nigroapicata
 - Cheilosia nigroapicata Curran, 1926 [ACCEPTED SPECIES 301819:TSRZ nidx=null]
 + Cheilosia nigroapicata Curran, 1926 [ACCEPTED SPECIES 303350:92LQG nidx=null]
Cheilosia nigrofasciata
 - Cheilosia nigrofasciata Curran, 1926 [ACCEPTED SPECIES 301819:TSS3 nidx=null]
 + Cheilosia nigrofasciata Curran, 1926 [ACCEPTED SPECIES 303350:92LQH nidx=null]
Cheilosialepta baltica
 - †Cheilosialepta baltica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JMVJ nidx=null]
 + Cheilosialepta baltica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SRQ nidx=null]
Chiloscyphus retusatus
 - Chiloscyphus retusatus (Hook. f. & Taylor) Hook. f. & Taylor ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 301819:9TVY3 nidx=null parent=3LDP9]
 + Chiloscyphus retusatus (Hook. f. & Taylor) Hook. f. & Taylor ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 303350:CHW7V nidx=null parent=3LDP9]
Chironomus articuliferus
 - Chironomus articuliferus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JMXR nidx=null]
 + Chironomus articuliferus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SS8 nidx=null]
Chironomus tessellatus
 - Chironomus tessellatus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JN5Q nidx=null]
 + Chironomus tessellatus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SSN nidx=null]
Chloroperla albidella
 - Chloroperla albidella [SYNONYM SPECIES 301819:8NHC8 nidx=null parent=5C736]
 + Chloroperla albidella (Rambur, 1842) [SYNONYM SPECIES 303350:CHV3X nidx=null parent=5C736]
Chloroperla kasarovi
 - Chloroperla kasarovi [SYNONYM SPECIES 301819:8NHG7 nidx=null parent=5XXXY]
 + Chloroperla kasarovi Braasch, 1969 [SYNONYM SPECIES 303350:CHV3Y nidx=null parent=5XXXY]
Chortophila liturata
 - Chortophila liturata Rondani, 1868 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JN92 nidx=null]
 + Chortophila liturata Rondani, 1868 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3SSZ nidx=null]
Chortophila varipes
 - Chortophila varipes Pokorny, 1889 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JN9D nidx=null]
 + Chortophila varipes Pokorny, 1889 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ST2 nidx=null]
Chrysops hermanni
 - Chrysops hermanni Kröber, 1920 [SYNONYM SPECIES 301819:889SW nidx=null parent=5YS8S]
 + Chrysops hermanni Kröber, 1920 [SYNONYM SPECIES 303350:5Z3ZG nidx=null parent=5YS8S]
Cicada (Taphura) nitida
 - Cicada (Taphura) nitida DeGeer, 1773 [SYNONYM SPECIES 301819:8HXZ8 nidx=null parent=9G9HR]
 + Cicada (Taphura) nitida DeGeer, 1773 [SYNONYM SPECIES 303350:V5YP nidx=null parent=9G9HR]
Cicada bihammata
 - Cicada bihammata (Motschulsky, 1861) [SYNONYM SPECIES 301819:CGW6S nidx=null parent=8K2NL]
 + Cicada bihammata (Motschulsky, 1861) [SYNONYM SPECIES 303350:CHW68 nidx=null parent=8K2NL]
Cicada ochracea
 - Cicada ochracea (Walker, 1850) [SYNONYM SPECIES 301819:CGW72 nidx=null parent=8JJ7R]
 + Cicada ochracea (Walker, 1850) [SYNONYM SPECIES 303350:CHW6K nidx=null parent=8JJ7R]
Cicadula cyane
 - Cicadula cyane (Boheman, 1845) [SYNONYM SPECIES 301819:CGW8X nidx=null parent=8JW7D]
 + Cicadula cyane (Boheman, 1845) [SYNONYM SPECIES 303350:8JR56 nidx=null parent=8JW7D]
Cicadula horváthi
 - Cicadula horváthi Wagner, 1935 [SYNONYM SPECIES 301819:CCZWP nidx=null parent=BQ74B]
 + Cicadula horváthi Wagner, 1935 [SYNONYM SPECIES 303350:CHW8C nidx=null parent=BQ74B]
Circulifer alboguttatus
 - Circulifer alboguttatus (Lethierry, 1874) [SYNONYM SPECIES 301819:CGWPG nidx=null parent=7479V]
 + Circulifer alboguttatus (Lethierry, 1874) [SYNONYM SPECIES 303350:CHWN3 nidx=null parent=7479V]
Cirripathes (Stichopathes) filiformis
 - Cirripathes (Stichopathes) filiformis Gray, 1868 [SYNONYM SPECIES 301819:CGWT3 nidx=null parent=52J42]
 + Cirripathes (Stichopathes) filiformis Gray, 1868 [SYNONYM SPECIES 303350:CHWRQ nidx=null parent=52J42]
Clathria (Wilsonella) australiensis var. spinulata
 - Clathria (Wilsonella) australiensis var. spinulata Hentschel, 1911 [SYNONYM VARIETY 301819:C489W nidx=null parent=VSFT]
 + Clathria (Wilsonella) australiensis var. spinulata Hentschel, 1911 [SYNONYM VARIETY 303350:CHXBM nidx=null parent=VSFT]
Cleandrus fortis
 - Cleandrus fortis [SYNONYM SPECIES 301819:8P899 nidx=null parent=4P7KX]
 + Cleandrus fortis (Walker, 1869) [SYNONYM SPECIES 303350:VWRD nidx=null parent=4P7KX]
Cleta setigera
 - Cleta setigera Krichagin, 1877 [SYNONYM SPECIES 301819:W4BB nidx=null parent=3S8G6]
 + Cleta setigera Krichagin, 1873 [SYNONYM SPECIES 303350:CHVMW nidx=null parent=3S8G6]
Clionella sinuatum
 - Clionella sinuatum [SYNONYM SPECIES 301819:C5QDM nidx=null parent=W7LT]
 + Clionella sinuatum (Born, 1778) [SYNONYM SPECIES 303350:CHVYZ nidx=null parent=W7LT]
Clytus (Echinocerus) floralis
 - Clytus (Echinocerus) floralis [SYNONYM SPECIES 301819:BRWFP nidx=null parent=BS92S]
 + Clytus (Echinocerus) floralis [SYNONYM SPECIES 303350:CHWDX nidx=null parent=BS92S]
Cnidopus veratra
 - Cnidopus veratra (Drayton in Dana, 1846) [SYNONYM SPECIES 301819:CFM66 nidx=null parent=JRGV]
 + Cnidopus veratra (Drayton in Dana, 1846) [SYNONYM SPECIES 303350:CHWJC nidx=null parent=JRGV]
Coelopleurus floridanus interruptus
 - Coelopleurus floridanus interruptus Döderlein, 1910 [SYNONYM SUBSPECIES 301819:CFMWJ nidx=null parent=WSJC]
 + Coelopleurus floridanus interruptus Döderlein, 1910 [SYNONYM SUBSPECIES 303350:CHX37 nidx=null parent=WSJC]
Coelosphaera (Coelosphaera) appendiculata antarctica
 - Coelosphaera (Coelosphaera) appendiculata antarctica Koltun, 1976 [SYNONYM SUBSPECIES 301819:CGX5H nidx=null parent=WSY8]
 + Coelosphaera (Coelosphaera) appendiculata antarctica Koltun, 1976 [SYNONYM SUBSPECIES 303350:CHX3C nidx=null parent=WSY8]
Coenobothrus karawanus
 - Coenobothrus karawanus Attems, 1938 [ACCEPTED SPECIES 301819:CGX7J nidx=null]
 + Coenobothrus karawanus Attems, 1938 [ACCEPTED SPECIES 303350:CHX5Q nidx=null]
Colobathristes pectoralis
 - Colobathristes pectoralis Stål, 1870 [AMBIGUOUS_SYNONYM SPECIES 301819:C6Q6K nidx=null parent=4FLCG]
 + Colobathristes pectoralis Stål, 1870 [AMBIGUOUS_SYNONYM SPECIES 303350:CHXJF nidx=null parent=4FLCG]
Cololejeunea ensifera
 - Cololejeunea ensifera Tixier ex L. Söderstr., Pócs, Váňa & A. Hagborg [ACCEPTED SPECIES 301819:9N2D3 nidx=null]
 + Cololejeunea ensifera Tixier ex L. Söderstr., Pócs, Váňa & A. Hagborg [ACCEPTED SPECIES 303350:X783 nidx=null]
Columbella (Alia)
 - Columbella (Alia) H. Adams & A. Adams, 1853 [SYNONYM SUBGENUS 301819:CGQLV nidx=null parent=7NNJW]
 + Columbella (Alia) H. Adams & A. Adams, 1853 [SYNONYM SUBGENUS 303350:CHQGQ nidx=null parent=7NNJW]
Conalcaea coyotero
 - Conalcaea coyotero [SYNONYM SPECIES 301819:8QJKT nidx=null parent=5GKP2]
 + Conalcaea coyotero Hebard, 1922 [SYNONYM SPECIES 303350:CHXTS nidx=null parent=5GKP2]
Conicera (Conicera) floricola
 - Conicera (Conicera) floricola Schmitz, 1938 [ACCEPTED SPECIES 301819:8BJX9 nidx=null]
 + Conicera (Conicera) floricola Schmitz, 1938 [ACCEPTED SPECIES 303350:5ZTJN nidx=null]
Conomitrium hydropogon
 - Conomitrium hydropogon (Spruce ex Mitt.) Paris [SYNONYM SPECIES 301819:9RXJ2 nidx=null parent=6J4LZ]
 + Conomitrium hydropogon (Spruce ex Mitt.) Kindb. [SYNONYM SPECIES 303350:CHY73 nidx=null parent=6J4LZ]
Conomitrium immersum
 - Conomitrium immersum (Mitt.) Paris [SYNONYM SPECIES 301819:9RXJ3 nidx=null parent=9T98M]
 + Conomitrium immersum (Mitt.) Kindb. [SYNONYM SPECIES 303350:CHY74 nidx=null parent=9T98M]
Conophyma almasyi shnitnikovi
 - Conophyma almasyi shnitnikovi [SYNONYM SUBSPECIES 301819:8Q67R nidx=null parent=7JMGL]
 + Conophyma almasyi shnitnikovi Bey-Bienko, 1948 [SYNONYM SUBSPECIES 303350:CHY7C nidx=null parent=7JMGL]
Conops (Asiconops) natalensis
 - Conops (Asiconops) natalensis Macquart, 1846 [ACCEPTED SPECIES 301819:92PC9 nidx=null]
 + Conops (Asiconops) natalensis Macquart, 1846 [ACCEPTED SPECIES 303350:XSPR nidx=null]
Conops atrimanus
 - Conops atrimanus Kröber, 1939 [SYNONYM SPECIES 301819:88CFZ nidx=null parent=8BK44]
 + Conops atrimanus Kröber, 1939 [SYNONYM SPECIES 303350:XSK3 nidx=null parent=8BK44]
Conops nigrita
 - Conops nigrita Čepelák, 1940 [SYNONYM SPECIES 301819:88CKQ nidx=null parent=XSMJ]
 + Conops nigrita Čepelák, 1940 [SYNONYM SPECIES 303350:XSPZ nidx=null parent=XSMJ]
Conus (Cylinder) priscai
 - Conus (Cylinder) priscai Bozzetti, 2012 [SYNONYM SPECIES 301819:CFM32 nidx=null parent=XWX2]
 + Conus (Cylinder) priscai Bozzetti, 2012 [SYNONYM SPECIES 303350:CHWFX nidx=null parent=XWX2]
Conus (Pionoconus) tosaensis
 - Conus (Pionoconus) tosaensis Shikama, 1970 [SYNONYM SPECIES 301819:CGWHX nidx=null parent=XJXB]
 + Conus (Pionoconus) tosaensis Shikama, 1970 [SYNONYM SPECIES 303350:CHWH5 nidx=null parent=XJXB]
Conus (Rhizoconus) suluensis
 - Conus (Rhizoconus) suluensis Shikama, 1979 [SYNONYM SPECIES 301819:CD26J nidx=null parent=5ZY5P]
 + Conus (Rhizoconus) suluensis Shikama, 1979 [SYNONYM SPECIES 303350:CHWGW nidx=null parent=5ZY5P]
Conus acuminatus
 - Conus acuminatus Borson, 1920 [SYNONYM SPECIES 301819:CFPLR nidx=null parent=94K5L]
 + Conus acuminatus Borson, 1820 [SYNONYM SPECIES 303350:CHYCJ nidx=null parent=94K5L]
Copestylum (Phalacromya) dichopticum
 - Copestylum (Phalacromya) dichopticum Thompson, 1976 [ACCEPTED SPECIES 301819:CD2FC nidx=null]
 + Copestylum (Phalacromya) dichopticum Thompson, 1976 [ACCEPTED SPECIES 303350:CHWL5 nidx=null]
Coptostoma laurensii
 - †Coptostoma laurensii (Grateloup, 1845) [ACCEPTED SPECIES 301819:Y8GJ nidx=null]
 + Coptostoma laurensii (Grateloup, 1832) [ACCEPTED SPECIES 303350:CHWXZ nidx=null]
Cordylura aea
 - Cordylura aea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JNW9 nidx=null]
 + Cordylura aea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3T4Y nidx=null]
Corina
 - Corina Schweigger, 1820 [SYNONYM GENUS 301819:BDWXR nidx=null parent=7NTLN]
 + Corina Gaertner, 1774 [SYNONYM GENUS 303350:CHX6R nidx=null parent=7NTLN]
Corrigia bonasia
 - Corrigia bonasia Oliger, 1950 [ACCEPTED SPECIES 301819:C2CWX nidx=null]
 + Corrigia bonasia Oliger, 1952 [ACCEPTED SPECIES 303350:CHX88 nidx=null]
Coryda alauda dennisoni
 - Coryda alauda dennisoni (L. Pfeiffer, 1857) [ACCEPTED SUBSPECIES 301819:B6HRV nidx=null]
 + Coryda alauda dennisoni (L. Pfeiffer, 1853) [ACCEPTED SUBSPECIES 303350:CHXHX nidx=null]
Coryna
 - Coryna Bosc, 1802 [SYNONYM GENUS 301819:BDWXW nidx=null parent=7NTLN]
 + Coryna Gaertner, 1774 [SYNONYM GENUS 303350:CHXJZ nidx=null parent=7NTLN]
Cosmosciara hartii
 - Cosmosciara hartii (Johannsen, 1912) [ACCEPTED SPECIES 301819:8BLH3 nidx=null]
 + Cosmosciara hartii (Johannsen, 1912) [ACCEPTED SPECIES 303350:8BLH2 nidx=null]
Costellamussiopecten hosiusi
 - †Costellamussiopecten hosiusi (Lehmann, 1892) [ACCEPTED SPECIES 301819:B6HX4 nidx=null]
 + Costellamussiopecten hosiusi (Lehmann, 1885) [ACCEPTED SPECIES 303350:CHXRZ nidx=null]
Crassispira bottae
 - Crassispira bottae (Valenciennes in Kiener, 1839) [ACCEPTED SPECIES 301819:Z6QV nidx=null]
 + Crassispira bottae (Kiener, 1839) [ACCEPTED SPECIES 303350:CHY6L nidx=null]
Crassostrea (Magallana) ariakensis
 - Crassostrea (Magallana) ariakensis (Fujita, 1913) [SYNONYM SPECIES 301819:8RXQ7 nidx=null parent=C562B]
 + Crassostrea (Magallana) ariakensis (Fujita, 1913) [SYNONYM SPECIES 303350:Z6YW nidx=null parent=C562B]
Crenella viator
 - Crenella viator (A. Orbigny, 1842) [SYNONYM SPECIES 301819:CD5H8 nidx=null parent=44QCR]
 + Crenella viator (A. Orbigny, 1846) [SYNONYM SPECIES 303350:CHYFR nidx=null parent=CJ8QL]
Cricotopus (Isocladius) stenosandalum
 - Cricotopus (Isocladius) stenosandalum Kieffer, 1921 [ACCEPTED SPECIES 301819:BZ6D8 nidx=null]
 + Cricotopus (Isocladius) stenosandalum Kieffer, 1921 [ACCEPTED SPECIES 303350:CHYMV nidx=null]
Cryphaea patens
 - Cryphaea patens Hornsch. ex Müll. Hal. [ACCEPTED SPECIES 301819:9K2WG nidx=null]
 + Cryphaea patens Hornsch. ex Müll. Hal. [ACCEPTED SPECIES 303350:CHX5Y nidx=null]
Cryptocyclops falsus
 - Cryptocyclops falsus (Kiefer, 1929) [ACCEPTED SPECIES 301819:ZWZP nidx=null]
 + Cryptocyclops falsus (Kiefer, 1926) [ACCEPTED SPECIES 303350:CHXB4 nidx=null]
Cryptolophocolea tuberculata
 - Cryptolophocolea tuberculata (J.J. Engel) L. Söderstr. [ACCEPTED SPECIES 301819:C9F7J nidx=null]
 + Cryptolophocolea tuberculata (J.J. Engel) L. Söderstr. [ACCEPTED SPECIES 303350:CHXBQ nidx=null]
Cryptoplax hartmeyeri
 - Cryptoplax hartmeyeri Thiele, 1911 [SYNONYM SPECIES 301819:7QWC4 nidx=null parent=ZYVL]
 + Cryptoplax hartmeyeri Thiele, 1911 [ACCEPTED SPECIES 303350:ZYVV nidx=null]
Cryptoplax mjoebergi
 - Cryptoplax mjoebergi Bergenhayn, 1933 [ACCEPTED SPECIES 301819:8TNM4 nidx=null]
 + Cryptoplax mjoebergi Bergenhayn, 1933 [SYNONYM SPECIES 303350:7QWC9 nidx=null parent=ZYVL]
Ctenophorocera polleniina
 - Ctenophorocera polleniina Bezzi, 1908 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JP34 nidx=null]
 + Ctenophorocera polleniina Bezzi, 1908 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3T9S nidx=null]
Culex (Melanoconion) xivylis
 - Culex (Melanoconion) xivylis Dyar, 1920 [ACCEPTED SPECIES 301819:C4Q48 nidx=null]
 + Culex (Melanoconion) xivylis Dyar, 1920 [ACCEPTED SPECIES 303350:CHXNX nidx=null]
Culex fossilis
 - †Culex fossilis Brodie, 1845 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JP45 nidx=null]
 + Culex fossilis Brodie, 1845 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3TB4 nidx=null]
Culicoides (Meijerehelea) sugimotonis
 - Culicoides (Meijerehelea) sugimotonis Shiraki, 1913 [ACCEPTED SPECIES 301819:CD4CT nidx=null]
 + Culicoides (Meijerehelea) sugimotonis Shiraki, 1913 [ACCEPTED SPECIES 303350:CHXPJ nidx=null]
Cyana (Caudovulpecula) flammeostrigata
 - Cyana (Caudovulpecula) flammeostrigata Karisch, 2003 [ACCEPTED SPECIES 301819:BZ6FW nidx=null]
 + Cyana (Caudovulpecula) flammeostrigata Karisch, 2003 [ACCEPTED SPECIES 303350:CHY2F nidx=null]
Cyclops falsus
 - Cyclops falsus Kiefer, 1929 [SYNONYM SPECIES 301819:6BTVJ nidx=null parent=ZWZP]
 + Cyclops falsus Kiefer, 1926 [SYNONYM SPECIES 303350:CHYG9 nidx=null parent=CHXB4]
Cyclops stagnalis
 - Cyclops stagnalis Einsle, 1992 [ACCEPTED SPECIES 301819:9HDF3 nidx=null]
 + Cyclops stagnalis Einsle, 1996 [ACCEPTED SPECIES 303350:32WBV nidx=null]
Cyclops viridis ingens
 - Cyclops viridis ingens Herrick, 1895 [SYNONYM SUBSPECIES 301819:857ZH nidx=null parent=7ZH8G]
 + Cyclops viridis ingens Herrick, 1882 [SYNONYM SUBSPECIES 303350:CHYGJ nidx=null parent=7ZH8G]
Cymba (Enneagonum)
 - Cymba (Enneagonum) Eschscholtz, 1829 [SYNONYM SUBGENUS 301819:BDX36 nidx=null parent=7NYQT]
 + Cymba (Enneagonum) Quoy & Gaimard, 1827 [SYNONYM SUBGENUS 303350:CHYT4 nidx=null parent=7NYQT]
Cynodontium glaucescens
 - Cynodontium glaucescens (Lindb. & Arnell) Paris [SYNONYM SPECIES 301819:9RY86 nidx=null parent=WHZ4]
 + Cynodontium glaucescens (Lindb. & Arnell) Kindb. [SYNONYM SPECIES 303350:CHZ2J nidx=null parent=WHZ4]
Cynodontium luridum
 - Cynodontium luridum (Bruch) Fürnr. [SYNONYM SPECIES 301819:9RY8J nidx=null parent=4TXLH]
 + Cynodontium luridum (Hornsch. ex Spreng.) Wallr. [SYNONYM SPECIES 303350:CHZ2L nidx=null parent=9LG9B]
Cypraea koninckii
 - Cypraea koninckii Rouault, 1848 [SYNONYM SPECIES 301819:8Z8N5 nidx=null parent=8YK28]
 + Cypraea koninckii Rouault, 1850 [SYNONYM SPECIES 303350:CHX5D nidx=null parent=CJGDF]
Cytheropteron (Cytheropteron) fornix
 - Cytheropteron (Cytheropteron) fornix Hornibrook, 1952 [SYNONYM SPECIES 301819:CGXJR nidx=null parent=48L5Y]
 + Cytheropteron (Cytheropteron) fornix Hornibrook, 1952 [SYNONYM SPECIES 303350:CHXGM nidx=null parent=48L5Y]
Danielopolina (Danielopolina) kornickeri
 - Danielopolina (Danielopolina) kornickeri Danielopol, Baltanás & Humphreys, 2000 [SYNONYM SPECIES 301819:CGXW7 nidx=null parent=5BWZ5]
 + Danielopolina (Danielopolina) kornickeri Danielopol, Baltanás & Humphreys, 2000 [SYNONYM SPECIES 303350:CHXS9 nidx=null parent=5BWZ5]
Daphinia
 - Daphinia Rafinesque, 1815 [SYNONYM GENUS 301819:BGBXT nidx=null parent=7NRJ6]
 + Daphinia Rafinesque, 1817 [SYNONYM GENUS 303350:CHXSV nidx=null parent=7NRJ6]
Daphinia dorsalis
 - Daphinia dorsalis Rafinesque, 1815 [SYNONYM SPECIES 301819:344N3 nidx=null parent=PFLZ]
 + Daphinia dorsalis Rafinesque, 1817 [SYNONYM SPECIES 303350:CHXSW nidx=null parent=PFM4]
Dasypogon (Saropogon) chalybeiventris
 - Dasypogon (Saropogon) chalybeiventris Loew, 1851 [SYNONYM SPECIES 301819:349LG nidx=null parent=8B38Z]
 + Dasypogon (Saropogon) chalybeiventris Loew, 1851 [SYNONYM SPECIES 303350:88JBC nidx=null parent=8B38Z]
Degeeria mexicana
 - Degeeria mexicana Giglio-Tos, 1893 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JPZL nidx=null]
 + Degeeria mexicana Giglio-Tos, 1893 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3TJM nidx=null]
Delphinula rotellaeformis
 - Delphinula rotellaeformis Grateloup, 1832 [SYNONYM SPECIES 301819:34JVG nidx=null parent=6PTXC]
 + Delphinula rotellaeformis Grateloup, 1828 [SYNONYM SPECIES 303350:CHYJD nidx=null parent=CJ6VG]
Deltocephalus harrisii
 - Deltocephalus harrisii Osborn, 1892 [SYNONYM SPECIES 301819:CFPVR nidx=null parent=4JJW9]
 + Deltocephalus harrisii Osborn, 1892 [SYNONYM SPECIES 303350:CHYLC nidx=null parent=4JJW9]
Deltocephalus myscellus
 - Deltocephalus myscellus (Ball, 1899) [SYNONYM SPECIES 301819:CFPVT nidx=null parent=6P37J]
 + Deltocephalus myscellus (Ball, 1899) [SYNONYM SPECIES 303350:CHYLG nidx=null parent=6P37J]
Deltocephalus tiaratus
 - Deltocephalus tiaratus Fieber, 1869 [SYNONYM SPECIES 301819:CGYNP nidx=null parent=C9P8R]
 + Deltocephalus tiaratus Fieber, 1869 [SYNONYM SPECIES 303350:CHYLM nidx=null parent=C9P8R]
Dendromyia (Calladimyia) melanoides
 - Dendromyia (Calladimyia) melanoides Root, 1928 [SYNONYM SPECIES 301819:34QNS nidx=null parent=5C4BH]
 + Dendromyia (Calladimyia) melanoides Root, 1928 [SYNONYM SPECIES 303350:88JM9 nidx=null parent=5C4BH]
Deracanthella verrucosa
 - Deracanthella verrucosa [SYNONYM SPECIES 301819:8PY7T nidx=null parent=34V59]
 + Deracanthella verrucosa (Fischer von Waldheim, 1846) [SYNONYM SPECIES 303350:CHZ4T nidx=null parent=34V59]
Dermomurex (Dermomurex)
 - Dermomurex (Dermomurex) Monterosato, 1890 [SYNONYM SUBGENUS 301819:CFFJS nidx=null parent=7NVT5]
 + Dermomurex (Dermomurex) Monterosato, 1890 [SYNONYM SUBGENUS 303350:CHR4L nidx=null parent=7NVT5]
Dermomurex (Trialatella) jani
 - Dermomurex (Trialatella) jani (Doderlein, 1862) [SYNONYM SPECIES 301819:873ZM nidx=null parent=9F3RT]
 + Dermomurex (Trialatella) jani (Bellardi, 1873) [SYNONYM SPECIES 303350:CHZC6 nidx=null parent=CHZC7]
Dermomurex jani
 - Dermomurex jani (Doderlein, 1862) [ACCEPTED SPECIES 301819:9F3RT nidx=null]
 + Dermomurex jani (Bellardi, 1873) [ACCEPTED SPECIES 303350:CHZC7 nidx=null]
Diacyclops clandestinus
 - Diacyclops clandestinus (Yeatman, 1964) [SYNONYM SPECIES 301819:357FN nidx=null parent=357JN]
 + Diacyclops clandestinus (Kiefer, 1926) [SYNONYM SPECIES 303350:CHXSD nidx=null parent=357JN]
Dianemobius mikado
 - Dianemobius mikado [SYNONYM SPECIES 301819:8PSGC nidx=null parent=8Q3GS]
 + Dianemobius mikado (Shiraki, 1911) [SYNONYM SPECIES 303350:CHXVK nidx=null parent=8Q3GS]
Dichelacera abiens
 - Dichelacera abiens Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQ6L nidx=null]
 + Dichelacera abiens Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3TKF nidx=null]
Dicranella subulata f. subintegra
 - Dicranella subulata f. subintegra Latzel [SYNONYM FORM 301819:9VM4F nidx=null parent=BLRKW]
 + Dicranella subulata f. subintegra (Latzel) Podp. [SYNONYM FORM 303350:CHYM4 nidx=null parent=BLRKW]
Dicranum aquaticum
 - Dicranum aquaticum Ehrh. ex P. Beauv. [AMBIGUOUS_SYNONYM SPECIES 301819:9RZ5Q nidx=null parent=35M4J]
 + Dicranum aquaticum Ehrh. ex Brid. [AMBIGUOUS_SYNONYM SPECIES 303350:CHYPY nidx=null parent=35M4J]
Dicranum bergeri
 - Dicranum bergeri Blandow ex Hoppe [SYNONYM SPECIES 301819:BVTCP nidx=null parent=35TPR]
 + Dicranum bergeri Blandow ex Hoppe [SYNONYM SPECIES 303350:CHYPZ nidx=null parent=35TPR]
Dicranum bicolor
 - Dicranum bicolor Hornsch. ex Müll. Hal. [SYNONYM SPECIES 301819:9RZ77 nidx=null parent=QHKQ]
 + Dicranum bicolor Hornsch. ex Müll. Hal. [SYNONYM SPECIES 303350:CHYQ2 nidx=null parent=QHKQ]
Dicranum canariense
 - Dicranum canariense Hampe ex Müll. Hal. [SYNONYM SPECIES 301819:9L9WW nidx=null parent=9K4DK]
 + Dicranum canariense Hampe ex Müll. Hal. [SYNONYM SPECIES 303350:CHYQ4 nidx=null parent=9K4DK]
Dicranum cuneifolium
 - Dicranum cuneifolium Hampe ex Müll. Hal. & Geh. [SYNONYM SPECIES 301819:9RZBH nidx=null parent=6PSMP]
 + Dicranum cuneifolium Hampe ex Müll. Hal. & Geh. [SYNONYM SPECIES 303350:CHYQ8 nidx=null parent=6PSMP]
Dicranum incurvum
 - Dicranum incurvum Starke [AMBIGUOUS_SYNONYM SPECIES 301819:9L9XD nidx=null parent=9K6N8]
 + Dicranum incurvum F. Weber & D. Mohr [AMBIGUOUS_SYNONYM SPECIES 303350:CHYQG nidx=null parent=9K6N8]
Dicranum palustre
 - Dicranum palustre Brid. ex Schumach. [AMBIGUOUS_SYNONYM SPECIES 301819:9MM6R nidx=null parent=SN4H]
 + Dicranum palustre Brid. ex Schumach. [AMBIGUOUS_SYNONYM SPECIES 303350:CHYQJ nidx=null parent=SN4H]
Dicranum robustum
 - Dicranum robustum Blytt ex Bruch & Schimp. [AMBIGUOUS_SYNONYM SPECIES 301819:9RZRX nidx=null parent=9K4CG]
 + Dicranum robustum Blytt ex Bruch & Schimp. [AMBIGUOUS_SYNONYM SPECIES 303350:CHYQL nidx=null parent=9K4CG]
Dictyophorus sponsus
 - Dictyophorus sponsus [SYNONYM SPECIES 301819:8PY9R nidx=null parent=5GWC6]
 + Dictyophorus sponsus Thunberg, 1787 [SYNONYM SPECIES 303350:CHYSL nidx=null parent=5GWC6]
Didinium balbianii
 - Didinium balbianii Fabre-Domergue, 1888 [AMBIGUOUS_SYNONYM SPECIES 301819:CGYXZ nidx=null parent=5JR4K]
 + Didinium balbianii Kahl, 1930 [AMBIGUOUS_SYNONYM SPECIES 303350:CHYX2 nidx=null parent=5JR4N]
 + Didinium balbianii Fabre-Domergue, 1888 [AMBIGUOUS_SYNONYM SPECIES 303350:CHYX4 nidx=null parent=5JR4K]
Diedronotus schulzi
 - Diedronotus schulzi [SYNONYM SPECIES 301819:8P8XC nidx=null parent=5CJZN]
 + Diedronotus schulzi (Bruner, 1900) [SYNONYM SPECIES 303350:35ZSZ nidx=null parent=5CJZN]
Diestramima (Diestramima) himalayana
 - Diestramima (Diestramima) himalayana (Griffini, 1914) [ACCEPTED SPECIES 301819:8PYBN nidx=null]
 + Diestramima (Diestramima) himalayana (Griffini, 1914) [ACCEPTED SPECIES 303350:362LB nidx=null]
Digitariopsis grateloupi
 - †Digitariopsis grateloupi (Deshayes, 1843) [ACCEPTED SPECIES 301819:C55QL nidx=null]
 + Digitariopsis grateloupi (Cossmann & Peyrot, 1912) [ACCEPTED SPECIES 303350:CHZB9 nidx=null]
Dinocras donemechi
 - Dinocras donemechi [SYNONYM SPECIES 301819:8NH8F nidx=null parent=368WS]
 + Dinocras donemechi Navás, 1933 [SYNONYM SPECIES 303350:CHZJK nidx=null parent=368WS]
Diplocheilus allmani
 - Diplocheilus allmani Torrey, 1902 [SYNONYM SPECIES 301819:36JTK nidx=null parent=4QN52]
 + Diplocheilus allmani Torrey, 1904 [SYNONYM SPECIES 303350:CHZYJ nidx=null parent=4QN52]
Diplocolenus (Gelidanus) bensoni
 - Diplocolenus (Gelidanus) bensoni (China, 1933) [SYNONYM SPECIES 301819:CFSP8 nidx=null parent=36JZL]
 + Diplocolenus (Gelidanus) bensoni (China, 1933) [SYNONYM SPECIES 303350:CHZYZ nidx=null parent=36JZL]
Diplosis fleothripetiperda
 - Diplosis fleothripetiperda Del Guercio, 1931 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQ89 nidx=null]
 + Diplosis fleothripetiperda Del Guercio, 1931 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3TQ6 nidx=null]
Diponthus permistus
 - Diponthus permistus [SYNONYM SPECIES 301819:8P93J nidx=null parent=36PZQ]
 + Diponthus permistus (Serville, 1838) [SYNONYM SPECIES 303350:36Q26 nidx=null parent=36PZQ]
Ditrichum sekii
 - Ditrichum sekii Ando & Deguchi ex Matsui & Z. Iwats. [ACCEPTED SPECIES 301819:36ZBN nidx=null]
 + Ditrichum sekii Ando & Deguchi ex Matsui & Z. Iwats. [ACCEPTED SPECIES 303350:CHYM6 nidx=null]
Dolichopus (Dolichopus) maculicornis
 - Dolichopus (Dolichopus) maculicornis Verrall, 1875 [ACCEPTED SPECIES 301819:CGYVX nidx=null]
 + Dolichopus (Dolichopus) maculicornis Verrall, 1875 [ACCEPTED SPECIES 303350:CHYV2 nidx=null]
Dolichopus (Dolichopus) parvicaudatus
 - Dolichopus (Dolichopus) parvicaudatus Zetterstedt, 1843 [ACCEPTED SPECIES 301819:92R7R nidx=null]
 + Dolichopus (Dolichopus) parvicaudatus Zetterstedt, 1843 [ACCEPTED SPECIES 303350:376N6 nidx=null]
Drylix parallelus
 - Drylix parallelus (Van Duzee, 1891) [SYNONYM SPECIES 301819:CH23X nidx=null parent=72F8Y]
 + Drylix parallelus (Van Duzee, 1891) [SYNONYM SPECIES 303350:CJ238 nidx=null parent=72F8Y]
Drymaeus (Mesembrinus) immaculatus
 - Drymaeus (Mesembrinus) immaculatus (C. B. Adams, 1850) [SYNONYM SPECIES 301819:7R5B3 nidx=null parent=BM2SK]
 + Drymaeus (Mesembrinus) immaculatus (Reeve, 1850) [SYNONYM SPECIES 303350:CJ248 nidx=null parent=CHRQC]
Drymaeus immaculatus
 - Drymaeus immaculatus (C. B. Adams) [SYNONYM SPECIES 301819:7R5JY nidx=null parent=BM2SK]
 + Drymaeus immaculatus (Reeve, 1850) [SYNONYM SPECIES 303350:CJ249 nidx=null parent=CHRQC]
Dufoichaena
 - Dufoichaena Jousseaume in E. Lamy, 1925 [ACCEPTED GENUS 301819:7P37K nidx=null]
 + Dufoichaena Jousseaume, 1923 [ACCEPTED GENUS 303350:CJ28P nidx=null]
Dynatosoma gracile
 - Dynatosoma gracile Kertész, 1901 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQK5 nidx=null]
 + Dynatosoma gracile Kertész, 1901 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3V3P nidx=null]
Dysaphis (Dysaphis) apiifolia
 - Dysaphis (Dysaphis) apiifolia (Theobald, 1923) [ACCEPTED SPECIES 301819:CD95Z nidx=null]
 + Dysaphis (Dysaphis) apiifolia (Theobald, 1923) [ACCEPTED SPECIES 303350:CJ2DS nidx=null]
Ecituncula (Ecituncula) aptera
 - Ecituncula (Ecituncula) aptera Schmitz, 1923 [ACCEPTED SPECIES 301819:8BYMG nidx=null]
 + Ecituncula (Ecituncula) aptera Schmitz, 1923 [ACCEPTED SPECIES 303350:38N5T nidx=null]
Ecituncula (Ecituncula) berghoffae
 - Ecituncula (Ecituncula) berghoffae Disney & Berghoff, 2005 [ACCEPTED SPECIES 301819:8BYMH nidx=null]
 + Ecituncula (Ecituncula) berghoffae Disney & Berghoff, 2005 [ACCEPTED SPECIES 303350:6DWK9 nidx=null]
Ecituncula (Ecituncula) longipilosa
 - Ecituncula (Ecituncula) longipilosa Borgmeier, 1925 [ACCEPTED SPECIES 301819:8BYMJ nidx=null]
 + Ecituncula (Ecituncula) longipilosa Borgmeier, 1925 [ACCEPTED SPECIES 303350:38N5X nidx=null]
Ecituncula (Ecituncula) tarsalis
 - Ecituncula (Ecituncula) tarsalis Borgmeier, 1925 [ACCEPTED SPECIES 301819:8BYMK nidx=null]
 + Ecituncula (Ecituncula) tarsalis Borgmeier, 1925 [ACCEPTED SPECIES 303350:38N62 nidx=null]
Ectropothecium striatulum
 - Ectropothecium striatulum Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:38RQR nidx=null]
 + Ectropothecium striatulum Dixon [ACCEPTED SPECIES 303350:CHZBM nidx=null]
Ectropothecium vitiense
 - Ectropothecium vitiense Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:38RRK nidx=null]
 + Ectropothecium vitiense Dixon ex E.B. Bartram [ACCEPTED SPECIES 303350:CHZBN nidx=null]
Edendrium
 - Edendrium Allman, 1872 [SYNONYM GENUS 301819:BDX2Y nidx=null parent=7NZD8]
 + Edendrium Ehrenberg, 1834 [SYNONYM GENUS 303350:CHZDM nidx=null parent=7NZD8]
Elaeochlora bilunata
 - Elaeochlora bilunata [SYNONYM SPECIES 301819:8P9FJ nidx=null parent=B3GT]
 + Elaeochlora bilunata (Gerstaecker, 1873) [SYNONYM SPECIES 303350:38Y8D nidx=null parent=B3GT]
Elaeochlora bivattata
 - Elaeochlora bivattata [SYNONYM SPECIES 301819:8PYHR nidx=null parent=B3GP]
 + Elaeochlora bivattata (Gerstaecker, 1873) [SYNONYM SPECIES 303350:CHZPY nidx=null parent=B3GP]
Elaeochlora picticollis
 - Elaeochlora picticollis [SYNONYM SPECIES 301819:8P9FL nidx=null parent=B3GW]
 + Elaeochlora picticollis (Gerstaecker, 1873) [SYNONYM SPECIES 303350:38Y8Q nidx=null parent=B3GW]
Elaeochlora scabra
 - Elaeochlora scabra [SYNONYM SPECIES 301819:8P9FM nidx=null parent=B3GM]
 + Elaeochlora scabra (Thunberg, 1824) [SYNONYM SPECIES 303350:38Y8T nidx=null parent=B3GM]
Elaeochlora spoliata
 - Elaeochlora spoliata [SYNONYM SPECIES 301819:8P9FN nidx=null parent=B3GM]
 + Elaeochlora spoliata (Walker, 1870) [SYNONYM SPECIES 303350:6DZKQ nidx=null parent=B3GM]
Elaphostrongylus cervi panticola
 - Elaphostrongylus cervi panticola Lubimov, 1945 [ACCEPTED SUBSPECIES 301819:C2XVL nidx=null]
 + Elaphostrongylus cervi panticola (Lubimov, 1945) Pryadko & Boev, 1971 [SYNONYM SUBSPECIES 303350:CHZSV nidx=null parent=CHZSX]
Elaphostrongylus cervi rangiferi
 - Elaphostrongylus cervi rangiferi Mickevitsch, 1960 [ACCEPTED SUBSPECIES 301819:C2XRD nidx=null]
 + Elaphostrongylus cervi rangiferi (Mickevitsch, 1960) Pryadko & Boev, 1971 [SYNONYM SUBSPECIES 303350:CHZSW nidx=null parent=CHZSY]
Elasmopus polynesus
 - Elasmopus polynesus Krapp-Schickela & Müller, 2011 [ACCEPTED SPECIES 301819:394SP nidx=null]
 + Elasmopus polynesus Krapp-Schickel & Müller in Lowry & Myers, 2013 [ACCEPTED SPECIES 303350:CHZTW nidx=null]
Elimaea (Orthelimaea) klinghardti
 - Elimaea (Orthelimaea) klinghardti [SYNONYM SPECIES 301819:8PYJH nidx=null parent=6SXMK]
 + Elimaea (Orthelimaea) klinghardti (Krausze, 1903) [SYNONYM SPECIES 303350:CJ235 nidx=null parent=6SXMK]
Encalypta armata
 - Encalypta armata Broth. ex Dusén [ACCEPTED SPECIES 301819:39MRD nidx=null]
 + Encalypta armata Broth. ex Dusén [ACCEPTED SPECIES 303350:CJ2FQ nidx=null]
Enneagonum sagittatum
 - Enneagonum sagittatum Schneider, 1898 [SYNONYM SPECIES 301819:BDXVB nidx=null parent=5XKT2]
 + Enneagonum sagittatum (Quoy & Gaimard, 1827) [SYNONYM SPECIES 303350:CJ2RJ nidx=null parent=5XKT2]
Ennucula puelcha
 - Ennucula puelcha (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:39W6T nidx=null]
 + Ennucula puelcha (A. d'Orbigny, 1844) [ACCEPTED SPECIES 303350:CJ2RT nidx=null]
Entosthodon riparius
 - Entosthodon riparius (Lindb.) Paris [SYNONYM SPECIES 301819:9S3J7 nidx=null parent=6FFY8]
 + Entosthodon riparius (Lindb.) Kindb. [SYNONYM SPECIES 303350:CJ33T nidx=null parent=6FFY8]
Eomonotis setakanensis
 - †Eomonotis setakanensis (Kiparisova, 1961) [ACCEPTED SPECIES 301819:CH382 nidx=null]
 + Eomonotis setakanensis (Kiparisova, 1964) [ACCEPTED SPECIES 303350:CJ367 nidx=null]
Ephemerum tenerum
 - Ephemerum tenerum (Bruch & Schimp.) Hampe ex Müll. Hal. [SYNONYM SPECIES 301819:9LCMH nidx=null parent=73H4H]
 + Ephemerum tenerum (Bruch & Schimp.) Hampe ex Müll. Hal. [SYNONYM SPECIES 303350:CJ3CB nidx=null parent=73H4H]
Ephippiger antilope
 - Ephippiger antilope [SYNONYM SPECIES 301819:8P9L8 nidx=null parent=34V59]
 + Ephippiger antilope (Fischer von Waldheim, 1833) [SYNONYM SPECIES 303350:6FPVP nidx=null parent=34V59]
Ephippiger latipennis
 - Ephippiger latipennis [SYNONYM SPECIES 301819:8QKMT nidx=null parent=9GV5L]
 + Ephippiger latipennis Fischer, 1853 [SYNONYM SPECIES 303350:CJ3CN nidx=null parent=9GV5L]
Ephippiger sphacophilus
 - Ephippiger sphacophilus [SYNONYM SPECIES 301819:8P9LH nidx=null parent=BSZDC]
 + Ephippiger sphacophilus Krauss, 1879 [SYNONYM SPECIES 303350:6G279 nidx=null parent=BSZDC]
Ephippigera cuni
 - Ephippigera cuni [SYNONYM SPECIES 301819:8PYPN nidx=null parent=5H4TM]
 + Ephippigera cuni Bolívar, 1877 [SYNONYM SPECIES 303350:CJ3CR nidx=null parent=5H4TM]
Ephippigera dalmatica
 - Ephippigera dalmatica Krauss, 1879 [SYNONYM SPECIES 301819:BV6KS nidx=null parent=BSZDC]
 + Ephippigera dalmatica Kollar [SYNONYM SPECIES 303350:CJ3CS nidx=null parent=BSZDC]
Ephippigerida latipennis
 - Ephippigerida latipennis [SYNONYM SPECIES 301819:8QHRX nidx=null parent=9GV5L]
 + Ephippigerida latipennis (Fischer, 1853) [SYNONYM SPECIES 303350:CJ3CX nidx=null parent=9GV5L]
Ephippigerida limbata
 - Ephippigerida limbata [SYNONYM SPECIES 301819:8PYQG nidx=null parent=BSZDC]
 + Ephippigerida limbata (Fischer, 1853) [SYNONYM SPECIES 303350:CJ3CY nidx=null parent=BSZDC]
Ephippium nigerrima
 - Ephippium nigerrima Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQR6 nidx=null]
 + Ephippium nigerrima Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3V9Z nidx=null]
Epicepon
 - Epicepon Boyko & Williams, 2021 [ACCEPTED GENUS 301819:8HG55 nidx=null]
 + Epicepon Boyko, 2024 [ACCEPTED GENUS 303350:CJ3H6 nidx=null]
Erax nervosus
 - Erax nervosus Macquart, 1838 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQS4 nidx=null]
 + Erax nervosus Macquart, 1838 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3VFS nidx=null]
Eremocharis afghana
 - Eremocharis afghana Ünal, 2016 [AMBIGUOUS_SYNONYM SPECIES 301819:8P9MF nidx=null parent=8NRG8]
 + Eremocharis afghana Ramme, 2016 [AMBIGUOUS_SYNONYM SPECIES 303350:CHZYK nidx=null parent=8NRG8]
Erianthus frushstorferi
 - Erianthus frushstorferi [SYNONYM SPECIES 301819:8PYRF nidx=null parent=6GKPG]
 + Erianthus frushstorferi Bolívar, 1930 [SYNONYM SPECIES 303350:CJ25L nidx=null parent=6GKPG]
Eristalis (Eoseristalis) inornatus
 - Eristalis (Eoseristalis) inornatus Loew, 1866 [ACCEPTED SPECIES 301819:CD97T nidx=null]
 + Eristalis (Eoseristalis) inornatus Loew, 1866 [ACCEPTED SPECIES 303350:CJ2F7 nidx=null]
Eristalis lapideus
 - †Eristalis lapideus Scudder, 1877 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQTJ nidx=null]
 + Eristalis lapideus Scudder, 1877 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3VHY nidx=null]
Eristalis paucisinuatus
 - †Eristalis paucisinuatus Théobald, 1937 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQTL nidx=null]
 + Eristalis paucisinuatus Théobald, 1937 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3RK8 nidx=null]
Erpodium diversifolium
 - Erpodium diversifolium (Ångstr. ex Müll. Hal.) Paris [SYNONYM SPECIES 301819:9S3P6 nidx=null parent=3B9H4]
 + Erpodium diversifolium (Ångstr. ex Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CJ2HP nidx=null parent=3B9H4]
Erudendrium
 - Erudendrium Thompson, 1899 [SYNONYM GENUS 301819:BDX3B nidx=null parent=7NZD8]
 + Erudendrium Ehrenberg, 1834 [SYNONYM GENUS 303350:CJ2K8 nidx=null parent=7NZD8]
Euchelus horridus
 - Euchelus horridus (R. A. Philippi, 1846) [ACCEPTED SPECIES 301819:3BSQM nidx=null]
 + Euchelus horridus (R. A. Philippi, 1849) [ACCEPTED SPECIES 303350:CJ377 nidx=null]
Euchorthippus dahinganlinensis
 - Euchorthippus dahinganlinensis [SYNONYM SPECIES 301819:8PYS3 nidx=null parent=3BT8Y]
 + Euchorthippus dahinganlinensis Zhang & Ren, 1992 [SYNONYM SPECIES 303350:CJ37X nidx=null parent=3BT8Y]
Euchorthippus herbaceous
 - Euchorthippus herbaceous [SYNONYM SPECIES 301819:8PYS4 nidx=null parent=3BT97]
 + Euchorthippus herbaceous Zhang & Jin, 1985 [SYNONYM SPECIES 303350:CJ37Y nidx=null parent=3BT97]
Eucyclops (Denticyclops) birmanus
 - Eucyclops (Denticyclops) birmanus Lindberg, 1943 [ACCEPTED SPECIES 301819:B43HG nidx=null]
 + Eucyclops (Denticyclops) birmanus Lindberg, 1949 [ACCEPTED SPECIES 303350:CJ3CZ nidx=null]
Eulimella quadrasi
 - Eulimella quadrasi O. Boettger, 1893 [ACCEPTED SPECIES 301819:6GXGG nidx=null]
 + Eulimella quadrasi O. Boettger, 1896 [ACCEPTED SPECIES 303350:CHZSH nidx=null]
Eunice pellucida
 - Eunice pellucida Kinberg, 1865 [ACCEPTED SPECIES 301819:8SZCJ nidx=null]
 + Eunice pellucida Kinberg, 1865 [SYNONYM SPECIES 303350:6H9ZM nidx=null parent=CJLJ6]
Eupteryx concinna
 - Eupteryx concinna (Germar, 1831) [SYNONYM SPECIES 301819:CH2P7 nidx=null parent=3CZDK]
 + Eupteryx concinna (Germar, 1831) [SYNONYM SPECIES 303350:CJ2MP nidx=null parent=3CZDK]
Eurhynchium
 - Eurhynchium Schimp. [ACCEPTED GENUS 301819:9JK8N nidx=null]
 + Eurhynchium Schimp. [ACCEPTED GENUS 303350:CJ2NH nidx=null]
Eurhynchium apiculigerum
 - Eurhynchium apiculigerum (Lindb. & Arnell) Paris [SYNONYM SPECIES 301819:9S3VZ nidx=null parent=9MJKB]
 + Eurhynchium apiculigerum (Lindb. & Arnell) Kindb. [SYNONYM SPECIES 303350:CJ2NK nidx=null parent=9MJKB]
Eurigaster postica
 - Eurigaster postica Walker, 1861 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQZK nidx=null]
 + Eurigaster postica Walker, 1861 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3VKT nidx=null]
Eurigaster strigosa
 - Eurigaster strigosa Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQZQ nidx=null]
 + Eurigaster strigosa Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3VKV nidx=null]
Euscelis parallela
 - Euscelis parallela (Van Duzee, 1891) [SYNONYM SPECIES 301819:C735P nidx=null parent=72F8Y]
 + Euscelis parallela (Van Duzee, 1891) [SYNONYM SPECIES 303350:CJ2WH nidx=null parent=72F8Y]
Eutettix (Eutettix) subaeneus marmoratus
 - Eutettix (Eutettix) subaeneus marmoratus Van Duzee, 1892 [SYNONYM SUBSPECIES 301819:BQ47Y nidx=null parent=8RKL2]
 + Eutettix (Eutettix) subaeneus marmoratus Van Duzee, 1892 [SYNONYM SUBSPECIES 303350:BQ47X nidx=null parent=8RKL2]
Eutettix (Eutettix) subaeneus querci
 - Eutettix (Eutettix) subaeneus querci Gillette & Baker, 1895 [SYNONYM SUBSPECIES 301819:BQ483 nidx=null parent=8RPC8]
 + Eutettix (Eutettix) subaeneus querci Gillette & Baker, 1895 [SYNONYM SUBSPECIES 303350:BQ482 nidx=null parent=8RPC8]
Eutettix (Eutettix) subaeneus slossoni
 - Eutettix (Eutettix) subaeneus slossoni Van Duzee, 1894 [SYNONYM SUBSPECIES 301819:BQ485 nidx=null parent=8RKLW]
 + Eutettix (Eutettix) subaeneus slossoni Van Duzee, 1894 [SYNONYM SUBSPECIES 303350:BQ484 nidx=null parent=8RKLW]
Eutettix (Eutettix) subaeneus southwicki
 - Eutettix (Eutettix) subaeneus southwicki Van Duzee, 1894 [SYNONYM SUBSPECIES 301819:BQ487 nidx=null parent=8RKLX]
 + Eutettix (Eutettix) subaeneus southwicki Van Duzee, 1894 [SYNONYM SUBSPECIES 303350:BQ486 nidx=null parent=8RKLX]
Eutettix (Eutettix) subaeneus subaeneus
 - Eutettix (Eutettix) subaeneus subaeneus (Van Duzee, 1890) [SYNONYM SUBSPECIES 301819:BQ489 nidx=null parent=8RKM3]
 + Eutettix (Eutettix) subaeneus subaeneus (Van Duzee, 1890) [SYNONYM SUBSPECIES 303350:BQ488 nidx=null parent=8RKM3]
Exodictyon incrassatum
 - Exodictyon incrassatum (Mitt.) Cardot [ACCEPTED SPECIES 301819:6HMVH nidx=null]
 + Exodictyon incrassatum (Mitt.) Cardot ex Paris [ACCEPTED SPECIES 303350:CJ3FK nidx=null]
Farcimen auriculatum clenchi
 - Farcimen auriculatum clenchi A. d'Orbigny, 1842 [ACCEPTED SUBSPECIES 301819:7TV9R nidx=null]
 + Farcimen auriculatum clenchi C. de la Torre & Bartsch, 1942 [ACCEPTED SUBSPECIES 303350:CHZM4 nidx=null]
Farcimen auriculatum senectum
 - Farcimen auriculatum senectum A. d'Orbigny, 1842 [ACCEPTED SUBSPECIES 301819:7TV9S nidx=null]
 + Farcimen auriculatum senectum C. de la Torre & Bartsch, 1942 [ACCEPTED SUBSPECIES 303350:CHZM5 nidx=null]
Fesandella (Fesandella) perpusilla
 - Fesandella (Fesandella) perpusilla (Grateloup, 1827) [SYNONYM SPECIES 301819:7RC33 nidx=null parent=7RC4K]
 + Fesandella (Fesandella) perpusilla (Grateloup, 1828) [SYNONYM SPECIES 303350:6HRMD nidx=null parent=7RC4K]
Fidena (Fidena) castanea
 - Fidena (Fidena) castanea (Perty, 1833) [ACCEPTED SPECIES 301819:8C5LK nidx=null]
 + Fidena (Fidena) castanea (Perty, 1833) [ACCEPTED SPECIES 303350:6HZGV nidx=null]
Filchneria mongoliga
 - Filchneria mongoliga [SYNONYM SPECIES 301819:8NH4S nidx=null parent=6J24D]
 + Filchneria mongoliga Klapálek, 1901 [SYNONYM SPECIES 303350:CJ279 nidx=null parent=6J24D]
Filchneria shobhaae
 - Filchneria shobhaae [SYNONYM SPECIES 301819:BWQ9L nidx=null parent=8NHDD]
 + Filchneria shobhaae (Singh & Ghosh, 1969) [SYNONYM SPECIES 303350:CJ27B nidx=null parent=8NHDD]
Fontinalis antipyretica var. pseudosquamosa
 - Fontinalis antipyretica var. pseudosquamosa Cardot ex H.A. Möller [SYNONYM VARIETY 301819:9T9DN nidx=null parent=6JDKW]
 + Fontinalis antipyretica var. pseudosquamosa Cardot ex H.A. Möller [SYNONYM VARIETY 303350:CJ2JV nidx=null parent=6JDKW]
Fossarus (Isapis) anomala
 - Fossarus (Isapis) anomala (C. B. Admas, 1850) [SYNONYM SPECIES 301819:C4NPP nidx=null parent=3Q6VJ]
 + Fossarus (Isapis) anomala (C. B. Adams, 1850) [SYNONYM SPECIES 303350:CJ2NV nidx=null parent=3Q6VJ]
Fossombronia wondraczekii
 - Fossombronia wondraczekii (Corda) Dumort. ex Lindb. [ACCEPTED SPECIES 301819:6JKDZ nidx=null]
 + Fossombronia wondraczekii (Corda) Dumort. ex Lindb. [ACCEPTED SPECIES 303350:CJ2NY nidx=null]
Fuhrmannetta bucerotidarum
 - Fuhrmannetta bucerotidarum (Joyeux & Baer, 1928) Movsesyan, 2003 [ACCEPTED SPECIES 301819:BSB43 nidx=null]
 + Fuhrmannetta bucerotidarum Joyeux & Baer, 1928 [ACCEPTED SPECIES 303350:CJ2YT nidx=null]
Fuhrmannetta lophoceri
 - Fuhrmannetta lophoceri (Ortlepp, 1964) Movsesyan, 1966 [ACCEPTED SPECIES 301819:BSB46 nidx=null]
 + Fuhrmannetta lophoceri Ortlepp, 1964 [ACCEPTED SPECIES 303350:CJ2YV nidx=null]
Fuhrmannetta vandenbrandeni
 - Fuhrmannetta vandenbrandeni (Baylis, 1940) Movsesyan, 1966 [ACCEPTED SPECIES 301819:BSB49 nidx=null]
 + Fuhrmannetta vandenbrandeni Baylis, 1940 [ACCEPTED SPECIES 303350:CJ2YW nidx=null]
Fulvia fragilis congoensis
 - Fulvia fragilis congoensis Cosel, 1995 [ACCEPTED SUBSPECIES 301819:7TVFD nidx=null]
 + Fulvia fragilis congoensis Cosel, 1995 [SYNONYM SUBSPECIES 303350:5HDQP nidx=null parent=6K3WF]
Funaria obtusifolia
 - Funaria obtusifolia (Hook. f.) Broth. [AMBIGUOUS_SYNONYM SPECIES 301819:9S5QN nidx=null parent=6FHMM]
 + Funaria obtusifolia (Hook. f.) Kindb. [AMBIGUOUS_SYNONYM SPECIES 303350:CJ32S nidx=null parent=6FHMM]
Fungivora lateralis
 - Fungivora lateralis Santos Abreu, 1920 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JR3V nidx=null]
 + Fungivora lateralis Santos Abreu, 1920 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3VRL nidx=null]
Fusus lavatus
 - Fusus lavatus Basterot, 1825 [SYNONYM SPECIES 301819:BH52D nidx=null parent=48GMY]
 + Fusus lavatus (Solander, 1766) [SYNONYM SPECIES 303350:CJ393 nidx=null parent=48GMY]
Gadila striata
 - Gadila striata (Pilsbry & Sharp, 1898) [ACCEPTED SPECIES 301819:6K6L7 nidx=null]
 + Gadila striata (Dall, 1898) [ACCEPTED SPECIES 303350:CJ3B4 nidx=null]
Galumna (Galumna) lyrica
 - Galumna (Galumna) lyrica (Jacot, 1935) [ACCEPTED SPECIES 301819:8SZJN nidx=null]
 + Galumna (Galumna) lyrica (Jacot, 1935) [ACCEPTED SPECIES 303350:3F79R nidx=null]
Galumna (Neogalumna) araujoi
 - Galumna (Neogalumna) araujoi Pérez-Íñigo & Baggio, 1994 [ACCEPTED SPECIES 301819:8SZJ8 nidx=null]
 + Galumna (Neogalumna) araujoi Pérez-Íñigo & Baggio, 1994 [ACCEPTED SPECIES 303350:3F772 nidx=null]
Geocoris (Geocoris) ater
 - Geocoris (Geocoris) ater (Fabricius, 1787) [ACCEPTED SPECIES 301819:C9SYR nidx=null]
 + Geocoris (Geocoris) ater (Fabricius, 1787) [ACCEPTED SPECIES 303350:8Q6VV nidx=null]
Gibbula (Phorcus)
 - Gibbula (Phorcus) [SYNONYM SUBGENUS 301819:BSCB4 nidx=null parent=7PCGL]
 + Gibbula (Phorcus) Risso, 1826 [SYNONYM SUBGENUS 303350:CJ35Y nidx=null parent=7PCGL]
Gigaspermum breutelii
 - Gigaspermum breutelii (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9S5Y6 nidx=null parent=6KFQ2]
 + Gigaspermum breutelii (Müll. Hal.) Müll. Hal. [SYNONYM SPECIES 303350:CJ37Z nidx=null parent=6KFQ2]
Gigaspermum imbricatum
 - Gigaspermum imbricatum (Mitt.) Paris [SYNONYM SPECIES 301819:9S5Y7 nidx=null parent=3W73M]
 + Gigaspermum imbricatum (Mitt.) Kindb. [SYNONYM SPECIES 303350:CJ382 nidx=null parent=3W73M]
Gigaspermum tumidum
 - Gigaspermum tumidum (Mitt.) Lindb. ex Paris [SYNONYM SPECIES 301819:9S5Y9 nidx=null parent=4KC3X]
 + Gigaspermum tumidum (Mitt.) Kindb. [SYNONYM SPECIES 303350:CJ383 nidx=null parent=4KC3X]
Gireoudia plebeja
 - Gireoudia plebeja (Liebm.) Klotzsch [SYNONYM SPECIES 301819:7WBJ8 nidx=null parent=7SGZH]
 + Gireoudia plebeja (Liebm.) Klotzsch [SYNONYM SPECIES 303350:3G3S7 nidx=null parent=7SGZH]
Gorgonia (Litigorgia) adamsii
 - Gorgonia (Litigorgia) adamsii Verrill, 1868 [SYNONYM SPECIES 301819:CH2W8 nidx=null parent=4BW4Z]
 + Gorgonia (Litigorgia) adamsii Verrill, 1868 [SYNONYM SPECIES 303350:CJ2V6 nidx=null parent=4BW4Z]
Gorgonocephalus linckii
 - Gorgonocephalus linckii Lyman, 1882 [SYNONYM SPECIES 301819:3H385 nidx=null parent=3H37Q]
 + Gorgonocephalus linckii (Müller & Troschel, 1842) [SYNONYM SPECIES 303350:CJ2V9 nidx=null parent=3H37Q]
Grapse albolineatus
 - Grapse albolineatus Latreille in Milbert, 1812 [SYNONYM SPECIES 301819:CDBK2 nidx=null parent=6L4W5]
 + Grapse albolineatus Latreille in Milbert, 1812 [SYNONYM SPECIES 303350:CJ363 nidx=null parent=6L4W5]
Greenidea (Greenidea) schimae
 - Greenidea (Greenidea) schimae [ACCEPTED SPECIES 301819:3HBZJ nidx=null]
 + Greenidea (Greenidea) schimae Takahashi, 1929 [ACCEPTED SPECIES 303350:CJ387 nidx=null]
Greenidea (Metagreenidea) schimae
 - Greenidea (Metagreenidea) schimae [SYNONYM SPECIES 301819:C79KC nidx=null parent=3HBZJ]
 + Greenidea (Metagreenidea) schimae Takahashi, 1929 [SYNONYM SPECIES 303350:CJ386 nidx=null parent=CJ387]
Greenidea schimae
 - Greenidea schimae [SYNONYM SPECIES 301819:C79KD nidx=null parent=3HBZJ]
 + Greenidea schimae Takahashi, 1929 [SYNONYM SPECIES 303350:CJ385 nidx=null parent=CJ387]
Grimaldia hemisphaerica
 - Grimaldia hemisphaerica (L.) Lindenb. [SYNONYM SPECIES 301819:9MPDT nidx=null parent=6X4VN]
 + Grimaldia hemisphaerica (L.) D. Dietr. [SYNONYM SPECIES 303350:CJ3BJ nidx=null parent=6X4VN]
Grimmia gracilis
 - Grimmia gracilis Schleich. ex Schwägr. [AMBIGUOUS_SYNONYM SPECIES 301819:9K7N3 nidx=null parent=4V8ZS]
 + Grimmia gracilis Schleich. ex Schwägr. [AMBIGUOUS_SYNONYM SPECIES 303350:CJ3BQ nidx=null parent=4V8ZS]
Grimmia immersoleucophaea
 - Grimmia immersoleucophaea (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9LHFM nidx=null parent=6L4QP]
 + Grimmia immersoleucophaea (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CJ3BS nidx=null parent=6L4QP]
Grimmia orbicularis
 - Grimmia orbicularis Bruch ex Wilson [ACCEPTED SPECIES 301819:9K7NH nidx=null]
 + Grimmia orbicularis Bruch ex Wilson [ACCEPTED SPECIES 303350:6KT2G nidx=null]
Grimmia praemorsa
 - Grimmia praemorsa (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9S6NF nidx=null parent=9SWVM]
 + Grimmia praemorsa (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CJ3BY nidx=null parent=9SWVM]
Gryllacris (Gryllacris) sirambeica litoralis
 - Gryllacris (Gryllacris) sirambeica litoralis Karny, 1930 [ACCEPTED SUBSPECIES 301819:8PM2S nidx=null]
 + Gryllacris (Gryllacris) sirambeica litoralis Karny, 1930 [ACCEPTED SUBSPECIES 303350:5HJYZ nidx=null]
Gryllacris ceticulata
 - Gryllacris ceticulata [SYNONYM SPECIES 301819:8PBJL nidx=null parent=8Q686]
 + Gryllacris ceticulata (Brunner von Wattenwyl, 1888) [SYNONYM SPECIES 303350:3HFLC nidx=null parent=8Q686]
Gryllacris masculipennis
 - Gryllacris masculipennis [SYNONYM SPECIES 301819:8PZ72 nidx=null parent=7K3QJ]
 + Gryllacris masculipennis (Stål, 1877) [SYNONYM SPECIES 303350:CJ3DY nidx=null parent=7K3QJ]
Gryllacris nigratae
 - Gryllacris nigratae [SYNONYM SPECIES 301819:8PBMY nidx=null parent=5J9GL]
 + Gryllacris nigratae (Brunner von Wattenwyl, 1888) [SYNONYM SPECIES 303350:3HFTS nidx=null parent=5J9GL]
Gryllodes laplatae
 - Gryllodes laplatae [SYNONYM SPECIES 301819:8PBQZ nidx=null parent=43KXR]
 + Gryllodes laplatae (Saussure, 1874) [SYNONYM SPECIES 303350:3HG5Q nidx=null parent=43KXR]
Gryllulus algericus
 - Gryllulus algericus [SYNONYM SPECIES 301819:8PZ8Y nidx=null parent=7KD34]
 + Gryllulus algericus (Saussure, 1877) [SYNONYM SPECIES 303350:CJ3FQ nidx=null parent=7KD34]
Gryllus (Gryllus) assimilis
 - Gryllus (Gryllus) assimilis (Fabricius, 1775) [ACCEPTED SPECIES 301819:C4ZD2 nidx=null]
 + Gryllus (Gryllus) assimilis (Fabricius, 1775) [ACCEPTED SPECIES 303350:CJ3FY nidx=null]
Gryllus algericus
 - Gryllus algericus [SYNONYM SPECIES 301819:8PZBN nidx=null parent=7KD34]
 + Gryllus algericus (Saussure, 1877) [SYNONYM SPECIES 303350:CJ3GF nidx=null parent=7KD34]
Gryllus algerius
 - Gryllus algerius [SYNONYM SPECIES 301819:8PZBP nidx=null parent=7KD34]
 + Gryllus algerius (Saussure, 1877) [SYNONYM SPECIES 303350:CJ3GG nidx=null parent=7KD34]
Gryllus galapagensis
 - Gryllus galapagensis [SYNONYM SPECIES 301819:8PZC7 nidx=null parent=3HGLS]
 + Gryllus galapagensis Scudder, 1893 [SYNONYM SPECIES 303350:CJ3GM nidx=null parent=3HGLS]
Gymnostomum conicum
 - Gymnostomum conicum Schleich. ex Schwägr. [SYNONYM SPECIES 301819:9S6Z4 nidx=null parent=9MVXS]
 + Gymnostomum conicum Schleich. ex Schwägr. [SYNONYM SPECIES 303350:CJ3QH nidx=null parent=9MVXS]
Gymnostomum socotranum
 - Gymnostomum socotranum (Mitt.) Paris [SYNONYM SPECIES 301819:9S74Z nidx=null parent=5BWXT]
 + Gymnostomum socotranum (Mitt.) Kindb. [SYNONYM SPECIES 303350:CJ3QJ nidx=null parent=5BWXT]
Gymnostomum venezuelense
 - Gymnostomum venezuelense (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9S75W nidx=null parent=9LMBR]
 + Gymnostomum venezuelense (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CJ3QK nidx=null parent=9LMBR]
Gyraulus
 - Gyraulus Agassiz, 1837 [ACCEPTED GENUS 301819:CFDXW nidx=null]
 + Gyraulus Charpentier, 1837 [ACCEPTED GENUS 303350:7P4N5 nidx=null]
Gyraulus (Gyraulus) trochiformis kleini
 - Gyraulus (Gyraulus) trochiformis kleini Gottschick & Wenz, 1916 [SYNONYM SUBSPECIES 301819:CH3TQ nidx=null parent=3HYKJ]
 + Gyraulus (Gyraulus) trochiformis kleini Gottschick & Wenz, 1916 [SYNONYM SUBSPECIES 303350:CJ3T7 nidx=null parent=3HYKJ]
Gyrostoma (Stoichactis) helianthus
 - Gyrostoma (Stoichactis) helianthus (Hemprich & Ehrenberg in Ehrenberg, 1834) [SYNONYM SPECIES 301819:CB2SD nidx=null parent=39X4C]
 + Gyrostoma (Stoichactis) helianthus (Hemprich & Ehrenberg in Ehrenberg, 1834) [SYNONYM SPECIES 303350:CJ3W6 nidx=null parent=39X4C]
Gyroweisia aaronis
 - Gyroweisia aaronis (Lorentz) Paris [SYNONYM SPECIES 301819:9S766 nidx=null parent=9MRDT]
 + Gyroweisia aaronis (Lorentz) Kindb. [SYNONYM SPECIES 303350:CJ3W9 nidx=null parent=9MRDT]
Gyroweisia hildebrandtii
 - Gyroweisia hildebrandtii (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9S76G nidx=null parent=3NLKX]
 + Gyroweisia hildebrandtii (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CJ3WB nidx=null parent=3NLKX]
Gyroweisia mosis
 - Gyroweisia mosis (Lorentz) Paris [SYNONYM SPECIES 301819:9S76L nidx=null parent=6KVJS]
 + Gyroweisia mosis (Lorentz) Kindb. [SYNONYM SPECIES 303350:CJ3WC nidx=null parent=6KVJS]
Gyroweisia tophicola
 - Gyroweisia tophicola (Müll. Hal.) Paris [SYNONYM SPECIES 301819:9S76S nidx=null parent=9LMBR]
 + Gyroweisia tophicola (Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CJ3WD nidx=null parent=9LMBR]
Hadenoecus opilionoides
 - Hadenoecus opilionoides [SYNONYM SPECIES 301819:8PZFP nidx=null parent=7JTM6]
 + Hadenoecus opilionoides Hubbell, 1978 [SYNONYM SPECIES 303350:CJ3ZL nidx=null parent=7JTM6]
Haematopota montium
 - Haematopota montium Szilády, 1926 [SYNONYM SPECIES 301819:8FP75 nidx=null parent=6L947]
 + Haematopota montium Szilády, 1926 [SYNONYM SPECIES 303350:3J8PD nidx=null parent=6L947]
Halectinosoma curticorne
 - Halectinosoma curticorne (Boeck, 1872) [ACCEPTED SPECIES 301819:9G4XN nidx=null]
 + Halectinosoma curticorne (Boeck, 1873) [ACCEPTED SPECIES 303350:3JB8H nidx=null]
Halobotrys
 - Halobotrys Carus, 1885 [SYNONYM GENUS 301819:BDX5P nidx=null parent=7NTLN]
 + Halobotrys de Filippi, 1866 [SYNONYM GENUS 303350:CJ4MG nidx=null parent=7NTLN]
Halopteris sibogae
 - Halopteris sibogae Billard, 1913 [SYNONYM SPECIES 301819:8SZP8 nidx=null parent=8TG59]
 + Halopteris sibogae (Billard, 1913) [SYNONYM SPECIES 303350:CJ4NV nidx=null parent=8TG59]
Halybothrys
 - Halybothrys Bedot, 1910 [SYNONYM GENUS 301819:BDX5V nidx=null parent=7NTLN]
 + Halybothrys Filippi, 1866 [SYNONYM GENUS 303350:CJ4QW nidx=null parent=7NTLN]
Haphsa crassa
 - Haphsa crassa Distant, 1905 [SYNONYM SPECIES 301819:CFXHQ nidx=null parent=3Z32C]
 + Haphsa crassa Distant, 1905 [SYNONYM SPECIES 303350:CJ4VV nidx=null parent=3Z32C]
Haplothrips (Trybomiella) ramakrishnai
 - Haplothrips (Trybomiella) ramakrishnai Karny, 1926 [ACCEPTED SPECIES 301819:CDG6S nidx=null]
 + Haplothrips (Trybomiella) ramakrishnai Karny, 1926 [ACCEPTED SPECIES 303350:CJ53P nidx=null]
Haplotropis netmongolensis
 - Haplotropis netmongolensis [SYNONYM SPECIES 301819:8PZG5 nidx=null parent=6LCKG]
 + Haplotropis netmongolensis Jin, 1994 [SYNONYM SPECIES 303350:CJ549 nidx=null parent=6LCKG]
Happiella (Prohappia)
 - Happiella (Prohappia) Thiele, 1927 [SYNONYM SUBGENUS 301819:C9Z3Z nidx=null parent=7P4SJ]
 + Happiella (Prohappia) Thiele, 1927 [SYNONYM SUBGENUS 303350:CJ54D nidx=null parent=7P4SJ]
Hardya (Hardya) melanopsis
 - Hardya (Hardya) melanopsis (Hardy, 1850) [SYNONYM SPECIES 301819:CFY2X nidx=null parent=9K89T]
 + Hardya (Hardya) melanopsis (Hardy, 1850) [SYNONYM SPECIES 303350:3JQPP nidx=null parent=9K89T]
Harmothoe (Evarnella) impar notialis
 - Harmothoe (Evarnella) impar notialis Monro, 1930 [SYNONYM SUBSPECIES 301819:CFY34 nidx=null parent=3JRGB]
 + Harmothoe (Evarnella) impar notialis Monro, 1930 [SYNONYM SUBSPECIES 303350:CJ54X nidx=null parent=3JRGB]
Harpidium exannulatum var. falcatum
 - Harpidium exannulatum var. falcatum Sanio ex Lange & C.E.O. Jensen [SYNONYM VARIETY 301819:9T9N6 nidx=null parent=7G65W]
 + Harpidium exannulatum var. falcatum Sanio ex Lange & C.E.O. Jensen [SYNONYM VARIETY 303350:CJ3JN nidx=null parent=7G65W]
Hedotettix burri
 - Hedotettix burri [SYNONYM SPECIES 301819:8PC2P nidx=null parent=4DF4X]
 + Hedotettix burri (Hancock, 1900) [SYNONYM SPECIES 303350:3JZGK nidx=null parent=4DF4X]
Hedwigia emodica
 - Hedwigia emodica Hampe ex Müll. Hal. [ACCEPTED SPECIES 301819:9LK5N nidx=null]
 + Hedwigia emodica Hampe ex Müll. Hal. [ACCEPTED SPECIES 303350:CJ3P3 nidx=null]
Helicodontium pseudolimnobium
 - Helicodontium pseudolimnobium (Müll. Hal.) Paris [ACCEPTED SPECIES 301819:3K87V nidx=null]
 + Helicodontium pseudolimnobium (Müll. Hal.) Kindb. [ACCEPTED SPECIES 303350:CJ3VM nidx=null]
Helicostyla (Leytia)
 - Helicostyla (Leytia) Pilsbry, 1891 [SYNONYM SUBGENUS 301819:CGWZ9 nidx=null parent=7P7FV]
 + Helicostyla (Leytia) Pilsbry, 1891 [SYNONYM SUBGENUS 303350:CHWXG nidx=null parent=7P7FV]
Helix darondeauii
 - Helix darondeauii Souleyet, 1842 [SYNONYM SPECIES 301819:8HVFV nidx=null parent=7RNL9]
 + Helix darondeauii Souleyet, 1842 [SYNONYM SPECIES 303350:7RL78 nidx=null parent=7RNL9]
Helomyza fasciata
 - Helomyza fasciata Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JR6B nidx=null]
 + Helomyza fasciata Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3VX6 nidx=null]
Helomyza robusta
 - Helomyza robusta Walker, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JR6F nidx=null]
 + Helomyza robusta Walker, 1858 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3VX7 nidx=null]
Helophilus (Helophilus) zodinus
 - Helophilus (Helophilus) zodinus Matsumura, 1931 [ACCEPTED SPECIES 301819:CFX4B nidx=null]
 + Helophilus (Helophilus) zodinus Matsumura, 1931 [ACCEPTED SPECIES 303350:CJ4JC nidx=null]
Henlea tolli
 - Henlea tolli Michaelsen, 1903 [ACCEPTED SPECIES 301819:852S5 nidx=null]
 + Henlea tolli Michaelsen, 1901 [ACCEPTED SPECIES 303350:CJ52Y nidx=null]
Hercostomus (Hercostomus) conglomeratus
 - Hercostomus (Hercostomus) conglomeratus Wei & Song, 2006 [SYNONYM SPECIES 301819:8CBB7 nidx=null parent=8CBDR]
 + Hercostomus (Hercostomus) conglomeratus Wei & Song, 2006 [SYNONYM SPECIES 303350:92SDT nidx=null parent=8CBDR]
Hercostomus (Hercostomus) cyphus
 - Hercostomus (Hercostomus) cyphus Wei & Song, 2006 [SYNONYM SPECIES 301819:92SDX nidx=null parent=8CBFL]
 + Hercostomus (Hercostomus) cyphus Wei & Song, 2006 [SYNONYM SPECIES 303350:8CBBQ nidx=null parent=8CBFL]
Hercostomus (Hercostomus) formosus
 - Hercostomus (Hercostomus) formosus Becker, 1917 [ACCEPTED SPECIES 301819:C7CFT nidx=null]
 + Hercostomus (Hercostomus) formosus Becker, 1917 [ACCEPTED SPECIES 303350:CJ55D nidx=null]
Hercostomus (Hercostomus) hilarosus
 - Hercostomus (Hercostomus) hilarosus Wei & Song, 2006 [SYNONYM SPECIES 301819:92SF4 nidx=null parent=8CBDR]
 + Hercostomus (Hercostomus) hilarosus Wei & Song, 2006 [SYNONYM SPECIES 303350:8CBD6 nidx=null parent=8CBDR]
Heriades copeticus
 - Heriades copeticus Morawitz, 1891 [SYNONYM SPECIES 301819:CFY4R nidx=null parent=3KYTC]
 + Heriades copeticus Morawitz, 1891 [SYNONYM SPECIES 303350:CJ568 nidx=null parent=3KYTC]
Hermes (Fumiconus)
 - Hermes (Fumiconus) da Motta, 1991 [SYNONYM SUBGENUS 301819:CD5CC nidx=null parent=7P26Q]
 + Hermes (Fumiconus) da Motta, 1991 [SYNONYM SUBGENUS 303350:CHYBW nidx=null parent=7P26Q]
Hesperotettix nevadensis terminus
 - Hesperotettix nevadensis terminus [SYNONYM SUBSPECIES 301819:8PFDS nidx=null parent=5HNWL]
 + Hesperotettix nevadensis terminus Hebard, 1918 [SYNONYM SUBSPECIES 303350:CJ5F9 nidx=null parent=5HNWL]
Heterogryllus darienicus
 - Heterogryllus darienicus [SYNONYM SPECIES 301819:8PC52 nidx=null parent=9D7V]
 + Heterogryllus darienicus (Giglio-Tos, 1897) [SYNONYM SPECIES 303350:3L9SH nidx=null parent=9D7V]
Hieroglyphus nigro-repletus
 - Hieroglyphus nigro-repletus [SYNONYM SPECIES 301819:8PC6D nidx=null parent=3LVQV]
 + Hieroglyphus nigro-repletus Bolívar, 1912 [SYNONYM SPECIES 303350:CJ3ZW nidx=null parent=3LVQV]
Hilethera balucha
 - Hilethera balucha [SYNONYM SPECIES 301819:8PZHZ nidx=null parent=3LWZY]
 + Hilethera balucha Bughio, Sultana & Wagan, 2012 [SYNONYM SPECIES 303350:CJ47S nidx=null parent=3LWZY]
Hipponix benthophilum
 - Hipponix benthophilum [SYNONYM SPECIES 301819:C5G4H nidx=null parent=3M2DB]
 + Hipponix benthophilum (Dall, 1889) [SYNONYM SPECIES 303350:CJ4G9 nidx=null parent=3M2DB]
Holothuria (Semperothuria) imitans var. polymorpha
 - Holothuria (Semperothuria) imitans var. polymorpha Caso, 1962 [SYNONYM VARIETY 301819:CDFQS nidx=null parent=6LYTQ]
 + Holothuria (Semperothuria) imitans var. polymorpha Caso, 1962 [SYNONYM VARIETY 303350:CJ4SJ nidx=null parent=6LYTQ]
Holothuria (Thymiosycia) impatiens var. lutea
 - Holothuria (Thymiosycia) impatiens var. lutea Clark, 1921 [SYNONYM VARIETY 301819:CH4SG nidx=null parent=6LYV7]
 + Holothuria (Thymiosycia) impatiens var. lutea Clark, 1921 [SYNONYM VARIETY 303350:CJ4SK nidx=null parent=6LYV7]
Homalothecium tokiadense
 - Homalothecium tokiadense (Mitt.) Besch. [SYNONYM SPECIES 301819:9S7YV nidx=null parent=9VR5J]
 + Homalothecium tokiadense (Mitt.) Kindb. [SYNONYM SPECIES 303350:CJ4Z7 nidx=null parent=9VR5J]
Hoplia (Hoplia) pilifera
 - Hoplia (Hoplia) pilifera Desbrocher des Loges, 1869 [ACCEPTED SPECIES 301819:7ZNV2 nidx=null]
 + Hoplia (Hoplia) pilifera Desbrochers des Loges, 1869 [ACCEPTED SPECIES 303350:3MK99 nidx=null]
Hygrohypnum krausei
 - Hygrohypnum krausei (Macoun & Kindb.) Broth. ex Paris [SYNONYM SPECIES 301819:9S8RY nidx=null parent=3NBKB]
 + Hygrohypnum krausei (Kindb.) Broth. ex Paris [SYNONYM SPECIES 303350:CJ3RS nidx=null parent=3NBKB]
Hyla crucifera crucifera
 - Hyla crucifera crucifera Wied-Neuwied, 1838 [SYNONYM SUBSPECIES 301819:CDD3S nidx=null parent=4NH9F]
 + Hyla crucifera crucifera Wied-Neuwied, 1838 [SYNONYM SUBSPECIES 303350:CJ3TF nidx=null parent=4NH9F]
Hylocomiastrum umbratum
 - Hylocomiastrum umbratum (Hedw.) M. Fleisch. ex Broth. [ACCEPTED SPECIES 301819:9KC8T nidx=null]
 + Hylocomiastrum umbratum (Hedw.) M. Fleisch. ex Broth. [ACCEPTED SPECIES 303350:3NFZ9 nidx=null]
Hymedesmia (Ectyodesmia) mutabilis
 - Hymedesmia (Ectyodesmia) mutabilis (Topsent, 1904) [SYNONYM SPECIES 301819:CDD9T nidx=null parent=3NH7V]
 + Hymedesmia (Ectyodesmia) mutabilis (Topsent, 1904) [SYNONYM SPECIES 303350:CJ3Y6 nidx=null parent=3NH7V]
Hymenostylium annotinum
 - Hymenostylium annotinum Mitt. ex Dixon [ACCEPTED SPECIES 301819:9S8ZY nidx=null]
 + Hymenostylium annotinum Mitt. ex Dixon [ACCEPTED SPECIES 303350:CJ44Y nidx=null]
Hypnopsis
 - Hypnopsis (Kindb.) Podp. [SYNONYM GENUS 301819:9TV76 nidx=null parent=9JMF3]
 + Hypnopsis (Kindb.) Péterfi [SYNONYM GENUS 303350:CJ3WQ nidx=null parent=9JMF3]
Hypnum glaucocarpon
 - Hypnum glaucocarpon Reinw. ex Schwägr. [SYNONYM SPECIES 301819:9SB57 nidx=null parent=TCQJ]
 + Hypnum glaucocarpon Reinw. ex Schwägr. [SYNONYM SPECIES 303350:CJ4K6 nidx=null parent=TCQJ]
Hypnum kneiffii
 - Hypnum kneiffii (Schimp.) Schimp. ex Wilson [SYNONYM SPECIES 301819:9SBBL nidx=null parent=9MMBG]
 + Hypnum kneiffii (Schimp.) Schimp. ex Wilson [SYNONYM SPECIES 303350:CJ4K9 nidx=null parent=9MMBG]
Hypnum pratense
 - Hypnum pratense W.D.J. Koch ex Spruce [SYNONYM SPECIES 301819:3NT27 nidx=null parent=CC5FB]
 + Hypnum pratense W.D.J. Koch ex Spruce [SYNONYM SPECIES 303350:CJ4KM nidx=null parent=CC5FB]
Hypodistoma deerratum
 - Hypodistoma deerratum (Sluiter, 1895) [ACCEPTED SPECIES 301819:3NVHG nidx=null]
 + Hypodistoma deerratum (Sluiter, 1895) [ACCEPTED SPECIES 303350:CJ4PJ nidx=null]
Idiocerus (Idiocerus) distinguendus
 - Idiocerus (Idiocerus) distinguendus Kirschbaum, 1868 [SYNONYM SPECIES 301819:CH5GC nidx=null parent=8JYVN]
 + Idiocerus (Idiocerus) distinguendus Kirschbaum, 1868 [SYNONYM SPECIES 303350:CJ5FZ nidx=null parent=8JYVN]
Idiocerus (Idiocerus) nervatus
 - Idiocerus (Idiocerus) nervatus Van Duzee, 1894 [ACCEPTED SPECIES 301819:8JTMG nidx=null]
 + Idiocerus (Idiocerus) nervatus Van Duzee, 1894 [ACCEPTED SPECIES 303350:CJ5GD nidx=null]
Ilyanthus mitchelli
 - Ilyanthus mitchelli [SYNONYM SPECIES 301819:CH5N9 nidx=null parent=3ZXGF]
 + Ilyanthus mitchelli [SYNONYM SPECIES 303350:CJ5MX nidx=null parent=3ZXGF]
Iole
 - Iole Ortmann, 1901 [SYNONYM GENUS 301819:BF5TZ nidx=null parent=7Q4M7]
 + Iole Richardson, 1905 [SYNONYM GENUS 303350:CJ3TD nidx=null parent=BF92C]
Iophon spatulatus var. gaussi
 - Iophon spatulatus var. gaussi Hentschel, 1914 [SYNONYM VARIETY 301819:CH3TX nidx=null parent=6MX8J]
 + Iophon spatulatus var. gaussi Hentschel, 1914 [SYNONYM VARIETY 303350:CJ3TH nidx=null parent=6MX8J]
Isogenus sorpus
 - Isogenus sorpus [SYNONYM SPECIES 301819:8NGY5 nidx=null parent=4T2CZ]
 + Isogenus sorpus (Needham & Claassen, 1925) [SYNONYM SPECIES 303350:CJ4HK nidx=null parent=4T2CZ]
Isolabis voeltzkowi
 - Isolabis voeltzkowi [SYNONYM SPECIES 301819:BXVN2 nidx=null parent=42G4G]
 + Isolabis voeltzkowi (Burr, 1908) [SYNONYM SPECIES 303350:CJ4J5 nidx=null parent=42G4G]
Isoperla gortzi
 - Isoperla gortzi [SYNONYM SPECIES 301819:8N22J nidx=null parent=6MZYS]
 + Isoperla gortzi Illies, 1952 [SYNONYM SPECIES 303350:CJ4JT nidx=null parent=6MZYS]
Isoperla sibakawae
 - Isoperla sibakawae [SYNONYM SPECIES 301819:8NGYF nidx=null parent=6MZM3]
 + Isoperla sibakawae Okamoto, 1912 [SYNONYM SPECIES 303350:CJ4JW nidx=null parent=6MZM3]
Isophya caspica stshelkanovtzevi
 - Isophya caspica stshelkanovtzevi [SYNONYM SUBSPECIES 301819:8PM3H nidx=null parent=B88VY]
 + Isophya caspica stshelkanovtzevi Miram, 1938 [SYNONYM SUBSPECIES 303350:7K9L5 nidx=null parent=B88VY]
Isophya zubowskii
 - Isophya zubowskii [SYNONYM SPECIES 301819:8PCJ5 nidx=null parent=8PZMM]
 + Isophya zubowskii Bey-Bienko, 1954 [SYNONYM SPECIES 303350:3QB93 nidx=null parent=8PZMM]
Isoplastus formulosus
 - Isoplastus formulosus Skuse, 1889 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JRHJ nidx=null]
 + Isoplastus formulosus Skuse, 1889 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3W7T nidx=null]
Isoplastus paivai
 - Isoplastus paivai Kieffer, 1910 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JRHS nidx=null]
 + Isoplastus paivai Kieffer, 1910 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3W7V nidx=null]
Isopterygium pendulum
 - Isopterygium pendulum Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:3QBL2 nidx=null]
 + Isopterygium pendulum Dixon [ACCEPTED SPECIES 303350:CJ4KG nidx=null]
Janua (Dexiospira) pagenstecheri
 - Janua (Dexiospira) pagenstecheri (Quatrefages, 1866) [SYNONYM SPECIES 301819:CH54W nidx=null parent=3QLM3]
 + Janua (Dexiospira) pagenstecheri (Quatrefages, 1866) [SYNONYM SPECIES 303350:CJ557 nidx=null parent=3QLM3]
Jassus (Platymetopius) acutus
 - Jassus (Platymetopius) acutus Say, 1830 [SYNONYM SPECIES 301819:CFY8M nidx=null parent=9RK25]
 + Jassus (Platymetopius) acutus Say, 1830 [SYNONYM SPECIES 303350:CJ59M nidx=null parent=9RK25]
Jujubinus bucklandi
 - †Jujubinus bucklandi (Cossmann & Peyrot, 1917) [ACCEPTED SPECIES 301819:7RRX3 nidx=null]
 + Jujubinus bucklandi (Basterot, 1825) [ACCEPTED SPECIES 303350:CJ5F6 nidx=null]
Julus dorsovittatus
 - Julus dorsovittatus Verhoeff, 1893 [SYNONYM SPECIES 301819:CFYJ4 nidx=null parent=49CQC]
 + Julus dorsovittatus Verhoeff, 1893 [SYNONYM SPECIES 303350:CJ5FQ nidx=null parent=49CQC]
Jungermannia arbuscula
 - Jungermannia arbuscula Brid. ex Lehm. & Lindenb. [SYNONYM SPECIES 301819:9LN4B nidx=null parent=4JF94]
 + Jungermannia arbuscula Brid. ex Lehm. & Lindenb. [SYNONYM SPECIES 303350:CJ5JD nidx=null parent=4JF94]
Jungermannia immersa
 - Jungermannia immersa Ångstr. ex Hartm. [SYNONYM SPECIES 301819:9SDJW nidx=null parent=45PGB]
 + Jungermannia immersa Ångstr. ex Hartm. [SYNONYM SPECIES 303350:CJ5JR nidx=null parent=45PGB]
Jungermannia monodon
 - Jungermannia monodon Taylor ex Lehm. [SYNONYM SPECIES 301819:9LNCS nidx=null parent=32MFT]
 + Jungermannia monodon Taylor ex Lehm. [SYNONYM SPECIES 303350:CJ5JZ nidx=null parent=32MFT]
Kairos
 - Kairos Krapp-Schickel & Müller, 2011 [ACCEPTED GENUS 301819:7PLYZ nidx=null]
 + Kairos Krapp-Schickel & Müller in Lowry & Myers, 2013 [ACCEPTED GENUS 303350:CJ5TJ nidx=null]
Kairos segregans
 - Kairos segregans Krapp-Schickel & Müller, 2011 [ACCEPTED SPECIES 301819:3QYBG nidx=null]
 + Kairos segregans Krapp-Schickel & Müller in Lowry & Myers, 2013 [ACCEPTED SPECIES 303350:CJ5TK nidx=null]
Kamimuria chengtechensis
 - Kamimuria chengtechensis [SYNONYM SPECIES 301819:8NGNM nidx=null parent=8NGKJ]
 + Kamimuria chengtechensis Wu, 1935 [SYNONYM SPECIES 303350:CJ5VC nidx=null parent=8NGKJ]
Kamimuria klapalekia
 - Kamimuria klapalekia [SYNONYM SPECIES 301819:8NGLT nidx=null parent=3QZWB]
 + Kamimuria klapalekia Wu & Claassen, 1934 [SYNONYM SPECIES 303350:CJ5VD nidx=null parent=3QZWB]
Kempnyia barbiellinii
 - Kempnyia barbiellinii [SYNONYM SPECIES 301819:8N249 nidx=null parent=3R58M]
 + Kempnyia barbiellinii (Navás, 1925) [SYNONYM SPECIES 303350:3R58F nidx=null parent=3R58M]
Kennerleyia
 - Kennerleyia Dall, 1903 [SYNONYM GENUS 301819:BGH5D nidx=null parent=7PBNY]
 + Kennerleyia [SYNONYM GENUS 303350:CJ62C nidx=null parent=7PBNY]
Lachnosterna adoretoides
 - Lachnosterna adoretoides Dalle Torre, 1912 [SYNONYM SPECIES 301819:3RQ47 nidx=null parent=4V8KP]
 + Lachnosterna adoretoides Dalla Torre, 1912 [SYNONYM SPECIES 303350:CJ534 nidx=null parent=4V8KP]
Lachnosterna gracillima
 - Lachnosterna gracillima Dalle Torre, 1912 [SYNONYM SPECIES 301819:3RQ7M nidx=null parent=4H94M]
 + Lachnosterna gracillima Dalla Torre, 1912 [SYNONYM SPECIES 303350:CJ536 nidx=null parent=4H94M]
Lacuna pallidula var. patula
 - Lacuna pallidula var. patula Hanley in Thorpe, 1844 [SYNONYM VARIETY 301819:7V7K7 nidx=null parent=3RTKX]
 + Lacuna pallidula var. patula Thorpe, 1844 [SYNONYM VARIETY 303350:CJ57R nidx=null parent=3RTKX]
Lagena sulcata var. distomamargaritifera
 - Lagena sulcata var. distomamargaritifera Parker & Jones, 1865 [SYNONYM VARIETY 301819:CFYDY nidx=null parent=6VY6N]
 + Lagena sulcata var. distomamargaritifera Parker & Jones, 1865 [SYNONYM VARIETY 303350:CJ5CS nidx=null parent=6VY6N]
Lamiopsis temminckii
 - Lamiopsis temminckii () non Müller & Henle, 1839 [MISAPPLIED SPECIES 301819:CH5JQ nidx=null parent=3S26Z]
 + Lamiopsis temminckii () [MISAPPLIED SPECIES 303350:CJ5JL nidx=null parent=3S26Z]
Latrunculia (Latrunculia) magistra
 - Latrunculia (Latrunculia) magistra [ACCEPTED SPECIES 301819:9X8ZS nidx=null]
 + Latrunculia (Latrunculia) magistra Kelly & Sim-Smith, 2022 [ACCEPTED SPECIES 303350:CJ68Y nidx=null]
Laubieriopsis brevis
 - Laubieriopsis brevis (Hartman, 1967) [ACCEPTED SPECIES 301819:3SM62 nidx=null]
 + Laubieriopsis brevis (Hartman, 1965) [ACCEPTED SPECIES 303350:CJ694 nidx=null]
Leda pernula
 - Leda pernula O. F. Müller, 1776 [SYNONYM SPECIES 301819:3SWF5 nidx=null parent=74D96]
 + Leda pernula O. F. Müller, 1779 [SYNONYM SPECIES 303350:CJ6RY nidx=null parent=74D96]
Leiocopa
 - †Leiocopa Schallreuter, 1973 [ACCEPTED INFRACLASS 301819:B6MTP nidx=null]
 + Leiocopa Schallreuter, 1973 [ACCEPTED INFRAORDER 303350:CJ6W4 nidx=null]
Leionucula sublaevigata
 - †Leionucula sublaevigata (Dollfus & Dautzenberg, 1880) [ACCEPTED SPECIES 301819:BM3JV nidx=null]
 + Leionucula sublaevigata (Dollfus & Dautzenberg, 1888) [ACCEPTED SPECIES 303350:CJ6XD nidx=null]
Leiosolenus (Diberus)
 - Leiosolenus (Diberus) Dall, 1898 [SYNONYM SUBGENUS 301819:CGYBL nidx=null parent=7P74R]
 + Leiosolenus (Diberus) Dall, 1898 [SYNONYM SUBGENUS 303350:CHY8C nidx=null parent=7P74R]
Leiosolenus (Leiosolenus)
 - Leiosolenus (Leiosolenus) P. P. Carpenter, 1856 [SYNONYM SUBGENUS 301819:CH6KN nidx=null parent=7P74R]
 + Leiosolenus (Leiosolenus) P. P. Carpenter, 1856 [SYNONYM SUBGENUS 303350:CJ6LN nidx=null parent=7P74R]
Leiosporocerotaceae
 - Leiosporocerotaceae Hässel ex Ochyra [ACCEPTED FAMILY 301819:9JG3W nidx=null]
 + Leiosporocerotaceae Hässel ex Ochyra [ACCEPTED FAMILY 303350:CJ6YG nidx=null]
Lejeunea hodgsoniana
 - Lejeunea hodgsoniana Grolle ex R.J. Lewington, Bever. & M.A.M. Renner [ACCEPTED SPECIES 301819:3T3LK nidx=null]
 + Lejeunea hodgsoniana Grolle ex R.J. Lewington, Bever. & M.A.M. Renner [ACCEPTED SPECIES 303350:CJ72W nidx=null]
Lepeophtheirus salmonis salmonis
 - Lepeophtheirus salmonis salmonis (Krøyer, 1838) [ACCEPTED SUBSPECIES 301819:B766X nidx=null]
 + Lepeophtheirus salmonis salmonis (Krøyer, 1837) [ACCEPTED SUBSPECIES 303350:B766W nidx=null]
Lepidozia tumidula
 - Lepidozia tumidula Taylor ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 301819:9VC5M nidx=null parent=6PBYD]
 + Lepidozia tumidula Taylor ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 303350:CJ5LN nidx=null parent=6PBYD]
Leptis inutilis
 - Leptis inutilis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JRMR nidx=null]
 + Leptis inutilis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3WDS nidx=null]
Leptodesminae
 - Leptodesminae Brölemann, 1902 [SYNONYM SUBFAMILY 301819:BDZCP nidx=null parent=7NLQF]
 + Leptodesminae Attems, 1898 [SYNONYM SUBFAMILY 303350:CJ5WZ nidx=null parent=7NLQF]
Leptophyllum nanus acutus
 - Leptophyllum nanus acutus Attems, 1929 [SYNONYM SUBSPECIES 301819:CDJGT nidx=null parent=C9MKN]
 + Leptophyllum nanus acutus Attems, 1929 [SYNONYM SUBSPECIES 303350:CJ66H nidx=null parent=CJ2FH]
Leptura (Leptura) maculicornis
 - Leptura (Leptura) maculicornis [SYNONYM SPECIES 301819:CFZRX nidx=null parent=4CRCB]
 + Leptura (Leptura) maculicornis [SYNONYM SPECIES 303350:CJ6CC nidx=null parent=4CRCB]
Leptysma margicolis
 - Leptysma margicolis [SYNONYM SPECIES 301819:8PZRF nidx=null parent=5JBTG]
 + Leptysma margicolis Serville, 1838 [SYNONYM SPECIES 303350:CJ6HC nidx=null parent=5JBTG]
Lescuraea atrovirens
 - Lescuraea atrovirens (Dicks. ex Brid.) Kindb. [SYNONYM SPECIES 301819:9MTNH nidx=null parent=9LQRD]
 + Lescuraea atrovirens (Dicks. ex Brid.) Mönk. [SYNONYM SPECIES 303350:CJ6J9 nidx=null parent=9LQRF]
Leucobryum longifolium
 - Leucobryum longifolium Hampe [SYNONYM SPECIES 301819:9SHBM nidx=null parent=9KFBB]
 + Leucobryum longifolium Hampe ex Müll. Hal. [SYNONYM SPECIES 303350:CJ6MZ nidx=null parent=6PTHP]
Leucobryum martianum
 - Leucobryum martianum (Hornsch.) Hampe ex Müll. Hal. [ACCEPTED SPECIES 301819:9KFBJ nidx=null]
 + Leucobryum martianum (Hornsch.) Hampe ex Müll. Hal. [ACCEPTED SPECIES 303350:CJ6N2 nidx=null]
Leucophanes nicobaricum
 - Leucophanes nicobaricum Müll. Hal. [SYNONYM SPECIES 301819:9SHQC nidx=null parent=6PT39]
 + Leucophanes nicobaricum Müll. Hal. ex Gangulee [SYNONYM SPECIES 303350:CJ6S4 nidx=null parent=6PT39]
Leucophorus
 - Leucophorus Brenske, 1892 [ACCEPTED GENUS 301819:5DWQ nidx=null]
 + Leucophorus Brenske, 1894 [ACCEPTED GENUS 303350:CJ6T7 nidx=null]
Leucorhynchia rotellaeformis
 - †Leucorhynchia rotellaeformis (Grateloup, 1832) [ACCEPTED SPECIES 301819:6PTXC nidx=null]
 + Leucorhynchia rotellaeformis (Grateloup, 1828) [ACCEPTED SPECIES 303350:CJ6VG nidx=null]
Limaea
 - Limaea J. E. Gray, 1847 [SYNONYM GENUS 301819:BGHVH nidx=null parent=7P7HP]
 + Limaea [SYNONYM GENUS 303350:CJ7CM nidx=null parent=7P7HP]
Limopsis cristata cristata
 - Limopsis cristata cristata Jeffreys, 1876 [ACCEPTED SUBSPECIES 301819:8SY7X nidx=null]
 + Limopsis cristata cristata Jeffreys, 1876 [SYNONYM SUBSPECIES 303350:5JDBJ nidx=null parent=CHR3T]
Limosina (Limosina) bracata
 - Limosina (Limosina) bracata Collin, 1912 [ACCEPTED SPECIES 301819:BZBF7 nidx=null]
 + Limosina (Limosina) bracata Collin, 1912 [ACCEPTED SPECIES 303350:CJ5WY nidx=null]
Limotettix (Limotettix) striola
 - Limotettix (Limotettix) striola (Fallén, 1806) [ACCEPTED SPECIES 301819:72F9B nidx=null]
 + Limotettix (Limotettix) striola (Fallén, 1806) [ACCEPTED SPECIES 303350:CJ5ZJ nidx=null]
Limotettix (Ophiolix) cuneatus
 - Limotettix (Ophiolix) cuneatus (Sanders & DeLong, 1920) [SYNONYM SPECIES 301819:CH624 nidx=null parent=8JX9N]
 + Limotettix (Ophiolix) cuneatus (Sanders & DeLong, 1920) [SYNONYM SPECIES 303350:CJ5ZR nidx=null parent=8JX9N]
Lithoaphis lithocarpi
 - Lithoaphis lithocarpi [SYNONYM SPECIES 301819:3VHPH nidx=null parent=9H33M]
 + Lithoaphis lithocarpi (Takahashi, 1929) [SYNONYM SPECIES 303350:CJ6JZ nidx=null parent=CJ7DL]
Locusta (Rutidoderes) flavicornis
 - Locusta (Rutidoderes) flavicornis [SYNONYM SPECIES 301819:BT55C nidx=null parent=CFKNF]
 + Locusta (Rutidoderes) flavicornis (Fabricius, 1787) [SYNONYM SPECIES 303350:8PZT6 nidx=null parent=CFKNF]
Locusta gigantea
 - Locusta gigantea [SYNONYM SPECIES 301819:8PD3F nidx=null parent=4TXV5]
 + Locusta gigantea (Villers, 1789) [SYNONYM SPECIES 303350:72LGT nidx=null parent=4TXV5]
Lophocolea bidentata var. interrupta
 - Lophocolea bidentata var. interrupta Huebener ex Schiffn. [SYNONYM VARIETY 301819:9TZPX nidx=null parent=3W2YD]
 + Lophocolea bidentata var. interrupta Huebener ex Schiffn. [SYNONYM VARIETY 303350:CJ7D5 nidx=null parent=3W2YD]
Lophozia jurensis
 - Lophozia jurensis Meyl. ex Müll. Frib. [SYNONYM SPECIES 301819:9LSDX nidx=null parent=9LSG4]
 + Lophozia jurensis Meyl. ex Müll. Frib. [SYNONYM SPECIES 303350:CJ7K4 nidx=null parent=9LSG4]
Lovenella chiquitita
 - Lovenella chiquitita Millard, 1959 [SYNONYM SPECIES 301819:3W8FP nidx=null parent=4G3WJ]
 + Lovenella chiquitita Millard, 1957 [SYNONYM SPECIES 303350:CJ7NC nidx=null parent=CJBDQ]
Lygaeus (Lygaeus) pulchellus
 - Lygaeus (Lygaeus) pulchellus Fabricius, 1794 [SYNONYM SPECIES 301819:CH5XM nidx=null parent=74GFG]
 + Lygaeus (Lygaeus) pulchellus Fabricius, 1794 [SYNONYM SPECIES 303350:CJ5X7 nidx=null parent=74GFG]
Lygaeus (Plociomera) sylvestris
 - Lygaeus (Plociomera) sylvestris (Linnaeus, 1758) [SYNONYM SPECIES 301819:8QN7H nidx=null parent=6PZ8L]
 + Lygaeus (Plociomera) sylvestris (Linnaeus, 1758) [SYNONYM SPECIES 303350:CJ5Z4 nidx=null parent=6PZ8L]
Lymantria (Collentria) cryptocloea
 - Lymantria (Collentria) cryptocloea Collenette, 1932 [ACCEPTED SPECIES 301819:3WRP4 nidx=null]
 + Lymantria (Collentria) cryptocloea Collenette, 1932 [ACCEPTED SPECIES 303350:CJ62S nidx=null]
Lymantria (Lymantria) demotes
 - Lymantria (Lymantria) demotes Collenette, 1947 [ACCEPTED SPECIES 301819:3WRP7 nidx=null]
 + Lymantria (Lymantria) demotes Collenette, 1947 [ACCEPTED SPECIES 303350:CJ62T nidx=null]
Lymantria (Lymantria) similis
 - Lymantria (Lymantria) similis Moore, 1879 [ACCEPTED SPECIES 301819:CB6TS nidx=null]
 + Lymantria (Lymantria) similis Moore, 1879 [ACCEPTED SPECIES 303350:CJ62X nidx=null]
Lymantria (Porthetria) buruensis
 - Lymantria (Porthetria) buruensis Collenette, 1933 [ACCEPTED SPECIES 301819:3WRNT nidx=null]
 + Lymantria (Porthetria) buruensis Collenette, 1933 [ACCEPTED SPECIES 303350:CJ62Z nidx=null]
Lymantria (Porthetria) detersa
 - Lymantria (Porthetria) detersa Walker, 1865 [ACCEPTED SPECIES 301819:3WRP9 nidx=null]
 + Lymantria (Porthetria) detersa Walker, 1865 [ACCEPTED SPECIES 303350:CJ633 nidx=null]
Lymantria (Porthetria) ganara
 - Lymantria (Porthetria) ganara Moore, 1859 [ACCEPTED SPECIES 301819:CDJB5 nidx=null]
 + Lymantria (Porthetria) ganara Moore, 1859 [ACCEPTED SPECIES 303350:CJ636 nidx=null]
Lymantria (Spinotria) obsoleta
 - Lymantria (Spinotria) obsoleta Walker, 1855 [ACCEPTED SPECIES 301819:C7KGT nidx=null]
 + Lymantria (Spinotria) obsoleta Walker, 1855 [ACCEPTED SPECIES 303350:CJ639 nidx=null]
Lyperosomum amurensis
 - Lyperosomum amurensis Stscherbowitsch, 1946 [ACCEPTED SPECIES 301819:BW3S7 nidx=null]
 + Lyperosomum amurensis Shcherbovich, 1946 [SYNONYM SPECIES 303350:CJ65K nidx=null parent=CJM66]
Lyperosomum magnitestium
 - Lyperosomum magnitestium Layman, 1926 [SYNONYM SPECIES 301819:C2DXD nidx=null parent=C2CLP]
 + Lyperosomum magnitestium Layman, 1922 [SYNONYM SPECIES 303350:CJ65M nidx=null parent=CHSMV]
Lyria (Mitraelyria) beauii archeri
 - Lyria (Mitraelyria) beauii archeri (Angas, 1865) [SYNONYM SUBSPECIES 301819:7HDJB nidx=null parent=8RR8F]
 + Lyria (Mitraelyria) beauii archeri (Angas, 1865) [SYNONYM SUBSPECIES 303350:CJ663 nidx=null parent=8RR8F]
Machimus (Machimus) setiventris
 - Machimus (Machimus) setiventris Engel, 1928 [ACCEPTED SPECIES 301819:BZBJV nidx=null]
 + Machimus (Machimus) setiventris Engel, 1928 [ACCEPTED SPECIES 303350:CJ6CS nidx=null]
Macrochisma
 - Macrochisma [SYNONYM GENUS 301819:C54SH nidx=null parent=7P87J]
 + Macrochisma Gray, 1835 [SYNONYM GENUS 303350:CJ6HS nidx=null parent=7P87J]
Macrocypridoidea
 - Macrocypridoidea Mueller, 1912 [ACCEPTED SUPERFAMILY 301819:5BV nidx=null]
 + Macrocypridoidea Müller, 1912 [ACCEPTED SUPERFAMILY 303350:84JT5 nidx=null]
Macrogynoplax guyanensis
 - Macrogynoplax guyanensis [SYNONYM SPECIES 301819:8NGR2 nidx=null parent=3X5CN]
 + Macrogynoplax guyanensis Enderlein, 1909 [SYNONYM SPECIES 303350:CJ6K3 nidx=null parent=3X5CN]
Macromitrium blumei
 - Macromitrium blumei Nees ex Schwägr. [ACCEPTED SPECIES 301819:3X6BJ nidx=null]
 + Macromitrium blumei Nees ex Schwägr. [ACCEPTED SPECIES 303350:CJ6KP nidx=null]
Macromitrium cuspidatum var. gracile
 - Macromitrium cuspidatum var. gracile Dixon ex E.B. Bartram [ACCEPTED VARIETY 301819:9TZR4 nidx=null]
 + Macromitrium cuspidatum var. gracile Dixon [ACCEPTED VARIETY 303350:CJ6KQ nidx=null]
Macromitrium orthostichum
 - Macromitrium orthostichum Nees ex Schwägr. [ACCEPTED SPECIES 301819:3X6HB nidx=null]
 + Macromitrium orthostichum Nees ex Schwägr. [ACCEPTED SPECIES 303350:CJ6KT nidx=null]
Macromitrium pilicalyx
 - Macromitrium pilicalyx Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:3X6HX nidx=null]
 + Macromitrium pilicalyx Dixon ex E.B. Bartram [ACCEPTED SPECIES 303350:CJ6KX nidx=null]
Macromitrium saddleanum
 - Macromitrium saddleanum Besch. ex Müll. Hal. [ACCEPTED SPECIES 301819:9KG3T nidx=null]
 + Macromitrium saddleanum Besch. ex Müll. Hal. [ACCEPTED SPECIES 303350:CJ6KZ nidx=null]
Macrophthalmus (Chaenostoma) lisae
 - Macrophthalmus (Chaenostoma) lisae Poupin & J.M. Bouchard, 2010 [SYNONYM SPECIES 301819:7X3RM nidx=null parent=7TNQY]
 + Macrophthalmus (Chaenostoma) lisae Poupin & Bouchard, 2010 [SYNONYM SPECIES 303350:3X85P nidx=null parent=T9R9]
Macropsis rufocephalus
 - Macropsis rufocephalus Osborn, 1932 [SYNONYM SPECIES 301819:8K9XZ nidx=null parent=3X8X6]
 + Macropsis rufocephalus Osborn, 1932 [SYNONYM SPECIES 303350:8K9XY nidx=null parent=3X8X6]
Macrosteles (Erotettix) cyane
 - Macrosteles (Erotettix) cyane (Boheman, 1845) [SYNONYM SPECIES 301819:CH6PD nidx=null parent=8JW7D]
 + Macrosteles (Erotettix) cyane (Boheman, 1845) [SYNONYM SPECIES 303350:8JW7C nidx=null parent=8JW7D]
Macrosteles (Macrosteles) borealis
 - Macrosteles (Macrosteles) borealis (Dorst, 1931) [SYNONYM SPECIES 301819:8JW7Q nidx=null parent=8JW7R]
 + Macrosteles (Macrosteles) borealis (Dorst, 1931) [SYNONYM SPECIES 303350:CJ6QL nidx=null parent=8JW7R]
Macrosteles (Macrosteles) laevis
 - Macrosteles (Macrosteles) laevis (Ribaut, 1927) [SYNONYM SPECIES 301819:8JW9B nidx=null parent=8JW99]
 + Macrosteles (Macrosteles) laevis (Ribaut, 1927) [SYNONYM SPECIES 303350:CJ6QP nidx=null parent=8JW99]
Macrosteles (Macrosteles) osborni
 - Macrosteles (Macrosteles) osborni (Dorst, 1931) [SYNONYM SPECIES 301819:CDKPD nidx=null parent=8JW8W]
 + Macrosteles (Macrosteles) osborni (Dorst, 1931) [SYNONYM SPECIES 303350:CJ6QQ nidx=null parent=8JW8W]
Mactra boysii
 - Mactra boysii Montagu, 1803 [SYNONYM SPECIES 301819:3XD9K nidx=null parent=8LF6]
 + Mactra boysii Montagu, 1803 [SYNONYM SPECIES 303350:3XD9J nidx=null parent=8LF6]
Malagasacris strateira
 - Malagasacris strateira [SYNONYM SPECIES 301819:8PZXF nidx=null parent=3XLM6]
 + Malagasacris strateira Rehn, 1944 [SYNONYM SPECIES 303350:CJ75Z nidx=null parent=3XLM6]
Malleus savignyi
 - Malleus savignyi Jousseaume in E. Lamy, 1919 [SYNONYM SPECIES 301819:3XNGZ nidx=null parent=3XNGD]
 + Malleus savignyi Jousseaume, 1929 [SYNONYM SPECIES 303350:CJ78D nidx=null parent=3XNGD]
Mastigobryum denudatum
 - Mastigobryum denudatum Torr. ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 301819:9MVJ8 nidx=null parent=68FKJ]
 + Mastigobryum denudatum Torr. ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 303350:CJ8MF nidx=null parent=68FKJ]
Mastigolejeunea phaea
 - Mastigolejeunea phaea Steph. ex Schiffn. [SYNONYM SPECIES 301819:9VTF2 nidx=null parent=4ZDT7]
 + Mastigolejeunea phaea Steph. ex Schiffn. [SYNONYM SPECIES 303350:CJ8N8 nidx=null parent=4ZDT7]
Meconema variatum
 - Meconema variatum [SYNONYM SPECIES 301819:8PZYK nidx=null parent=CG23N]
 + Meconema variatum Fabricius, 1775 [SYNONYM SPECIES 303350:CJ6M8 nidx=null parent=CG23N]
Meconema varium
 - Meconema varium [SYNONYM SPECIES 301819:8PDRC nidx=null parent=CG23N]
 + Meconema varium (Fabricius, 1775) [SYNONYM SPECIES 303350:3YLJ5 nidx=null parent=CG23N]
Megarcys subtruncta
 - Megarcys subtruncta [SYNONYM SPECIES 301819:8NHDT nidx=null parent=3YX24]
 + Megarcys subtruncta Hanson, 1942 [SYNONYM SPECIES 303350:CJ745 nidx=null parent=3YX24]
Megaselia (Aphiochaeta) lanata
 - Megaselia (Aphiochaeta) lanata Robinson, 1981 [ACCEPTED SPECIES 301819:8CQW6 nidx=null]
 + Megaselia (Aphiochaeta) lanata Robinson, 1981 [ACCEPTED SPECIES 303350:3YY7K nidx=null]
Megaselia (Aphiochaeta) rotunda
 - Megaselia (Aphiochaeta) rotunda Robinson, 1981 [ACCEPTED SPECIES 301819:8CR3P nidx=null]
 + Megaselia (Aphiochaeta) rotunda Robinson, 1981 [ACCEPTED SPECIES 303350:3YYN5 nidx=null]
Meiothecium greenwoodii
 - Meiothecium greenwoodii Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:3Z3BN nidx=null]
 + Meiothecium greenwoodii Dixon ex E.B. Bartram [ACCEPTED SPECIES 303350:CJ7KH nidx=null]
Melampsalta minuto
 - Melampsalta minuto (Ollenbach, 1928) [SYNONYM SPECIES 301819:CH7KZ nidx=null parent=B6YXH]
 + Melampsalta minuto (Ollenbach, 1928) [SYNONYM SPECIES 303350:8J8RY nidx=null parent=B6YXH]
Melampus (Melampus) castaneus
 - Melampus (Melampus) castaneus Megerle von Mühlfeld, 1818 [SYNONYM SPECIES 301819:3Z574 nidx=null parent=3Z57Z]
 + Melampus (Melampus) castaneus Megerle von Mühlfeld, 1816 [SYNONYM SPECIES 303350:CJ7MG nidx=null parent=3Z57Z]
Mepachymerus (Mepachymerus) indicus
 - Mepachymerus (Mepachymerus) indicus Frey, 1961 [ACCEPTED SPECIES 301819:8CSWH nidx=null]
 + Mepachymerus (Mepachymerus) indicus Frey, 1961 [ACCEPTED SPECIES 303350:3ZT2C nidx=null]
Mepachymerus (Mepachymerus) moirangus
 - Mepachymerus (Mepachymerus) moirangus Cherian, 1973 [ACCEPTED SPECIES 301819:8CSWJ nidx=null]
 + Mepachymerus (Mepachymerus) moirangus Cherian, 1973 [ACCEPTED SPECIES 303350:3ZT2L nidx=null]
Mepachymerus (Steleocerellus) gladiolus
 - Mepachymerus (Steleocerellus) gladiolus (Becker, 1913) [ACCEPTED SPECIES 301819:8CSWL nidx=null]
 + Mepachymerus (Steleocerellus) gladiolus (Becker, 1913) [ACCEPTED SPECIES 303350:3ZT29 nidx=null]
Merceyopsis formosica
 - Merceyopsis formosica Broth. ex Sakurai [SYNONYM SPECIES 301819:9KGMS nidx=null parent=CBDDG]
 + Merceyopsis formosica Broth. ex Sakurai [SYNONYM SPECIES 303350:CJ8VH nidx=null parent=CBDDG]
Merodon (Merodon) escorialensis
 - Merodon (Merodon) escorialensis Strobl, 1909 [ACCEPTED SPECIES 301819:89F36 nidx=null]
 + Merodon (Merodon) escorialensis Strobl, 1909 [ACCEPTED SPECIES 303350:3ZVGG nidx=null]
Merodon (Merodon) haemorrhoidalis
 - Merodon (Merodon) haemorrhoidalis Sack, 1913 [ACCEPTED SPECIES 301819:8CSZ8 nidx=null]
 + Merodon (Merodon) haemorrhoidalis Sack, 1913 [ACCEPTED SPECIES 303350:3ZVH5 nidx=null]
Merodon (Merodon) longicornis
 - Merodon (Merodon) longicornis Sack, 1913 [ACCEPTED SPECIES 301819:92TNK nidx=null]
 + Merodon (Merodon) longicornis Sack, 1913 [ACCEPTED SPECIES 303350:3ZVHR nidx=null]
Merodon (Merodon) podagricus
 - Merodon (Merodon) podagricus Villeneuve, 1909 [ACCEPTED SPECIES 301819:CDP8D nidx=null]
 + Merodon (Merodon) podagricus Villeneuve, 1909 [ACCEPTED SPECIES 303350:CJ8XX nidx=null]
Merodon (Merodon) unicolor
 - Merodon (Merodon) unicolor Strobl, 1909 [ACCEPTED SPECIES 301819:8CT2Z nidx=null]
 + Merodon (Merodon) unicolor Strobl, 1909 [ACCEPTED SPECIES 303350:3ZVLT nidx=null]
Mesocyclops (Thermocyclops)
 - Mesocyclops (Thermocyclops) Kiefer, 1929 [SYNONYM SUBGENUS 301819:7ZFWG nidx=null parent=7Q4B9]
 + Mesocyclops (Thermocyclops) Kiefer, 1927 [SYNONYM SUBGENUS 303350:CJ95J nidx=null parent=7Q4B9]
Metahuntemannia smirnovi
 - Metahuntemannia smirnovi Drzycimski, 1968 [ACCEPTED SPECIES 301819:9GQK3 nidx=null]
 + Metahuntemannia smirnovi Bodin, 1968 [ACCEPTED SPECIES 303350:73CX2 nidx=null]
Metalabis saramacensis
 - Metalabis saramacensis [SYNONYM SPECIES 301819:BWTXT nidx=null parent=BXPBX]
 + Metalabis saramacensis Zacher, 1911 [SYNONYM SPECIES 303350:6RCXZ nidx=null parent=CJ7CC]
Metanipponaphis lithocarpi
 - Metanipponaphis lithocarpi [ACCEPTED SPECIES 301819:9H33M nidx=null]
 + Metanipponaphis lithocarpi (Takahashi, 1929) [ACCEPTED SPECIES 303350:CJ7DL nidx=null]
Metopolophium (Metopolophium) montanum
 - Metopolophium (Metopolophium) montanum Hille Ris Lambers, 1966 [ACCEPTED SPECIES 301819:42HCH nidx=null]
 + Metopolophium (Metopolophium) montanum Hille Ris Lambers, 1966 [ACCEPTED SPECIES 303350:CJ7RQ nidx=null]
Metrioptera (Metrioptera) hormanni
 - Metrioptera (Metrioptera) hormanni [SYNONYM SPECIES 301819:8Q243 nidx=null parent=42JFZ]
 + Metrioptera (Metrioptera) hormanni Werner, 1906 [SYNONYM SPECIES 303350:CJ7SQ nidx=null parent=42JFZ]
Metrioptera truncata
 - Metrioptera truncata [SYNONYM SPECIES 301819:8QK7N nidx=null parent=3PL8S]
 + Metrioptera truncata (Werner, 1901) [SYNONYM SPECIES 303350:CJ7SX nidx=null parent=3PL8S]
Metzgeria simplex
 - Metzgeria simplex Lorb. ex Müll. Frib. [ACCEPTED SPECIES 301819:42KFQ nidx=null]
 + Metzgeria simplex Lorb. ex Müll. Frib. [ACCEPTED SPECIES 303350:CJ7TS nidx=null]
Metzleria alpina
 - Metzleria alpina Schimp. ex Milde [SYNONYM SPECIES 301819:9SKQZ nidx=null parent=JK78]
 + Metzleria alpina Schimp. ex Milde [SYNONYM SPECIES 303350:CJ7VC nidx=null parent=JK78]
Miamyia (Miamyia) pintoi
 - Miamyia (Miamyia) pintoi Lima, 1930 [SYNONYM SPECIES 301819:42LGN nidx=null parent=8FMS9]
 + Miamyia (Miamyia) pintoi Lima, 1930 [SYNONYM SPECIES 303350:89FMK nidx=null parent=8FMS9]
Microdus liebmannii
 - Microdus liebmannii Schimp. [SYNONYM SPECIES 301819:9TXD4 nidx=null parent=6D46X]
 + Microdus liebmannii Schimp. ex Besch. [SYNONYM SPECIES 303350:CJ8M2 nidx=null parent=6D46X]
Microiulus matulicii pauperatus
 - Microiulus matulicii pauperatus Attems, 1959 [SYNONYM SUBSPECIES 301819:CH8FW nidx=null parent=849PC]
 + Microiulus matulicii pauperatus Attems, 1959 [SYNONYM SUBSPECIES 303350:CJ8NJ nidx=null parent=849PC]
Microthamnium paraphysale
 - Microthamnium paraphysale Paris [SYNONYM SPECIES 301819:9SL2S nidx=null parent=56377]
 + Microthamnium paraphysale Kindb. [SYNONYM SPECIES 303350:CJ92X nidx=null parent=56377]
Microthamnium subperspicuum
 - Microthamnium subperspicuum (Müll. Hal.) Paris [AMBIGUOUS_SYNONYM SPECIES 301819:9SL44 nidx=null parent=4STRQ]
 + Microthamnium subperspicuum (Müll. Hal.) Kindb. [AMBIGUOUS_SYNONYM SPECIES 303350:CJ92Y nidx=null parent=4STRQ]
Mirus derivatus
 - Mirus derivatus (Deshayes, 1874) [ACCEPTED SPECIES 301819:7S5Y7 nidx=null]
 + Mirus derivatus (Deshayes, 1876) [ACCEPTED SPECIES 303350:CJ9FY nidx=null]
Mniodendron camptotheca
 - Mniodendron camptotheca Duby ex Paris [ACCEPTED SPECIES 301819:9LWSB nidx=null]
 + Mniodendron camptotheca Duby ex Paris [ACCEPTED SPECIES 303350:CJ9QB nidx=null]
Mnium vallis-gratiae
 - Mnium vallis-gratiae Hampe ex Müll. Hal. [SYNONYM SPECIES 301819:9SLRK nidx=null parent=9LM96]
 + Mnium vallis-gratiae Hampe ex Müll. Hal. [SYNONYM SPECIES 303350:CJ9QN nidx=null parent=9LM96]
Modiola (Modiolaria) saucatsensis
 - Modiola (Modiolaria) saucatsensis (Cossmann, 1914) [SYNONYM SPECIES 301819:B7SMY nidx=null parent=B7TLV]
 + Modiola (Modiolaria) saucatsensis (Cossmann, 1896) [SYNONYM SPECIES 303350:CJ9R7 nidx=null parent=CJ8QK]
Modiolaria (Planimodiola) saucatsensis
 - Modiolaria (Planimodiola) saucatsensis Cossmann, 1914 [SYNONYM SPECIES 301819:B7T6C nidx=null parent=B7TLV]
 + Modiolaria (Planimodiola) saucatsensis Cossmann, 1896 [SYNONYM SPECIES 303350:CJ9SN nidx=null parent=CJ8QK]
Molge vittatus
 - Molge vittatus (Gray in Jenyns, 1835) [SYNONYM SPECIES 301819:C7PM3 nidx=null parent=6SLSK]
 + Molge vittatus (Gray in Jenyns, 1835) [SYNONYM SPECIES 303350:CJ75V nidx=null parent=6SLSK]
Molobrus fuliginosus
 - Molobrus fuliginosus Fitch, 1856 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSBK nidx=null]
 + Molobrus fuliginosus Fitch, 1856 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X5X nidx=null]
Monotis scutiformis setakanensis
 - Monotis scutiformis setakanensis Kiparisova, 1961 [SYNONYM SUBSPECIES 301819:CHN6K nidx=null parent=CH382]
 + Monotis scutiformis setakanensis Kiparisova, 1964 [SYNONYM SUBSPECIES 303350:CJLHN nidx=null parent=CJ367]
Montfortia (Hemitoma)
 - Montfortia (Hemitoma) Swainson, 1840 [SYNONYM SUBGENUS 301819:CD8QZ nidx=null parent=7P52M]
 + Montfortia (Hemitoma) Swainson, 1840 [SYNONYM SUBGENUS 303350:CJ28H nidx=null parent=7P52M]
Morsimus quadratus kastneri
 - Morsimus quadratus kastneri [SYNONYM SUBSPECIES 301819:8Q6BQ nidx=null parent=7KCVB]
 + Morsimus quadratus kastneri Beier, 1954 [SYNONYM SUBSPECIES 303350:CJ86L nidx=null parent=7KCVB]
Mulsantia blanda
 - Mulsantia blanda Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSH6 nidx=null]
 + Mulsantia blanda Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X6X nidx=null]
Mulsantia spreta
 - Mulsantia spreta Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSHV nidx=null]
 + Mulsantia spreta Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X6Z nidx=null]
Murex aranea
 - Murex aranea Blainville in Kiener, 1842 [SYNONYM SPECIES 301819:44LTL nidx=null parent=5Y2RN]
 + Murex aranea Kiener, 1842 [SYNONYM SPECIES 303350:CJ8LK nidx=null parent=5Y2RN]
Murex jani
 - Murex jani Doderlein, 1862 [SYNONYM SPECIES 301819:868CJ nidx=null parent=9F3RT]
 + Murex jani Doderlein, 1864 [SYNONYM SPECIES 303350:CJ8LQ nidx=null parent=CHZC7]
 + Murex jani Bellardi, 1873 [SYNONYM SPECIES 303350:CJ8LR nidx=null parent=CHZC7]
Murex rudis
 - Murex rudis Borson, 1921 [SYNONYM SPECIES 301819:C7TKN nidx=null parent=C7G8J]
 + Murex rudis Borson, 1821 [SYNONYM SPECIES 303350:CJ8KH nidx=null parent=C7G8J]
Muricidea blainvillei var. trophoniformis
 - Muricidea blainvillei var. trophoniformis Weinkauff, 1868 [SYNONYM VARIETY 301819:5Q7N4 nidx=null parent=44MXN]
 + Muricidea blainvillei var. trophoniformis Monterosato, 1884 [SYNONYM VARIETY 303350:CJ8MH nidx=null parent=44MXN]
Musca abrupta
 - Musca abrupta Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSHY nidx=null]
 + Musca abrupta Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X73 nidx=null]
Musca aestuans
 - Musca aestuans Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSJH nidx=null]
 + Musca aestuans Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X75 nidx=null]
Musca comio
 - Musca comio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSLZ nidx=null]
 + Musca comio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X7J nidx=null]
Musca conica
 - Musca conica Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH7H nidx=null]
 + Musca conica Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X7L nidx=null]
Musca convenio
 - Musca convenio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSMD nidx=null]
 + Musca convenio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X7N nidx=null]
Musca decore
 - Musca decore Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSMM nidx=null]
 + Musca decore Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X7P nidx=null]
Musca doclea
 - Musca doclea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSMZ nidx=null]
 + Musca doclea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X7S nidx=null]
Musca erythrocephala
 - Musca erythrocephala Fabricius, 1787 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH8D nidx=null]
 + Musca erythrocephala Fabricius, 1787 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X7X nidx=null]
Musca fimetorum
 - Musca fimetorum Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSNG nidx=null]
 + Musca fimetorum Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X82 nidx=null]
Musca flavipalpis
 - Musca flavipalpis Meigen, 1838 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSNL nidx=null]
 + Musca flavipalpis Meigen, 1838 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X83 nidx=null]
Musca gibbosa
 - Musca gibbosa Thunberg, 1789 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH8W nidx=null]
 + Musca gibbosa Thunberg, 1789 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X86 nidx=null]
Musca grisea
 - Musca grisea Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH94 nidx=null]
 + Musca grisea Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X87 nidx=null]
Musca guttata
 - Musca guttata Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSPB nidx=null]
 + Musca guttata Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X88 nidx=null]
Musca hebes
 - Musca hebes Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH98 nidx=null]
 + Musca hebes Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X8B nidx=null]
Musca helenii
 - Musca helenii Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSPK nidx=null]
 + Musca helenii Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X8C nidx=null]
Musca lincensis
 - Musca lincensis Schrank, 1776 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSQY nidx=null]
 + Musca lincensis Schrank, 1776 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X8M nidx=null]
Musca metallina
 - Musca metallina Gravenhorst, 1807 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSRP nidx=null]
 + Musca metallina Gravenhorst, 1807 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X8X nidx=null]
Musca nigripilis
 - Musca nigripilis Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSSF nidx=null]
 + Musca nigripilis Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X95 nidx=null]
Musca prodromaria
 - Musca prodromaria Panzer, 1804 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSTX nidx=null]
 + Musca prodromaria Panzer, 1804 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X97 nidx=null]
Musca prolabor
 - Musca prolabor Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSTY nidx=null]
 + Musca prolabor Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X98 nidx=null]
Musca sacalis
 - Musca sacalis Bjerkander, 1783 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSWK nidx=null]
 + Musca sacalis Bjerkander, 1783 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X99 nidx=null]
Musca terrestris
 - Musca terrestris Linnaeus, 1767 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSY2 nidx=null]
 + Musca terrestris Linnaeus, 1767 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X9B nidx=null]
Musculus saucatsensis
 - †Musculus saucatsensis (Cossmann, 1914) [ACCEPTED SPECIES 301819:B7TLV nidx=null]
 + Musculus saucatsensis (Cossmann, 1896) [ACCEPTED SPECIES 303350:CJ8QK nidx=null]
Musculus viator
 - Musculus viator (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:44QCR nidx=null]
 + Musculus viator (A. d'Orbigny, 1846) [ACCEPTED SPECIES 303350:CJ8QL nidx=null]
Mycetophila borealis
 - Mycetophila borealis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT38 nidx=null]
 + Mycetophila borealis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3X9F nidx=null]
Mycetopus ventricosus
 - Mycetopus ventricosus A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:9TJR2 nidx=null parent=44VPN]
 + Mycetopus ventricosus A. d'Orbigny, 1841 [SYNONYM SPECIES 303350:CJ8YQ nidx=null parent=44VPN]
Mydaea (Mydaria) rufisquama
 - Mydaea (Mydaria) rufisquama Schnabl, 1915 [SYNONYM SPECIES 301819:4524P nidx=null parent=8FFFR]
 + Mydaea (Mydaria) rufisquama Schnabl, 1915 [SYNONYM SPECIES 303350:88QND nidx=null parent=7BXVP]
Myiolepta luhei
 - †Myiolepta luhei Cockerell, 1910 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT5Q nidx=null]
 + Myiolepta luhei Cockerell, 1910 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XDW nidx=null]
Myiophasia solitaria
 - Myiophasia solitaria Aldrich, 1934 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT66 nidx=null]
 + Myiophasia solitaria Aldrich, 1934 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XDY nidx=null]
Myophora arvicola
 - Myophora arvicola Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT72 nidx=null]
 + Myophora arvicola Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XF9 nidx=null]
Myophora rapida
 - Myophora rapida Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT7Z nidx=null]
 + Myophora rapida Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XFQ nidx=null]
Myothyria degeerioides
 - Myothyria degeerioides Wulp, 1890 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT8F nidx=null]
 + Myothyria degeerioides Wulp, 1890 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XGC nidx=null]
Mytilaster solisianus
 - Mytilaster solisianus (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:45GCV nidx=null]
 + Mytilaster solisianus (A. d'Orbigny, 1846) [ACCEPTED SPECIES 303350:CJ9PK nidx=null]
Mytilus darwinianus
 - Mytilus darwinianus A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:45GLX nidx=null parent=MSRZ]
 + Mytilus darwinianus A. d'Orbigny, 1846 [SYNONYM SPECIES 303350:CJ9PP nidx=null parent=CHSGN]
Mytilus soleniformis
 - Mytilus soleniformis A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:45GRP nidx=null parent=655B4]
 + Mytilus soleniformis A. d'Orbigny, 1846 [SYNONYM SPECIES 303350:CJ9PR nidx=null parent=CHP6W]
Mytilus solisianus
 - Mytilus solisianus A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:45GRQ nidx=null parent=45GCV]
 + Mytilus solisianus A. d'Orbigny, 1846 [SYNONYM SPECIES 303350:CJ9PS nidx=null parent=CJ9PK]
Mytilus viator
 - Mytilus viator A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:45GSQ nidx=null parent=44QCR]
 + Mytilus viator A. d'Orbigny, 1846 [SYNONYM SPECIES 303350:CJ9PY nidx=null parent=CJ8QL]
Myzocallis corylii
 - Myzocallis corylii Goeze, 1778 [AMBIGUOUS_SYNONYM SPECIES 301819:CH9SK nidx=null parent=BWDZ4]
 + Myzocallis corylii Goeze, 1778 [AMBIGUOUS_SYNONYM SPECIES 303350:CJ9ST nidx=null parent=BWDZ4]
Nacella sagittata
 - Nacella sagittata Blainville, 1830 [SYNONYM SPECIES 301819:45JR9 nidx=null parent=5XKT2]
 + Nacella sagittata (Quoy & Gaimard, 1827) [SYNONYM SPECIES 303350:CJ9W8 nidx=null parent=5XKT2]
Nannopygia daviesi
 - Nannopygia daviesi [SYNONYM SPECIES 301819:BZJCL nidx=null parent=C3BYN]
 + Nannopygia daviesi (Srivastava, 1990) [SYNONYM SPECIES 303350:CJ7RK nidx=null parent=C3BYN]
Nassa elabrata
 - Nassa elabrata Doderlein, 1862 [SYNONYM SPECIES 301819:45QW6 nidx=null parent=45RNY]
 + Nassa elabrata Doderlein, 1864 [SYNONYM SPECIES 303350:CJ7Z2 nidx=null parent=CJ84D]
Nassa hotessieriana
 - Nassa hotessieriana A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:B7BMW nidx=null parent=4GV8J]
 + Nassa hotessieriana A. d'Orbigny, 1844 [SYNONYM SPECIES 303350:CJ7ZH nidx=null parent=CJC6X]
Nassarius elabratus
 - †Nassarius elabratus (Doderlein, 1862) [ACCEPTED SPECIES 301819:45RNY nidx=null]
 + Nassarius elabratus (Doderlein, 1864) [ACCEPTED SPECIES 303350:CJ84D nidx=null]
Nassarius hotessieri
 - Nassarius hotessieri (A. d'Orbigny, 1847) [SYNONYM SPECIES 301819:45RRN nidx=null parent=4GV8J]
 + Nassarius hotessieri (A. d'Orbigny, 1844) [SYNONYM SPECIES 303350:CJ84N nidx=null parent=CJC6X]
Nassarius hotessierianus
 - Nassarius hotessierianus (A. d'Orbigny, 1842) [SYNONYM SPECIES 301819:45RRP nidx=null parent=4GV8J]
 + Nassarius hotessierianus (A. d'Orbigny, 1844) [SYNONYM SPECIES 303350:CJ84P nidx=null parent=CJC6X]
Natica limbata
 - Natica limbata A. d'Orbigny, 1837 [ACCEPTED SPECIES 301819:45TPP nidx=null]
 + Natica limbata A. d'Orbigny, 1839 [SYNONYM SPECIES 303350:CJ865 nidx=null parent=CJ3LR]
Neckera exserta
 - Neckera exserta Hook. ex Schwägr. [SYNONYM SPECIES 301819:9SM8K nidx=null parent=45ZMY]
 + Neckera exserta Hook. ex Schwägr. [SYNONYM SPECIES 303350:CJ8MD nidx=null parent=45ZMY]
Neckera remota
 - Neckera remota Bruch & Schimp. ex Müll. Hal. [SYNONYM SPECIES 301819:9KHQT nidx=null parent=9KWNQ]
 + Neckera remota Bruch & Schimp. ex Müll. Hal. [SYNONYM SPECIES 303350:CJ8N5 nidx=null parent=9KWNQ]
Neckeropsis submarginata
 - Neckeropsis submarginata Cardot ex Touw [SYNONYM SPECIES 301819:45ZNG nidx=null parent=9WDDF]
 + Neckeropsis submarginata Cardot ex Touw [SYNONYM SPECIES 303350:CJ8N7 nidx=null parent=9WDDF]
Nemobius brasiliensis
 - Nemobius brasiliensis [SYNONYM SPECIES 301819:8Q2CQ nidx=null parent=GH5P]
 + Nemobius brasiliensis (Walker, 1869) [SYNONYM SPECIES 303350:CJ8WC nidx=null parent=C68FZ]
Nemotelus (Nemotelus) fraternus
 - Nemotelus (Nemotelus) fraternus Loew, 1846 [ACCEPTED SPECIES 301819:CH8QR nidx=null]
 + Nemotelus (Nemotelus) fraternus Loew, 1846 [ACCEPTED SPECIES 303350:CJ8YB nidx=null]
Nemotelus (Nemotelus) gracilis
 - Nemotelus (Nemotelus) gracilis Loew, 1846 [ACCEPTED SPECIES 301819:CBM7L nidx=null]
 + Nemotelus (Nemotelus) gracilis Loew, 1846 [ACCEPTED SPECIES 303350:CJ8YC nidx=null]
Nemotelus (Nemotelus) maryinellus
 - Nemotelus (Nemotelus) maryinellus Schiner, 1855 [ACCEPTED SPECIES 301819:CH8QT nidx=null]
 + Nemotelus (Nemotelus) maryinellus Schiner, 1855 [ACCEPTED SPECIES 303350:CJ8YD nidx=null]
Nemotelus rufus
 - Nemotelus rufus De Geer, 1776 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT97 nidx=null]
 + Nemotelus rufus De Geer, 1776 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XGT nidx=null]
Nemotelus sylvestris
 - Nemotelus sylvestris Müller, 1776 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT9F nidx=null]
 + Nemotelus sylvestris Müller, 1776 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XGZ nidx=null]
Nemoura lingulata
 - Nemoura lingulata [SYNONYM SPECIES 301819:8NGSB nidx=null parent=469SY]
 + Nemoura lingulata Navás, 1918 [SYNONYM SPECIES 303350:CJ8YL nidx=null parent=469SY]
Nemoura papilla
 - Nemoura papilla [AMBIGUOUS_SYNONYM SPECIES 301819:8N382 nidx=null parent=469PM]
 + Nemoura papilla Kawai, 1967 [AMBIGUOUS_SYNONYM SPECIES 303350:CJ8YP nidx=null parent=469PM]
Neoperla binodosa
 - Neoperla binodosa [SYNONYM SPECIES 301819:8N39G nidx=null parent=6V9G8]
 + Neoperla binodosa (Wu, 1973) [SYNONYM SPECIES 303350:74844 nidx=null parent=6V9G8]
Neorthacris acuticeps nilgiriensis
 - Neorthacris acuticeps nilgiriensis [SYNONYM SUBSPECIES 301819:8Q6BW nidx=null parent=7KGG8]
 + Neorthacris acuticeps nilgiriensis Uvarov, 1929 [SYNONYM SUBSPECIES 303350:CJ9FW nidx=null parent=7KGG8]
Neoxabea punctulata
 - Neoxabea punctulata [SYNONYM SPECIES 301819:8PFQP nidx=null parent=CG5T9]
 + Neoxabea punctulata (Fitch, 1856) [SYNONYM SPECIES 303350:46WHL nidx=null parent=CG5T9]
Neritopsis delphinula
 - †Neritopsis delphinula A. d'Orbigny, 1847 [ACCEPTED SPECIES 301819:B2LP4 nidx=null]
 + Neritopsis delphinula A. d'Orbigny, 1850 [ACCEPTED SPECIES 303350:CJB4V nidx=null]
Neverita (Hypterita)
 - Neverita (Hypterita) Woodring, 1957 [SYNONYM SUBGENUS 301819:CFWB4 nidx=null parent=7P5LT]
 + Neverita (Hypterita) Woodring, 1957 [SYNONYM SUBGENUS 303350:CJ3V6 nidx=null parent=7P5LT]
Nidalia moriferum
 - Nidalia moriferum Tixier-Durivault, 1954 [SYNONYM SPECIES 301819:CHBC7 nidx=null parent=4DCL6]
 + Nidalia moriferum Tixier-Durivault, 1954 [SYNONYM SPECIES 303350:CJBCM nidx=null parent=4DCL6]
Nogagus validus
 - Nogagus validus Dana, 1849-1852 [ACCEPTED SPECIES 301819:CGM8B nidx=null]
 + Nogagus validus Dana, 1853-1855 [ACCEPTED SPECIES 303350:CJLFN nidx=null]
Notiphila peregrina
 - Notiphila peregrina Wiedemann, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9V8GB nidx=null]
 + Notiphila peregrina Wiedemann, 1830 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XKK nidx=null]
Notoluponia (Notadusta)
 - Notoluponia (Notadusta) F. A. Schilder, 1935 [SYNONYM SUBGENUS 301819:CGX6M nidx=null parent=7P9XZ]
 + Notoluponia (Notadusta) F. A. Schilder, 1935 [SYNONYM SUBGENUS 303350:CHX4J nidx=null parent=7P9XZ]
Nototrivia
 - †Nototrivia F. A. Schilder, 1939 [PROVISIONALLY_ACCEPTED GENUS 301819:BGL9D nidx=null]
 + Nototrivia [ACCEPTED GENUS 303350:CJ9GP nidx=null]
Obovaria cordata
 - Obovaria cordata Rafinesque, 1820 [SYNONYM SPECIES 301819:74FBR nidx=null parent=6VRS2]
 + Obovaria cordata Rafinesque, 1820 [SYNONYM SPECIES 303350:48B4B nidx=null parent=6VRS2]
Ocenebra erinaceus elongatus
 - Ocenebra erinaceus elongatus Settepassi, 1970 [SYNONYM SUBSPECIES 301819:CG6GR nidx=null parent=48CQ8]
 + Ocenebra erinaceus elongatus Settepassi, 1970 [SYNONYM SUBSPECIES 303350:CJB6X nidx=null parent=48CQ8]
Ochtiphila albiceps
 - Ochtiphila albiceps Meigen, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9V8GW nidx=null]
 + Ochtiphila albiceps Meigen, 1830 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XLH nidx=null]
Odostomia amanda
 - Odostomia amanda Garrett, 1863 [ACCEPTED SPECIES 301819:48SNB nidx=null]
 + Odostomia amanda Garrett, 1873 [ACCEPTED SPECIES 303350:CJBKP nidx=null]
Odostomia cionelloides
 - Odostomia cionelloides Clessin, 1902 [ACCEPTED SPECIES 301819:48SR2 nidx=null]
 + Odostomia cionelloides Clessin, 1900 [ACCEPTED SPECIES 303350:CJBKR nidx=null]
Odostomia glabra
 - Odostomia glabra Clessin, 1902 [ACCEPTED SPECIES 301819:48SVB nidx=null]
 + Odostomia glabra Clessin, 1900 [ACCEPTED SPECIES 303350:CJBKT nidx=null]
Oecanthus camptulus
 - Oecanthus camptulus [SYNONYM SPECIES 301819:8Q2J4 nidx=null parent=74GSX]
 + Oecanthus camptulus Karsch, 1893 [SYNONYM SPECIES 303350:CJBNN nidx=null parent=74GSX]
Olesicoccus costalimai
 - Olesicoccus costalimai Borgmeier, 1931 [SYNONYM SPECIES 301819:6SKLW nidx=null parent=35878]
 + Olesicoccus costalimai Borgmeier, 1931 [SYNONYM SPECIES 303350:494FT nidx=null parent=35878]
Oncideres (Oncideres) gutturator
 - Oncideres (Oncideres) gutturator [AMBIGUOUS_SYNONYM SPECIES 301819:CH8SQ nidx=null parent=49GDH]
 + Oncideres (Oncideres) gutturator [AMBIGUOUS_SYNONYM SPECIES 303350:CJ925 nidx=null parent=49GDH]
Oncideres callydryas
 - Oncideres callydryas [SYNONYM SPECIES 301819:CBHPK nidx=null parent=6QLRW]
 + Oncideres callydryas [SYNONYM SPECIES 303350:CJ8ZD nidx=null parent=6QLRW]
Oncometopia (Oncometopia) obtusa funebris
 - Oncometopia (Oncometopia) obtusa funebris (Signoret, 1854) [SYNONYM SUBSPECIES 301819:CH8W9 nidx=null parent=49HWS]
 + Oncometopia (Oncometopia) obtusa funebris (Signoret, 1854) [SYNONYM SUBSPECIES 303350:CJ945 nidx=null parent=49HWS]
Onconotus motschoulskii
 - Onconotus motschoulskii [SYNONYM SPECIES 301819:8Q2LG nidx=null parent=49J45]
 + Onconotus motschoulskii Fischer von Waldheim, 1846 [SYNONYM SPECIES 303350:CJ947 nidx=null parent=49J45]
Onconotus motschoulskyi
 - Onconotus motschoulskyi [SYNONYM SPECIES 301819:8Q2LF nidx=null parent=49J45]
 + Onconotus motschoulskyi Fischer von Waldheim, 1846 [SYNONYM SPECIES 303350:CJ948 nidx=null parent=49J45]
Onesia gentilis
 - Onesia gentilis Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTGZ nidx=null]
 + Onesia gentilis Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XNS nidx=null]
Oniella excelsa
 - Oniella excelsa (Melichar, 1902) [SYNONYM SPECIES 301819:CDPJZ nidx=null parent=8JRM3]
 + Oniella excelsa (Melichar, 1902) [SYNONYM SPECIES 303350:CJ955 nidx=null parent=8JRM3]
Ophiostomum
 - Ophiostomum [ACCEPTED GENUS 301819:C2825 nidx=null]
 + Ophiostomum Creplin, 1839 [ACCEPTED GENUS 303350:CJ9GL nidx=null]
Opshomala cylindrodes
 - Opshomala cylindrodes [SYNONYM SPECIES 301819:8Q2LY nidx=null parent=4ZTF2]
 + Opshomala cylindrodes Stål, 1861 [SYNONYM SPECIES 303350:CJ9WS nidx=null parent=4ZTF2]
Opshomala marshalli
 - Opshomala marshalli [SYNONYM SPECIES 301819:8Q2M2 nidx=null parent=6ZJRR]
 + Opshomala marshalli (Bruner, 1908) [SYNONYM SPECIES 303350:CJ9WT nidx=null parent=6ZJRR]
Orbignyna (Ataxoorbignyna) pinguis
 - Orbignyna (Ataxoorbignyna) pinguis Voloshina in Akimets, 1961 [SYNONYM SPECIES 301819:CG68Z nidx=null parent=9X8H8]
 + Orbignyna (Ataxoorbignyna) pinguis Voloshina in Akimets, 1961 [SYNONYM SPECIES 303350:CJB2L nidx=null parent=9X8H8]
Orbitoides subgen. Discocyclina
 - †Orbitoides subgen. Discocyclina Gümbel, 1870 [PROVISIONALLY_ACCEPTED SUBGENUS 301819:CH2B3 nidx=null]
 + Orbitoides subgen. Discocyclina Gümbel, 1870 [PROVISIONALLY_ACCEPTED SUBGENUS 303350:CJ29R nidx=null]
Oreoweisia chilensis
 - Oreoweisia chilensis (Hampe ex Müll. Hal.) Paris [SYNONYM SPECIES 301819:74TZK nidx=null parent=9WDD8]
 + Oreoweisia chilensis (Hampe ex Müll. Hal.) Kindb. [SYNONYM SPECIES 303350:CJB9F nidx=null parent=9WDD8]
Ortalis semivitta
 - Ortalis semivitta Walker, 1865 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTKB nidx=null]
 + Ortalis semivitta Walker, 1865 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XQ4 nidx=null]
Orthacanthacris sigillata
 - Orthacanthacris sigillata [SYNONYM SPECIES 301819:BV6K4 nidx=null parent=NJNS]
 + Orthacanthacris sigillata (Bolívar, 1908) [SYNONYM SPECIES 303350:CJBJD nidx=null parent=NJNS]
Orthelimaea klinghardti
 - Orthelimaea klinghardti [SYNONYM SPECIES 301819:8Q2NR nidx=null parent=6SXMK]
 + Orthelimaea klinghardti (Krausze, 1903) [SYNONYM SPECIES 303350:CJBJP nidx=null parent=6SXMK]
Orthoptera
 - Orthoptera Latreille, 1810 [ACCEPTED ORDER 301819:B7VSM nidx=null]
 + Orthoptera Olivier, 1789 [ACCEPTED ORDER 303350:CJ9Y4 nidx=null]
Orthoptères
 - Orthoptères Latreille, 1810 [SYNONYM ORDER 301819:8PSJZ nidx=null parent=B7VSM]
 + Orthoptères Olivier, 1789 [SYNONYM ORDER 303350:CJBTT nidx=null parent=CJ9Y4]
Orthotrichum rupestre
 - Orthotrichum rupestre Schleich. ex Schwägr. [SYNONYM SPECIES 301819:759MV nidx=null parent=9LQX3]
 + Orthotrichum rupestre Schleich. ex Schwägr. [SYNONYM SPECIES 303350:CJBX2 nidx=null parent=9LQX3]
Orthotrichum subexsertum
 - Orthotrichum subexsertum Schimp. ex Müll. Hal. [ACCEPTED SPECIES 301819:9KKYP nidx=null]
 + Orthotrichum subexsertum Schimp. ex Müll. Hal. [ACCEPTED SPECIES 303350:CJBX3 nidx=null]
Oscinella (Oscinella) agrostis
 - Oscinella (Oscinella) agrostis Nartshuk, 1955 [ACCEPTED SPECIES 301819:CH934 nidx=null]
 + Oscinella (Oscinella) agrostis Nartshuk, 1955 [ACCEPTED SPECIES 303350:CJ97P nidx=null]
Ostrea hybrida
 - Ostrea hybrida Gmelin, 1791 [SYNONYM SPECIES 301819:6TD8F nidx=null parent=4NK3R]
 + Ostrea hybrida Deshayes, 1832 [SYNONYM SPECIES 303350:CJ9B6 nidx=null parent=8YJQN]
Otiorhynchus vranensis
 - Otiorhynchus vranensis Apfelbeck, 1895 [SYNONYM SPECIES 301819:CG5DY nidx=null parent=373HP]
 + Otiorhynchus vranensis Apfelbeck, 1895 [SYNONYM SPECIES 303350:CJ9DV nidx=null parent=373HP]
 + Otiorhynchus vranensis Apfelbeck, 1894 [SYNONYM SPECIES 303350:CJ9DW nidx=null parent=373HP]
Oxyrrhepes extensa
 - Oxyrrhepes extensa [SYNONYM SPECIES 301819:8PG9V nidx=null parent=4BK3L]
 + Oxyrrhepes extensa (Walker, 1859) [SYNONYM SPECIES 303350:4BK3G nidx=null parent=4BK3L]
Paekilocera
 - Paekilocera Westwood, 1841 [SYNONYM GENUS 301819:8PV8B nidx=null parent=8NXRL]
 + Paekilocera Serville, 1831 [SYNONYM GENUS 303350:CJBFQ nidx=null parent=8NXRL]
Palaeocolpodia eocenica
 - †Palaeocolpodia eocenica Meunier, 1904 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTQ7 nidx=null]
 + Palaeocolpodia eocenica Meunier, 1904 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XVF nidx=null]
Palaeocopa
 - Palaeocopa Henningsmoen, 1953 [SYNONYM SUBORDER 301819:BDYQL nidx=null parent=857WB]
 - Palaeocopa Henningsmoen, 1953 [PROVISIONALLY_ACCEPTED SUBORDER 301819:BDYQM nidx=null]
 + Palaeocopa [PROVISIONALLY_ACCEPTED SUBORDER 303350:9XCRR nidx=null]
 + Palaeocopa [SYNONYM SUBORDER 303350:CJBLF nidx=null parent=857WB]
Palaeopipiza xenos
 - †Palaeopipiza xenos Meunier, 1902 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTQD nidx=null]
 + Palaeopipiza xenos Meunier, 1902 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XVG nidx=null]
Palaeosphegina tristis
 - †Palaeosphegina tristis Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTQR nidx=null]
 + Palaeosphegina tristis Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XVH nidx=null]
Pandora (Kennerleyia)
 - Pandora (Kennerleyia) Dall, 1903 [SYNONYM SUBGENUS 301819:C54VS nidx=null parent=7PBNY]
 + Pandora (Kennerleyia) [SYNONYM SUBGENUS 303350:CJ62B nidx=null parent=7PBNY]
Pangonia senegalensis
 - Pangonia senegalensis Macquart, 1834 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTTY nidx=null]
 + Pangonia senegalensis Macquart, 1834 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XVW nidx=null]
Pangonius (Pangonius) escalarae
 - Pangonius (Pangonius) escalarae (Strobl, 1906) [ACCEPTED SPECIES 301819:8D62F nidx=null]
 + Pangonius (Pangonius) escalarae (Strobl, 1906) [ACCEPTED SPECIES 303350:6TKVL nidx=null]
Papilio iarbus
 - Papilio iarbus Fabricius, 1787 [SYNONYM SPECIES 301819:CHCHT nidx=null parent=BZM88]
 + Papilio iarbus Fabricius, 1787 [SYNONYM SPECIES 303350:CJCCC nidx=null parent=BZM88]
Papilio ismarus
 - Papilio ismarus Cramer, 1779 [SYNONYM SPECIES 301819:9F8CJ nidx=null parent=566HS]
 + Papilio ismarus Cramer, 1779 [SYNONYM SPECIES 303350:CJCCF nidx=null parent=566HS]
Papillaria subintegra
 - Papillaria subintegra (Lindb. ex Hampe) Paris [ACCEPTED SPECIES 301819:4CKW2 nidx=null]
 + Papillaria subintegra (Lindb. ex Hampe) Kindb. [ACCEPTED SPECIES 303350:CJCDQ nidx=null]
Papuogryllacris concoloripes
 - Papuogryllacris concoloripes [SYNONYM SPECIES 301819:8Q2R9 nidx=null parent=5K6FS]
 + Papuogryllacris concoloripes Griffini, 1912 [SYNONYM SPECIES 303350:CJCF8 nidx=null parent=5K6FS]
Parabolocratus guttatus
 - Parabolocratus guttatus Uhler, 1896 [SYNONYM SPECIES 301819:CH9WC nidx=null parent=4CMT2]
 + Parabolocratus guttatus Uhler, 1896 [SYNONYM SPECIES 303350:CJ9WK nidx=null parent=4CMT2]
Paragnetina chekianensis
 - Paragnetina chekianensis [SYNONYM SPECIES 301819:8NGYQ nidx=null parent=57B9L]
 + Paragnetina chekianensis (Chu, 1928) [SYNONYM SPECIES 303350:CJB9G nidx=null parent=57B9L]
Paramastax fascialis
 - Paramastax fascialis [SYNONYM SPECIES 301819:8Q2V4 nidx=null parent=4P2NQ]
 + Paramastax fascialis (Saussure, 1903) [SYNONYM SPECIES 303350:CJBF8 nidx=null parent=4P2NQ]
Parantipathes (Aphanipathes) abietina
 - Parantipathes (Aphanipathes) abietina (Pourtalès, 1874) [SYNONYM SPECIES 301819:CDTCJ nidx=null parent=395GN]
 + Parantipathes (Aphanipathes) abietina (Pourtalès, 1874) [SYNONYM SPECIES 303350:CJBJT nidx=null parent=395GN]
Parantipathes (Aphanipathes) barbadensis
 - Parantipathes (Aphanipathes) barbadensis (Brook, 1889) [SYNONYM SPECIES 301819:CHBJD nidx=null parent=54N3N]
 + Parantipathes (Aphanipathes) barbadensis (Brook, 1889) [SYNONYM SPECIES 303350:CJBJV nidx=null parent=54N3N]
Paraonis (Paraonides) lyra capensis
 - Paraonis (Paraonides) lyra capensis Day, 1955 [SYNONYM SUBSPECIES 301819:CHBJH nidx=null parent=BNSGP]
 + Paraonis (Paraonides) lyra capensis Day, 1955 [SYNONYM SUBSPECIES 303350:CJBJZ nidx=null parent=BNSGP]
Parapholidoptera intermixa
 - Parapholidoptera intermixa [SYNONYM SPECIES 301819:8Q2VZ nidx=null parent=8Q2VY]
 + Parapholidoptera intermixa Karabag, 1961 [SYNONYM SPECIES 303350:CJBNM nidx=null parent=8Q2VY]
Parmophorus rueppeli
 - Parmophorus rueppeli [SYNONYM SPECIES 301819:C59S6 nidx=null parent=4W3JZ]
 + Parmophorus rueppeli Philippi, 1851 [SYNONYM SPECIES 303350:6TRC3 nidx=null parent=4W3JZ]
Paroecanthus verapas
 - Paroecanthus verapas [SYNONYM SPECIES 301819:8Q2XX nidx=null parent=5K8CM]
 + Paroecanthus verapas Gorochov, 2011 [SYNONYM SPECIES 303350:CJCDL nidx=null parent=5K8CM]
Parossa viridis
 - Parossa viridis [SYNONYM SPECIES 301819:8PGRF nidx=null parent=5YVVM]
 + Parossa viridis (Giglio-Tos, 1897) [SYNONYM SPECIES 303350:4DSPQ nidx=null parent=5YVVM]
Patula whiteleggei balli
 - Patula whiteleggei balli Hedley, 1891 [SYNONYM SUBSPECIES 301819:9WTZ3 nidx=null parent=4NT83]
 + Patula whiteleggei balli (Brazier, 1889) [SYNONYM SUBSPECIES 303350:CJCQV nidx=null parent=CJLH2]
Pecten hexactes
 - Pecten hexactes Péron, 1819 [SYNONYM SPECIES 301819:767HN nidx=null parent=9WQYF]
 + Pecten hexactes Lamarck, 1819 [SYNONYM SPECIES 303350:CJCX4 nidx=null parent=9WQYF]
Pecten hosiusi
 - Pecten hosiusi Lehmann, 1892 [SYNONYM SPECIES 301819:B6FPV nidx=null parent=B6HX4]
 + Pecten hosiusi Lehmann, 1885 [SYNONYM SPECIES 303350:CJCX5 nidx=null parent=CHXRZ]
Pegomya laminata
 - Pegomya laminata Ringdahl, 1951 [ACCEPTED SPECIES 301819:75XZC nidx=null]
 + Pegomya laminata Ringdahl, 1951 [ACCEPTED SPECIES 303350:92VST nidx=null]
Pelophryne scalptus
 - Pelophryne scalptus (Liu & Hu in Liu, Hu, Fei & Huang, 1973) [SYNONYM SPECIES 301819:CHB8N nidx=null parent=4D7F2]
 + Pelophryne scalptus (Liu & Hu in Liu, Hu, Fei & Huang, 1973) [SYNONYM SPECIES 303350:CJB8Z nidx=null parent=4D7F2]
Pemphigus (Pemphigus) niishimae
 - Pemphigus (Pemphigus) niishimae [ACCEPTED SPECIES 301819:C3ZDL nidx=null]
 + Pemphigus (Pemphigus) niishimae [ACCEPTED SPECIES 303350:CJBCC nidx=null]
Perla brevata
 - Perla brevata [SYNONYM SPECIES 301819:8N3QT nidx=null parent=3QZWG]
 + Perla brevata (Wu, 1948) [SYNONYM SPECIES 303350:775K2 nidx=null parent=3QZWG]
Perla chingtechnensis
 - Perla chingtechnensis [SYNONYM SPECIES 301819:8NH2N nidx=null parent=8NGKJ]
 + Perla chingtechnensis (Wu, 1935) [SYNONYM SPECIES 303350:CJC3M nidx=null parent=8NGKJ]
Perla kiritshenkoi
 - Perla kiritshenkoi [SYNONYM SPECIES 301819:8NGJV nidx=null parent=6V5LY]
 + Perla kiritshenkoi Zhiltzova, 1961 [SYNONYM SPECIES 303350:CJC3N nidx=null parent=6V5LY]
Perlodes dolobrata
 - Perlodes dolobrata [SYNONYM SPECIES 301819:8N3R9 nidx=null parent=4X3HL]
 + Perlodes dolobrata (Smith, 1917) [SYNONYM SPECIES 303350:4F6JM nidx=null parent=4X3HL]
Phacoides (Epilucina)
 - Phacoides (Epilucina) Dall, 1901 [SYNONYM SUBGENUS 301819:CGX22 nidx=null parent=7NYX6]
 + Phacoides (Epilucina) Dall, 1901 [SYNONYM SUBGENUS 303350:CHWY8 nidx=null parent=7NYX6]
Phaenocladius karicus
 - Phaenocladius karicus Chernovsky, 1944 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVF9 nidx=null]
 + Phaenocladius karicus Chernovsky, 1944 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3XYB nidx=null]
Phalaena (Noctua) fagi
 - Phalaena (Noctua) fagi Linnaeus, 1758 [SYNONYM SPECIES 301819:BRCX7 nidx=null parent=93PHG]
 + Phalaena (Noctua) fagi Linnaeus, 1758 [SYNONYM SPECIES 303350:94CYF nidx=null parent=93PHG]
Phalaena (Tinea) goedartella
 - Phalaena (Tinea) goedartella Linnaeus, 1758 [SYNONYM SPECIES 301819:BRCXH nidx=null parent=BFLFD]
 + Phalaena (Tinea) goedartella Linnaeus, 1758 [SYNONYM SPECIES 303350:94CZG nidx=null parent=BFLFD]
Phanaeus lautus
 - Phanaeus lautus MacLeay, 1819 [SYNONYM SPECIES 301819:4FSMT nidx=null parent=7ZQ4T]
 + Phanaeus lautus MacLeay, 1819 [SYNONYM SPECIES 303350:7Y4LS nidx=null parent=7ZQ4T]
Phanoperla (Phanoperla) pallipennis
 - Phanoperla (Phanoperla) pallipennis [SYNONYM SPECIES 301819:BWXGR nidx=null parent=6V9G8]
 + Phanoperla (Phanoperla) pallipennis (Banks, 1938) [SYNONYM SPECIES 303350:CJCW8 nidx=null parent=6V9G8]
Phasmodes ranatriformes
 - Phasmodes ranatriformes [SYNONYM SPECIES 301819:8Q32J nidx=null parent=4FX2B]
 + Phasmodes ranatriformes Westwood, 1843 [SYNONYM SPECIES 303350:CJCZL nidx=null parent=4FX2B]
Phialella chiquitita
 - Phialella chiquitita (Millard, 1959) [ACCEPTED SPECIES 301819:4G3WJ nidx=null]
 + Phialella chiquitita (Millard, 1957) [ACCEPTED SPECIES 303350:CJBDQ nidx=null]
Philinta flava
 - Philinta flava Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVGQ nidx=null]
 + Philinta flava Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3Y23 nidx=null]
Philonexis velifer
 - Philonexis velifer A. Férussac & A. d'Orbigny, 1840 [SYNONYM SPECIES 301819:4G9DT nidx=null parent=583TW]
 + Philonexis velifer A. d'Orbigny, 1835 [SYNONYM SPECIES 303350:CJBJL nidx=null parent=583TW]
Philonotis parvula
 - Philonotis parvula Lindb. ex H. Philib. [SYNONYM SPECIES 301819:9SPCY nidx=null parent=4G9FS]
 + Philonotis parvula Lindb. ex H. Philib. [SYNONYM SPECIES 303350:CJBJR nidx=null parent=4G9FS]
Philonotis pilifera
 - Philonotis pilifera Dixon ex E.B. Bartram [SYNONYM SPECIES 301819:4G9JM nidx=null parent=4G9LB]
 + Philonotis pilifera Dixon ex E.B. Bartram [SYNONYM SPECIES 303350:CJBJS nidx=null parent=4G9LB]
Philonotis subolescens
 - Philonotis subolescens (Müll. Hal.) Paris [ACCEPTED SPECIES 301819:4G9KR nidx=null]
 + Philonotis subolescens (Müll. Hal.) Kindb. [ACCEPTED SPECIES 303350:CJBJX nidx=null]
Phlaeoba antennate
 - Phlaeoba antennate [SYNONYM SPECIES 301819:8Q32T nidx=null parent=5KDC9]
 + Phlaeoba antennate Brunner von Wattenwyl, 1893 [SYNONYM SPECIES 303350:8PHD2 nidx=null parent=5KDC9]
Phlaeoba formosa
 - Phlaeoba formosa [SYNONYM SPECIES 301819:8Q32V nidx=null parent=76ZZ5]
 + Phlaeoba formosa Serville, 1838 [SYNONYM SPECIES 303350:CJBRH nidx=null parent=76ZZ5]
Phlugis tenera
 - Phlugis tenera [SYNONYM SPECIES 301819:8PHFD nidx=null parent=4GJG8]
 + Phlugis tenera (Stål, 1874) [SYNONYM SPECIES 303350:4GJGB nidx=null parent=4GJG8]
Pholas muricatus
 - Pholas muricatus da Costa, 1778 [SYNONYM SPECIES 301819:4GKXJ nidx=null parent=4GKW9]
 + Pholas muricatus da Costa, 1778 [SYNONYM SPECIES 303350:4GKXH nidx=null parent=4GKW9]
Phora gigantea
 - Phora gigantea Enderlein, 1912 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVHG nidx=null]
 + Phora gigantea Enderlein, 1912 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3Y2M nidx=null]
Phrontis hotessieriana
 - Phrontis hotessieriana (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:4GV8J nidx=null]
 + Phrontis hotessieriana (A. d'Orbigny, 1844) [ACCEPTED SPECIES 303350:CJC6X nidx=null]
Phymateus (Phymateus) morbillosus sjoestedti
 - Phymateus (Phymateus) morbillosus sjoestedti [SYNONYM SUBSPECIES 301819:8Q6D4 nidx=null parent=7KKVZ]
 + Phymateus (Phymateus) morbillosus sjoestedti Bolívar, 1904 [SYNONYM SUBSPECIES 303350:CJCRV nidx=null parent=7KKVZ]
Physalia gigantea
 - Physalia gigantea Bory de St Vincent, 1894 [SYNONYM SPECIES 301819:4HFB8 nidx=null parent=4HFBD]
 + Physalia gigantea Bory de Saint-Vincent, 1804 [SYNONYM SPECIES 303350:CJCT7 nidx=null parent=4HFBD]
Phyteumas purpurascens rufovenosus
 - Phyteumas purpurascens rufovenosus [SYNONYM SUBSPECIES 301819:8PM5R nidx=null parent=7KMSL]
 + Phyteumas purpurascens rufovenosus Kevan, Akbar & Chang, 1972 [SYNONYM SUBSPECIES 303350:CJCZR nidx=null parent=7KMSL]
Pictetiella expansella
 - Pictetiella expansella [SYNONYM SPECIES 301819:8NGS8 nidx=null parent=4HQX8]
 + Pictetiella expansella Banks, 1920 [SYNONYM SPECIES 303350:CJD5R nidx=null parent=4HQX8]
Pinna chinensis
 - Pinna chinensis Deshayes, 1841 [SYNONYM SPECIES 301819:4HYS2 nidx=null parent=JL6H]
 + Pinna chinensis Deshayes, 1844 [SYNONYM SPECIES 303350:CJC2J nidx=null parent=CHSK9]
Piophila senescens
 - Piophila senescens Melander & Spuler, 1917 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVTT nidx=null]
 + Piophila senescens Melander & Spuler, 1917 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3Y67 nidx=null]
Pissodogryllacris bedoti ambrens
 - Pissodogryllacris bedoti ambrens [SYNONYM SUBSPECIES 301819:8PM5S nidx=null parent=8TXC9]
 + Pissodogryllacris bedoti ambrens Karny, 1932 [SYNONYM SUBSPECIES 303350:CJCBJ nidx=null parent=8TXC9]
Plagiochila richteri
 - Plagiochila richteri Steph. ex S.C. Srivast. & R. Dixit [SYNONYM SPECIES 301819:9SQPN nidx=null parent=6VN3M]
 + Plagiochila richteri Steph. ex S.C. Srivast. & R. Dixit [SYNONYM SPECIES 303350:CJCJ5 nidx=null parent=6VN3M]
Plagioporus (Plagioporus) maorum
 - Plagioporus (Plagioporus) maorum Allison, 1966 [SYNONYM SPECIES 301819:CG8C9 nidx=null parent=6S7ZW]
 + Plagioporus (Plagioporus) maorum Allison, 1966 [SYNONYM SPECIES 303350:CJCKJ nidx=null parent=6S7ZW]
Plagiostenopterina (Meringomeria) hebes
 - Plagiostenopterina (Meringomeria) hebes Hendel, 1914 [ACCEPTED SPECIES 301819:8DDJH nidx=null]
 + Plagiostenopterina (Meringomeria) hebes Hendel, 1914 [ACCEPTED SPECIES 303350:4JH95 nidx=null]
Plagiostenopterina (Meringomeria) interrupta
 - Plagiostenopterina (Meringomeria) interrupta (Enderlein, 1924) [ACCEPTED SPECIES 301819:8DDJJ nidx=null]
 + Plagiostenopterina (Meringomeria) interrupta (Enderlein, 1924) [ACCEPTED SPECIES 303350:4JH9B nidx=null]
Plagiostenopterina (Meringomeria) leytensis
 - Plagiostenopterina (Meringomeria) leytensis (Steyskal, 1966) [ACCEPTED SPECIES 301819:8DDJK nidx=null]
 + Plagiostenopterina (Meringomeria) leytensis (Steyskal, 1966) [ACCEPTED SPECIES 303350:4JH9D nidx=null]
Plagiostenopterina (Meringomeria) olivacea
 - Plagiostenopterina (Meringomeria) olivacea Hendel, 1913 [ACCEPTED SPECIES 301819:8DDJM nidx=null]
 + Plagiostenopterina (Meringomeria) olivacea Hendel, 1913 [ACCEPTED SPECIES 303350:4JH9Q nidx=null]
Plagiostenopterina (Meringomeria) pallidipes
 - Plagiostenopterina (Meringomeria) pallidipes Frey, 1930 [ACCEPTED SPECIES 301819:8DDJN nidx=null]
 + Plagiostenopterina (Meringomeria) pallidipes Frey, 1930 [ACCEPTED SPECIES 303350:4JH9S nidx=null]
Plagiostenopterina (Meringomeria) planidorsum
 - Plagiostenopterina (Meringomeria) planidorsum (Walker, 1861) [ACCEPTED SPECIES 301819:8DDJP nidx=null]
 + Plagiostenopterina (Meringomeria) planidorsum (Walker, 1861) [ACCEPTED SPECIES 303350:4JH9V nidx=null]
Plagiostenopterina (Meringomeria) trivittata
 - Plagiostenopterina (Meringomeria) trivittata (Walker, 1849) [ACCEPTED SPECIES 301819:8DDJQ nidx=null]
 + Plagiostenopterina (Meringomeria) trivittata (Walker, 1849) [ACCEPTED SPECIES 303350:77N5W nidx=null]
Plagiostenopterina (Meringomeria) trivittigera
 - Plagiostenopterina (Meringomeria) trivittigera Malloch, 1931 [ACCEPTED SPECIES 301819:8DDJR nidx=null]
 + Plagiostenopterina (Meringomeria) trivittigera Malloch, 1931 [ACCEPTED SPECIES 303350:77N68 nidx=null]
Planorbis (Gyraulus)
 - Planorbis (Gyraulus) Agassiz, 1837 [SYNONYM SUBGENUS 301819:CFDXV nidx=null parent=CFDXW]
 + Planorbis (Gyraulus) Charpentier, 1837 [SYNONYM SUBGENUS 303350:CHQJS nidx=null parent=7P4N5]
Planorbula armigera indianensis
 - Planorbula armigera indianensis F. C. Baker, 1945 [SYNONYM SUBSPECIES 301819:7TZS7 nidx=null parent=6VNYS]
 + Planorbula armigera indianensis F. C. Baker, 1930 [SYNONYM SUBSPECIES 303350:CJCPF nidx=null parent=6VNYS]
Platypetasus anderssoni
 - Platypetasus anderssoni Odhner, 1925 [SYNONYM SPECIES 301819:84Z7T nidx=null parent=B77FZ]
 + Platypetasus anderssoni Odhner, 1925 [SYNONYM SPECIES 303350:7SQYK nidx=null parent=B77FZ]
Plesiastraea (Palaeoplesiastraea) desmoulinsi
 - Plesiastraea (Palaeoplesiastraea) desmoulinsi Milne Edwards & Haime, 1851 [SYNONYM SPECIES 301819:CG9LY nidx=null parent=85YGB]
 + Plesiastraea (Palaeoplesiastraea) desmoulinsi Milne Edwards & Haime, 1851 [SYNONYM SPECIES 303350:CJDJ3 nidx=null parent=85YGB]
Pleurotoma bottae
 - Pleurotoma bottae Valenciennes in Kiener, 1839 [SYNONYM SPECIES 301819:4KDRM nidx=null parent=Z6QV]
 + Pleurotoma bottae Kiener, 1839 [SYNONYM SPECIES 303350:CJDSY nidx=null parent=CHY6L]
Podisma teberina
 - Podisma teberina [SYNONYM SPECIES 301819:8Q3DQ nidx=null parent=4KPT2]
 + Podisma teberina Ramme, 1951 [SYNONYM SPECIES 303350:CJC4Q nidx=null parent=4KPT2]
Podismopsis poppuisi
 - Podismopsis poppuisi [SYNONYM SPECIES 301819:8Q3DW nidx=null parent=7KNV4]
 + Podismopsis poppuisi Miram, 1907 [SYNONYM SPECIES 303350:CJC4R nidx=null parent=7KNV4]
Podismopsis quadrasonila
 - Podismopsis quadrasonila [SYNONYM SPECIES 301819:8Q3DX nidx=null parent=77QWH]
 + Podismopsis quadrasonila Zhang & Jin, 1985 [SYNONYM SPECIES 303350:CJC4S nidx=null parent=77QWH]
Podismopsis ussurensis
 - Podismopsis ussurensis [SYNONYM SPECIES 301819:BV6NV nidx=null parent=5KJNW]
 + Podismopsis ussurensis Ikonnikov, 1911 [SYNONYM SPECIES 303350:CJC4T nidx=null parent=5KJNW]
Poecilimon (Poecilimon) celebi teyfikarabagi
 - Poecilimon (Poecilimon) celebi teyfikarabagi [SYNONYM SUBSPECIES 301819:8Q6DG nidx=null parent=5KJV9]
 + Poecilimon (Poecilimon) celebi teyfikarabagi Ünal, 2005 [SYNONYM SUBSPECIES 303350:CJC6F nidx=null parent=5KJV9]
Poecilimon holzi
 - Poecilimon holzi [SYNONYM SPECIES 301819:8Q3FW nidx=null parent=78563]
 + Poecilimon holzi Werner, 1902 [SYNONYM SPECIES 303350:CJC6L nidx=null parent=78563]
Poecilimon kutahiyensis
 - Poecilimon kutahiyensis [SYNONYM SPECIES 301819:8PHW7 nidx=null parent=4KSKC]
 + Poecilimon kutahiyensis Werner, 1901 [SYNONYM SPECIES 303350:CJC6H nidx=null parent=4KSKC]
Poecilimon mistshenkoi vlahinensis
 - Poecilimon mistshenkoi vlahinensis [SYNONYM SUBSPECIES 301819:8Q6DN nidx=null parent=4KSL2]
 + Poecilimon mistshenkoi vlahinensis Peshev, 1980 [SYNONYM SUBSPECIES 303350:CJC6M nidx=null parent=4KSL2]
Poecilimon tchorochensis
 - Poecilimon tchorochensis [SYNONYM SPECIES 301819:8Q3G8 nidx=null parent=6VT62]
 + Poecilimon tchorochensis Adelung, 1907 [SYNONYM SPECIES 303350:CJC6N nidx=null parent=6VT62]
Poecilocloeus flavopictus
 - Poecilocloeus flavopictus [SYNONYM SPECIES 301819:8Q3GL nidx=null parent=6W54K]
 + Poecilocloeus flavopictus Bruner, 1913 [SYNONYM SPECIES 303350:CJC6V nidx=null parent=6W54K]
Polleniomyia
 - Polleniomyia Jacentkovský, 1942 [SYNONYM GENUS 301819:CHCKR nidx=null parent=BY3X5]
 + Polleniomyia Jacentkovský, 1942 [SYNONYM GENUS 303350:CJCFF nidx=null parent=BY3X5]
 + Polleniomyia Jacentkovský, 1941 [SYNONYM GENUS 303350:CJCFG nidx=null parent=BY3X5]
Polypedilum (Polypedilum) pharao
 - Polypedilum (Polypedilum) pharao Kieffer, 1925 [ACCEPTED SPECIES 301819:CDWTP nidx=null]
 + Polypedilum (Polypedilum) pharao Kieffer, 1925 [ACCEPTED SPECIES 303350:CJCVG nidx=null]
Polytrichum microstomum
 - Polytrichum microstomum R. Br. ex Schwägr. [SYNONYM SPECIES 301819:9SRXN nidx=null parent=4KV9Q]
 + Polytrichum microstomum R. Br. ex Schwägr. [SYNONYM SPECIES 303350:CJD74 nidx=null parent=4KV9Q]
Praehyalocylis annulata
 - Praehyalocylis annulata (Tate, 1887) [SYNONYM SPECIES 301819:7SSYZ nidx=null parent=7SSZ4]
 + Praehyalocylis annulata (Tate, 1887) [ACCEPTED SPECIES 303350:4M8HW nidx=null]
Profusulinella (Depratina) subovata
 - Profusulinella (Depratina) subovata Safonova in Rauzer-Chernousova et al., 1951 [SYNONYM SPECIES 301819:CBXKQ nidx=null parent=83MPW]
 + Profusulinella (Depratina) subovata Safonova in Rauzer-Chernousova et al., 1951 [SYNONYM SPECIES 303350:CJCZ9 nidx=null parent=83MPW]
Propedies rubipes
 - Propedies rubipes [SYNONYM SPECIES 301819:8PJ3Y nidx=null parent=4MTRW]
 + Propedies rubipes Bruner, 1911 [SYNONYM SPECIES 303350:CJD4F nidx=null parent=4MTRW]
Propontocypris (Propontocypris) minacis
 - Propontocypris (Propontocypris) minacis Maddocks in Maddocks & Iliffe, 1986 [SYNONYM SPECIES 301819:CG944 nidx=null parent=3R2R7]
 + Propontocypris (Propontocypris) minacis Maddocks in Maddocks & Iliffe, 1986 [SYNONYM SPECIES 303350:CJD4R nidx=null parent=3R2R7]
Protoginella wentworthii
 - †Protoginella wentworthii (Tate, 1877) [ACCEPTED SPECIES 301819:8H9X2 nidx=null]
 + Protoginella wentworthii (Tenison Woods, 1877) [ACCEPTED SPECIES 303350:CJDGK nidx=null]
Protomedeia (Cheirimedia) macrocarpa
 - Protomedeia (Cheirimedia) macrocarpa Bulyčeva, 1952 [SYNONYM SPECIES 301819:CG9LQ nidx=null parent=TTWH]
 + Protomedeia (Cheirimedia) macrocarpa Bulyčeva, 1952 [SYNONYM SPECIES 303350:CJDHY nidx=null parent=TTWH]
Protomyia fusca
 - †Protomyia fusca Oustalet, 1870 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JW6S nidx=null]
 + Protomyia fusca Oustalet, 1870 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YDJ nidx=null]
Protonemura falcula
 - Protonemura falcula [SYNONYM SPECIES 301819:8NGQJ nidx=null parent=424PB]
 + Protonemura falcula Kimmins, 1950 [SYNONYM SPECIES 303350:CJDJ5 nidx=null parent=424PB]
Pseudoeocyllina longicornis
 - Pseudoeocyllina longicornis [SYNONYM SPECIES 301819:8PJ6Q nidx=null parent=4NWM5]
 + Pseudoeocyllina longicornis Liang & Jia, 1992 [SYNONYM SPECIES 303350:4NWLX nidx=null parent=4NWM5]
Pseudofentonia (Dymantis) tiga
 - Pseudofentonia (Dymantis) tiga Schintlmeister, 1997 [SYNONYM SPECIES 301819:6WFWQ nidx=null parent=C7JG2]
 + Pseudofentonia (Dymantis) tiga Schintlmeister, 1997 [SYNONYM SPECIES 303350:BMWFS nidx=null parent=C7JG2]
Pseudofentonia (Eufentonia) emiror
 - Pseudofentonia (Eufentonia) emiror Schintlmeister, 1989 [SYNONYM SPECIES 301819:78G8L nidx=null parent=C4MJT]
 + Pseudofentonia (Eufentonia) emiror Schintlmeister, 1989 [SYNONYM SPECIES 303350:BMWFP nidx=null parent=C4MJT]
Pseudohormomyia orientalis
 - Pseudohormomyia orientalis Rao, 1956 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JW8M nidx=null]
 + Pseudohormomyia orientalis Rao, 1956 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YDW nidx=null]
Pseudosphegina dichoptica
 - †Pseudosphegina dichoptica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWB2 nidx=null]
 + Pseudosphegina dichoptica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YF8 nidx=null]
Pseudotriton salmoneus
 - Pseudotriton salmoneus (Storer in Holbrook, 1838) [SYNONYM SPECIES 301819:CG9TQ nidx=null parent=3HYSW]
 + Pseudotriton salmoneus (Storer in Holbrook, 1838) [SYNONYM SPECIES 303350:CJDPT nidx=null parent=3HYSW]
Psilopus ducalis
 - Psilopus ducalis Rondani, 1850 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWG8 nidx=null]
 + Psilopus ducalis Rondani, 1850 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFC nidx=null]
Psilopus gemmatus
 - Psilopus gemmatus Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGB nidx=null]
 + Psilopus gemmatus Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFD nidx=null]
Psilopus leiopus
 - Psilopus leiopus Doleschall, 1856 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGH nidx=null]
 + Psilopus leiopus Doleschall, 1856 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFF nidx=null]
Psilopus nitidus
 - Psilopus nitidus Walker, 1852 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGK nidx=null]
 + Psilopus nitidus Walker, 1852 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFG nidx=null]
Psilopus palmetorum
 - Psilopus palmetorum Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGM nidx=null]
 + Psilopus palmetorum Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFH nidx=null]
Psilopus restrictus
 - Psilopus restrictus Hutton, 1901 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGV nidx=null]
 + Psilopus restrictus Hutton, 1901 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFK nidx=null]
Psilopus saphirus
 - Psilopus saphirus Bigot, 1858 [SYNONYM SPECIES 301819:4PJGL nidx=null parent=9H8MR]
 + Psilopus saphirus Bigot, 1858 [SYNONYM SPECIES 303350:8D6F6 nidx=null parent=9H8MR]
Psilosciara delphinii
 - Psilosciara delphinii Séguy, 1961 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWH5 nidx=null]
 + Psilosciara delphinii Séguy, 1961 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFL nidx=null]
Psiloscirtus olivaceous
 - Psiloscirtus olivaceous [SYNONYM SPECIES 301819:8Q3LF nidx=null parent=4PJKB]
 + Psiloscirtus olivaceous Bruner, 1911 [SYNONYM SPECIES 303350:CJDXH nidx=null parent=4PJKB]
Psilota tabidosa
 - †Psilota tabidosa Scudder, 1890 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWH7 nidx=null]
 + Psilota tabidosa Scudder, 1890 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YFM nidx=null]
Psychoda fimbriatissima
 - Psychoda fimbriatissima Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWHH nidx=null]
 + Psychoda fimbriatissima Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YJ2 nidx=null]
Pterochroza erosa
 - Pterochroza erosa [SYNONYM SPECIES 301819:8PJ8X nidx=null parent=BTC67]
 + Pterochroza erosa (Stoll, 1813) [SYNONYM SPECIES 303350:CJFFC nidx=null parent=BTC67]
Pterolepis venosus
 - Pterolepis venosus (Fischer von Waldheim, 1839) [SYNONYM SPECIES 301819:CHFMS nidx=null parent=4PLSV]
 + Pterolepis venosus (Fischer von Waldheim, 1839) [SYNONYM SPECIES 303350:CJFG8 nidx=null parent=4PLSV]
Pteronemobius mikado
 - Pteronemobius mikado [SYNONYM SPECIES 301819:8Q3MJ nidx=null parent=8Q3GS]
 + Pteronemobius mikado (Shiraki, 1911) [SYNONYM SPECIES 303350:CJFHN nidx=null parent=8Q3GS]
Ptilozeuxia termitoxena
 - Ptilozeuxia termitoxena Silvestri, 1903 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWJF nidx=null]
 + Ptilozeuxia termitoxena Silvestri, 1903 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YN5 nidx=null]
Pupoides coenopictus samavaensis
 - Pupoides coenopictus samavaensis (Mousson in Paladilhe, 1872) [SYNONYM SUBSPECIES 301819:5KSP9 nidx=null parent=6WPB2]
 + Pupoides coenopictus samavaensis (Paladilhe, 1872) [SYNONYM SUBSPECIES 303350:CJG2P nidx=null parent=6WPB2]
Purpura sismondai
 - Purpura sismondai Doderlein, 1862 [SYNONYM SPECIES 301819:B3FJ5 nidx=null parent=86YLZ]
 + Purpura sismondai Doderlein, 1864 [SYNONYM SPECIES 303350:CJG36 nidx=null parent=CHV7J]
Pusillina (Haurakia)
 - Pusillina (Haurakia) Iredale, 1915 [SYNONYM SUBGENUS 301819:CH3MC nidx=null parent=7P4TW]
 + Pusillina (Haurakia) Iredale, 1915 [SYNONYM SUBGENUS 303350:CJ3LK nidx=null parent=7P4TW]
Pycna beccarii
 - Pycna beccarii (Lethierry, 1881) [SYNONYM SPECIES 301819:CHG9L nidx=null parent=8JS35]
 + Pycna beccarii (Lethierry, 1881) [SYNONYM SPECIES 303350:CJG3T nidx=null parent=8JS35]
Pyrgomorpha minima miniata
 - Pyrgomorpha minima miniata [SYNONYM SUBSPECIES 301819:8Q6FF nidx=null parent=5KT4D]
 + Pyrgomorpha minima miniata Uvarov, 1943 [SYNONYM SUBSPECIES 303350:CJG9T nidx=null parent=5KT4D]
Quadrula (Quadrula) quadrula fragosa
 - Quadrula (Quadrula) quadrula fragosa (Conrad, 1835) [SYNONYM SUBSPECIES 301819:CBXCD nidx=null parent=4QZJS]
 + Quadrula (Quadrula) quadrula fragosa (Conrad, 1835) [SYNONYM SUBSPECIES 303350:CJDCF nidx=null parent=4QZJS]
Radiolites marticensis
 - Radiolites marticensis A. d'Orbigny, 1847 [SYNONYM SPECIES 301819:6WS7B nidx=null parent=5TTRN]
 + Radiolites marticensis A. d'Orbigny, 1850 [SYNONYM SPECIES 303350:CJDQV nidx=null parent=CHPGW]
Radula cavifolia
 - Radula cavifolia Hampe ex Gottsche, Lindenb. & Nees [ACCEPTED SPECIES 301819:4R9N5 nidx=null]
 + Radula cavifolia Hampe ex Gottsche, Lindenb. & Nees [ACCEPTED SPECIES 303350:CJDR9 nidx=null]
Raeta (Raetina)
 - Raeta (Raetina) Dall, 1898 [SYNONYM SUBGENUS 301819:CDFQC nidx=null parent=7PFJL]
 + Raeta (Raetina) Dall, 1898 [SYNONYM SUBGENUS 303350:CJ4S3 nidx=null parent=7PFJL]
Ramsdenia enodis
 - Ramsdenia enodis (Gundlach, 1861) [ACCEPTED SPECIES 301819:8NCQZ nidx=null]
 + Ramsdenia enodis (Gundlach, 1861) [ACCEPTED SPECIES 303350:872LD nidx=null]
Ramsdenia enodis brevilabris
 - Ramsdenia enodis brevilabris (Aguayo, 1943) [ACCEPTED SUBSPECIES 301819:8NCZG nidx=null]
 + Ramsdenia enodis brevilabris (Aguayo, 1943) [ACCEPTED SUBSPECIES 303350:86YRQ nidx=null]
Ramsdenia enodis enodis
 - Ramsdenia enodis enodis (Gundlach, 1861) [ACCEPTED SUBSPECIES 301819:8NFC7 nidx=null]
 + Ramsdenia enodis enodis (Gundlach, 1861) [ACCEPTED SUBSPECIES 303350:8739S nidx=null]
Ranella crumenoides
 - Ranella crumenoides Blainville, 1832 [SYNONYM SPECIES 301819:4RF4B nidx=null parent=NPJ5]
 + Ranella crumenoides Valenciennes, 1832 [SYNONYM SPECIES 303350:CJF27 nidx=null parent=NPJ5]
Recilia (Togacephalus) latifrons
 - Recilia (Togacephalus) latifrons (Matsumura, 1902) [SYNONYM SPECIES 301819:CGBXM nidx=null parent=8RLV8]
 + Recilia (Togacephalus) latifrons (Matsumura, 1902) [SYNONYM SPECIES 303350:CJFFJ nidx=null parent=8RLV8]
Rhabdotylus planiventris
 - Rhabdotylus planiventris (Wiedemann, 1828) [ACCEPTED SPECIES 301819:8DKZ3 nidx=null]
 + Rhabdotylus planiventris (Wiedemann, 1828) [ACCEPTED SPECIES 303350:92WRF nidx=null]
Rhaetofungivora perrecticulata
 - †Rhaetofungivora perrecticulata Rohdendorf, 1964 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWM2 nidx=null]
 + Rhaetofungivora perrecticulata Rohdendorf, 1964 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YQR nidx=null]
Rhagio bicolor
 - Rhagio bicolor Fabricius, 1794 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWM5 nidx=null]
 + Rhagio bicolor Fabricius, 1794 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YQS nidx=null]
Rhamphomyia (Lundstroemiella) confinis
 - Rhamphomyia (Lundstroemiella) confinis Zetterstedt, 1852 [ACCEPTED SPECIES 301819:8DLCN nidx=null]
 + Rhamphomyia (Lundstroemiella) confinis Zetterstedt, 1852 [ACCEPTED SPECIES 303350:4S2VB nidx=null]
Rhopalopsole jialingensis
 - Rhopalopsole jialingensis Qian & Du, 2012 [SYNONYM SPECIES 301819:8N4RP nidx=null parent=4SLGN]
 + Rhopalopsole jialingensis Sivec & Harper, 2008 [SYNONYM SPECIES 303350:4SLHT nidx=null parent=4SLGN]
Rhopalosiphum lahorensis
 - Rhopalosiphum lahorensis [SYNONYM SPECIES 301819:8PJHZ nidx=null parent=X875]
 + Rhopalosiphum lahorensis (Das, 1918) [SYNONYM SPECIES 303350:6WVVN nidx=null parent=X875]
Rhynchomyia bicolor
 - Rhynchomyia bicolor Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWSP nidx=null]
 + Rhynchomyia bicolor Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YVH nidx=null]
Rhynchostegium
 - Rhynchostegium Schimp. [ACCEPTED GENUS 301819:9JN6Q nidx=null]
 + Rhynchostegium Schimp. [ACCEPTED GENUS 303350:CJDXJ nidx=null]
Rhytiphora (Saperdopsis) marmorata
 - Rhytiphora (Saperdopsis) marmorata (Breuning, 1938) [SYNONYM SPECIES 301819:C5BRN nidx=null parent=4SX72]
 + Rhytiphora (Saperdopsis) marmorata (Breuning, 1938) [SYNONYM SPECIES 303350:BRKPN nidx=null parent=4SX72]
Riccia epicarpa
 - Riccia epicarpa Wallr. ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 301819:9TY7B nidx=null parent=6WWXB]
 + Riccia epicarpa Wallr. ex Gottsche, Lindenb. & Nees [SYNONYM SPECIES 303350:CJF3R nidx=null parent=6WWXB]
Riccia rhenana
 - Riccia rhenana Lorb. ex Müll. Frib. [ACCEPTED SPECIES 301819:798YY nidx=null]
 + Riccia rhenana Lorb. ex Müll. Frib. [ACCEPTED SPECIES 303350:CJF3T nidx=null]
Rigodium implexum
 - Rigodium implexum Kunze ex Schwägr. [ACCEPTED SPECIES 301819:78WQF nidx=null]
 + Rigodium implexum Kunze ex Schwägr. [ACCEPTED SPECIES 303350:CJF5S nidx=null]
Ringicula striata
 - †Ringicula striata (R. A. Philippi, 1843) [ACCEPTED SPECIES 301819:94LX3 nidx=null]
 + Ringicula striata R. A. Philippi, 1841 [ACCEPTED SPECIES 303350:CJFBY nidx=null]
Rissoa perpusilla
 - Rissoa perpusilla Grateloup, 1827 [SYNONYM SPECIES 301819:7T2H6 nidx=null parent=7RC4K]
 + Rissoa perpusilla Grateloup, 1828 [SYNONYM SPECIES 303350:79953 nidx=null parent=7RC4K]
Robinsoniella
 - †Robinsoniella Schlagintweit in Schlagintweit & Mitchell, 202 [ACCEPTED GENUS 301819:8YXKD nidx=null]
 + Robinsoniella Schlagintweit in Schlagintweit & Mitchell, 2022 [ACCEPTED GENUS 303350:CJFGB nidx=null]
Robinsoniella jamaicaensis
 - †Robinsoniella jamaicaensis Schlagintweit in Schlagintweit & Mitchell, 202 [ACCEPTED SPECIES 301819:8ZF3T nidx=null]
 + Robinsoniella jamaicaensis Schlagintweit in Schlagintweit & Mitchell, 2022 [ACCEPTED SPECIES 303350:CJFGD nidx=null]
Rostellaria subpunctata
 - Rostellaria subpunctata Münster, 1844 [SYNONYM SPECIES 301819:7T2VB nidx=null parent=7TCRL]
 + Rostellaria subpunctata Münster, 1841 [SYNONYM SPECIES 303350:CJFTM nidx=null parent=CJJH7]
Rotalia orbicularis
 - Rotalia orbicularis (Terquem, 1882) [ACCEPTED SPECIES 301819:4TG2S nidx=null]
 + Rotalia orbicularis (d'Orbigny in Parker, Jones & Brady, 1865) [SYNONYM SPECIES 303350:CJFTV nidx=null parent=3HZLZ]
Sabacon viscayanus
 - Sabacon viscayanus Simon, 1881 [ACCEPTED SPECIES 301819:7YVCY nidx=null]
 + Sabacon viscayanus Simon, 1881 [ACCEPTED SPECIES 303350:CJLC4 nidx=null]
Saliocleta (Saliocleta) nonagrioides
 - Saliocleta (Saliocleta) nonagrioides Walker, 1862 [ACCEPTED SPECIES 301819:CCHCD nidx=null]
 + Saliocleta (Saliocleta) nonagrioides Walker, 1862 [ACCEPTED SPECIES 303350:CJLCJ nidx=null]
Salmacis rarispinus
 - Salmacis rarispinus L. Agassiz in L. Agassiz & Desor, 1846 [SYNONYM SPECIES 301819:CGBVP nidx=null parent=5F2BG]
 + Salmacis rarispinus L. Agassiz in L. Agassiz & Desor, 1846 [SYNONYM SPECIES 303350:CJFCZ nidx=null parent=5F2BG]
Sapromyza fuscipes
 - Sapromyza fuscipes Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWVH nidx=null]
 + Sapromyza fuscipes Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3YW8 nidx=null]
Sarcocyphos fuscus
 - Sarcocyphos fuscus Nees ex P. Kumm. [SYNONYM SPECIES 301819:9VWRS nidx=null parent=3Y9P5]
 + Sarcocyphos fuscus Nees ex P. Kumm. [SYNONYM SPECIES 303350:CJFRP nidx=null parent=3Y9P5]
Sarcophaga (Harpagophylloides) opata
 - Sarcophaga (Harpagophylloides) opata Zumpt, 1972 [ACCEPTED SPECIES 301819:8DPSM nidx=null]
 + Sarcophaga (Harpagophylloides) opata Zumpt, 1972 [ACCEPTED SPECIES 303350:CJFRY nidx=null]
Scacchia antwerpiensis
 - †Scacchia antwerpiensis (Glibert, 1943) [ACCEPTED SPECIES 301819:79SSZ nidx=null]
 + Scacchia antwerpiensis (Glibert, 1945) [ACCEPTED SPECIES 303350:CJG5B nidx=null]
Scala
 - Scala Mörch, 1852 [PROVISIONALLY_ACCEPTED GENUS 301819:C6XHL nidx=null]
 + Scala [ACCEPTED GENUS 303350:7PG9L nidx=null]
Scalaria
 - Scalaria Lamarck, 1801 [PROVISIONALLY_ACCEPTED GENUS 301819:C5YH9 nidx=null]
 + Scalaria [ACCEPTED GENUS 303350:7PG9M nidx=null]
Scapania nimbosa
 - Scapania nimbosa Taylor ex Lehm. [ACCEPTED SPECIES 301819:9MHPM nidx=null]
 + Scapania nimbosa Taylor ex Lehm. [ACCEPTED SPECIES 303350:79RXG nidx=null]
Scaphytopius (Cloanthanus) analis castranus
 - Scaphytopius (Cloanthanus) analis castranus (Ball, 1931) [SYNONYM SUBSPECIES 301819:BQFFY nidx=null parent=9LK9D]
 + Scaphytopius (Cloanthanus) analis castranus (Ball, 1931) [SYNONYM SUBSPECIES 303350:CJG7Z nidx=null parent=9LK9D]
Scaphytopius (Cloanthanus) barroensis
 - Scaphytopius (Cloanthanus) barroensis Linnavuori & DeLong, 1978 [SYNONYM SPECIES 301819:8RDWH nidx=null parent=9KSK5]
 + Scaphytopius (Cloanthanus) barroensis Linnavuori & DeLong, 1978 [SYNONYM SPECIES 303350:CJG83 nidx=null parent=9KSK5]
Scaphytopius (Cloanthanus) falcatus
 - Scaphytopius (Cloanthanus) falcatus (DeLong, 1943) [SYNONYM SPECIES 301819:8RDX7 nidx=null parent=9KSLN]
 + Scaphytopius (Cloanthanus) falcatus (DeLong, 1943) [SYNONYM SPECIES 303350:CJG8C nidx=null parent=9KSLN]
Scaphytopius (Cloanthanus) frontalis
 - Scaphytopius (Cloanthanus) frontalis (Van Duzee, 1890) [SYNONYM SPECIES 301819:8RDXD nidx=null parent=9KSLV]
 + Scaphytopius (Cloanthanus) frontalis (Van Duzee, 1890) [SYNONYM SPECIES 303350:CJG8F nidx=null parent=9KSLV]
Scaphytopius (Cloanthanus) goodi
 - Scaphytopius (Cloanthanus) goodi (DeLong, 1943) [SYNONYM SPECIES 301819:8RDXJ nidx=null parent=9KSM5]
 + Scaphytopius (Cloanthanus) goodi (DeLong, 1943) [SYNONYM SPECIES 303350:CJG8J nidx=null parent=9KSM5]
Scaphytopius (Cloanthanus) heldoranus
 - Scaphytopius (Cloanthanus) heldoranus (Ball, 1931) [SYNONYM SPECIES 301819:CBYDD nidx=null parent=9KSMB]
 + Scaphytopius (Cloanthanus) heldoranus (Ball, 1931) [SYNONYM SPECIES 303350:8RDXP nidx=null parent=9KSMB]
Scaphytopius (Cloanthanus) limbatus
 - Scaphytopius (Cloanthanus) limbatus (Osborn, 1926) [SYNONYM SPECIES 301819:8RDY3 nidx=null parent=9KSMW]
 + Scaphytopius (Cloanthanus) limbatus (Osborn, 1926) [SYNONYM SPECIES 303350:CJG8P nidx=null parent=9KSMW]
Scaphytopius (Cloanthanus) magdalensis
 - Scaphytopius (Cloanthanus) magdalensis (Provancher, 1889) [SYNONYM SPECIES 301819:8RDY8 nidx=null parent=9KSN9]
 + Scaphytopius (Cloanthanus) magdalensis (Provancher, 1889) [SYNONYM SPECIES 303350:CJG8R nidx=null parent=9KSN9]
Scaphytopius (Cloanthanus) nanus
 - Scaphytopius (Cloanthanus) nanus (Van Duzee, 1907) [SYNONYM SPECIES 301819:CHGG6 nidx=null parent=9KSNJ]
 + Scaphytopius (Cloanthanus) nanus (Van Duzee, 1907) [SYNONYM SPECIES 303350:8RDYD nidx=null parent=9KSNJ]
Scaphytopius (Cloanthanus) oregonensis
 - Scaphytopius (Cloanthanus) oregonensis (Baker, 1900) [SYNONYM SPECIES 301819:8RDYL nidx=null parent=9KSP2]
 + Scaphytopius (Cloanthanus) oregonensis (Baker, 1900) [SYNONYM SPECIES 303350:CJG8X nidx=null parent=9KSP2]
Scaphytopius (Cloanthanus) plummeri
 - Scaphytopius (Cloanthanus) plummeri (DeLong, 1943) [SYNONYM SPECIES 301819:CGD7M nidx=null parent=9KSPH]
 + Scaphytopius (Cloanthanus) plummeri (DeLong, 1943) [SYNONYM SPECIES 303350:8RDYX nidx=null parent=9KSPH]
Scaphytopius (Cloanthanus) stonei
 - Scaphytopius (Cloanthanus) stonei (DeLong, 1943) [SYNONYM SPECIES 301819:8RDZB nidx=null parent=9KSPZ]
 + Scaphytopius (Cloanthanus) stonei (DeLong, 1943) [SYNONYM SPECIES 303350:CJG8Z nidx=null parent=9KSPZ]
Scaphytopius (Cloanthanus) triangularis
 - Scaphytopius (Cloanthanus) triangularis (DeLong, 1945) [SYNONYM SPECIES 301819:8RDZH nidx=null parent=9KSQ6]
 + Scaphytopius (Cloanthanus) triangularis (DeLong, 1945) [SYNONYM SPECIES 303350:CJG93 nidx=null parent=9KSQ6]
Scaphytopius (Cloanthanus) tripunctatus
 - Scaphytopius (Cloanthanus) tripunctatus (DeLong, 1943) [SYNONYM SPECIES 301819:8RDZK nidx=null parent=9KSQ9]
 + Scaphytopius (Cloanthanus) tripunctatus (DeLong, 1943) [SYNONYM SPECIES 303350:CJG95 nidx=null parent=9KSQ9]
Scaphytopius (Convelinus) atrifrons
 - Scaphytopius (Convelinus) atrifrons DeLong & Linnavuori, 1978 [SYNONYM SPECIES 301819:8RDZY nidx=null parent=9KSK4]
 + Scaphytopius (Convelinus) atrifrons DeLong & Linnavuori, 1978 [SYNONYM SPECIES 303350:CJG96 nidx=null parent=9KSK4]
Scaphytopius (Convelinus) brunneus
 - Scaphytopius (Convelinus) brunneus Hepner, 1946 [SYNONYM SPECIES 301819:CHGFG nidx=null parent=9KSKB]
 + Scaphytopius (Convelinus) brunneus Hepner, 1946 [SYNONYM SPECIES 303350:CJG84 nidx=null parent=9KSKB]
Scaphytopius (Convelinus) marginelineatus
 - Scaphytopius (Convelinus) marginelineatus (Stål, 1859) [SYNONYM SPECIES 301819:CGD7S nidx=null parent=9KSNB]
 + Scaphytopius (Convelinus) marginelineatus (Stål, 1859) [SYNONYM SPECIES 303350:8RF2H nidx=null parent=9KSNB]
Scaphytopius (Convelinus) pennatus
 - Scaphytopius (Convelinus) pennatus Hepner, 1946 [SYNONYM SPECIES 301819:CHGGD nidx=null parent=9KSPB]
 + Scaphytopius (Convelinus) pennatus Hepner, 1946 [SYNONYM SPECIES 303350:CJG8Y nidx=null parent=9KSPB]
Scaphytopius (Convelinus) saginatus
 - Scaphytopius (Convelinus) saginatus Linnavuori, 1959 [SYNONYM SPECIES 301819:8RF2P nidx=null parent=9KSPN]
 + Scaphytopius (Convelinus) saginatus Linnavuori, 1959 [SYNONYM SPECIES 303350:CJG98 nidx=null parent=9KSPN]
Scaphytopius (Convelinus) spinosus
 - Scaphytopius (Convelinus) spinosus DeLong & Linnavuori, 1978 [SYNONYM SPECIES 301819:8RF2R nidx=null parent=9KSPY]
 + Scaphytopius (Convelinus) spinosus DeLong & Linnavuori, 1978 [SYNONYM SPECIES 303350:CJG99 nidx=null parent=9KSPY]
Scaphytopius (Scaphytopius) huachucus
 - Scaphytopius (Scaphytopius) huachucus (DeLong, 1944) [SYNONYM SPECIES 301819:CF3PL nidx=null parent=9QP2R]
 + Scaphytopius (Scaphytopius) huachucus (DeLong, 1944) [SYNONYM SPECIES 303350:8RNFN nidx=null parent=9QP2R]
Schedocentrus (Schedocentrus) tesselatus
 - Schedocentrus (Schedocentrus) tesselatus [SYNONYM SPECIES 301819:8PJSZ nidx=null parent=4V6C9]
 + Schedocentrus (Schedocentrus) tesselatus Giglio-Tos, 1898 [SYNONYM SPECIES 303350:CJGDP nidx=null parent=4V6C9]
Schistidium strictum
 - Schistidium strictum (Turner) Loeske ex Mårtensson [ACCEPTED SPECIES 301819:9MJCG nidx=null]
 + Schistidium strictum (Turner) Loeske ex Mårtensson [ACCEPTED SPECIES 303350:CJGGQ nidx=null]
Schistocerca peregrina
 - Schistocerca peregrina [SYNONYM SPECIES 301819:8Q3TL nidx=null parent=5L387]
 + Schistocerca peregrina (Olivier, 1804) [SYNONYM SPECIES 303350:CJGGT nidx=null parent=5L387]
Schizaphis (Schizaphis) rotundiventris
 - Schizaphis (Schizaphis) rotundiventris [ACCEPTED SPECIES 301819:BWFDW nidx=null]
 - Schizaphis (Schizaphis) rotundiventris [AMBIGUOUS_SYNONYM SPECIES 301819:CHGN4 nidx=null parent=8QWGX]
 + Schizaphis (Schizaphis) rotundiventris (Signoret) [ACCEPTED SPECIES 303350:CJGHB nidx=null]
Schizaphis rotundiventris
 - Schizaphis rotundiventris [AMBIGUOUS_SYNONYM SPECIES 301819:CGDJR nidx=null parent=8QWGX]
 - Schizaphis rotundiventris [AMBIGUOUS_SYNONYM SPECIES 301819:CGDJS nidx=null parent=BWFDW]
 + Schizaphis rotundiventris (Signoret) [AMBIGUOUS_SYNONYM SPECIES 303350:CJGHC nidx=null parent=CJGHB]
Schoudenia
 - Schoudenia [SYNONYM GENUS 301819:8QY3V nidx=null parent=7DVF]
 + Schoudenia Rübsaamen, 1905 [SYNONYM GENUS 303350:CJGP6 nidx=null parent=CJGPC]
Schoutedenia
 - Schoutedenia [ACCEPTED GENUS 301819:7DVF nidx=null]
 + Schoutedenia Rübsaamen, 1905 [ACCEPTED GENUS 303350:CJGPC nidx=null]
Schoutedenia ralumensis
 - Schoutedenia ralumensis [ACCEPTED SPECIES 301819:4VFMZ nidx=null]
 + Schoutedenia ralumensis Rübsaamen, 1905 [ACCEPTED SPECIES 303350:CJGPJ nidx=null]
Scipopus (Scipopus) ruficeps
 - Scipopus (Scipopus) ruficeps Hendel, 1936 [ACCEPTED SPECIES 301819:BZDMV nidx=null]
 + Scipopus (Scipopus) ruficeps Hendel, 1936 [ACCEPTED SPECIES 303350:CJGT4 nidx=null]
Scopolia lateralis
 - Scopolia lateralis Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JX98 nidx=null]
 + Scopolia lateralis Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3Z6M nidx=null]
Scyllina calida
 - Scyllina calida [SYNONYM SPECIES 301819:8Q3VW nidx=null parent=5KVVP]
 + Scyllina calida (Bruner, 1904) [SYNONYM SPECIES 303350:CJG3P nidx=null parent=5KVVP]
Scyllina conspersa
 - Scyllina conspersa [SYNONYM SPECIES 301819:8PJXC nidx=null parent=4RZR8]
 + Scyllina conspersa (Bruner, 1904) [SYNONYM SPECIES 303350:4W58Q nidx=null parent=4RZR8]
Scyllina patriae
 - Scyllina patriae [SYNONYM SPECIES 301819:8PJXD nidx=null parent=5KVVP]
 + Scyllina patriae (Scudder, 1901) [SYNONYM SPECIES 303350:4W58W nidx=null parent=5KVVP]
Semicypraea koninckii
 - †Semicypraea koninckii (Rouault, 1848) [ACCEPTED SPECIES 301819:8YK28 nidx=null]
 + Semicypraea koninckii (Rouault, 1850) [ACCEPTED SPECIES 303350:CJGDF nidx=null]
Sergia bisulcatus
 - Sergia bisulcatus (Wood-Mason & Alcock, 1891) [SYNONYM SPECIES 301819:CHGR8 nidx=null parent=9XWPX]
 + Sergia bisulcatus (Wood-Mason & Alcock, 1891) [SYNONYM SPECIES 303350:CJGPP nidx=null parent=9XWPX]
Sertularia (Desmoscyphus)
 - Sertularia (Desmoscyphus) [SYNONYM SUBGENUS 301819:BSB5B nidx=null parent=7PZJ7]
 + Sertularia (Desmoscyphus) Allman, 1876 [SYNONYM SUBGENUS 303350:CHXNW nidx=null parent=7PG52]
Setaphis formosanus
 - Setaphis formosanus Takahashi, 1931 [SYNONYM SPECIES 301819:9GWQH nidx=null parent=4VFMZ]
 + Setaphis formosanus [SYNONYM SPECIES 303350:8R2BP nidx=null parent=CJGPJ]
Setulia algira
 - Setulia algira Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JX9S nidx=null]
 + Setulia algira Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3Z7J nidx=null]
Sigmomorphina amygdaloides
 - †Sigmomorphina amygdaloides (Reuss, 1856) [ACCEPTED SPECIES 301819:83M7X nidx=null]
 + Sigmomorphina amygdaloides (Terquem, 1878) [SYNONYM SPECIES 303350:CJH68 nidx=null parent=6YPKY]
Skwala pusilla
 - Skwala pusilla [SYNONYM SPECIES 301819:8N4XX nidx=null parent=6YRPF]
 + Skwala pusilla (Klapálek, 1912) [SYNONYM SPECIES 303350:6Z3PK nidx=null parent=6YRPF]
Sminthurus repandus
 - Sminthurus repandus Ågren, 1903 [AMBIGUOUS_SYNONYM SPECIES 301819:CGDMT nidx=null parent=355HW]
 + Sminthurus repandus Ågren, 1902 [AMBIGUOUS_SYNONYM SPECIES 303350:CJGP8 nidx=null parent=3LDSP]
 + Sminthurus repandus Ågren, 1903 [AMBIGUOUS_SYNONYM SPECIES 303350:CJGP9 nidx=null parent=355HW]
Solarium moniliferum
 - Solarium moniliferum Michelin, 1833 [SYNONYM SPECIES 301819:B7F4C nidx=null parent=B7PGP]
 + Solarium moniliferum Bronn, 1831 [SYNONYM SPECIES 303350:CJGSS nidx=null parent=C5X9N]
Solenostoma contextum
 - Solenostoma contextum Kaal. ex Steph. [SYNONYM SPECIES 301819:9TYCL nidx=null parent=4Y6TG]
 + Solenostoma contextum Kaal. ex Steph. [SYNONYM SPECIES 303350:CJGV8 nidx=null parent=4Y6TG]
Spathosternum nigro-taeniatum
 - Spathosternum nigro-taeniatum [SYNONYM SPECIES 301819:BT9CJ nidx=null parent=4YGNM]
 + Spathosternum nigro-taeniatum (Stål, 1876) [SYNONYM SPECIES 303350:8PK5H nidx=null parent=4YGNM]
Sphaerophoria (Sphaerophoria) nigricoxa
 - Sphaerophoria (Sphaerophoria) nigricoxa Zetterstedt, 1843 [ACCEPTED SPECIES 301819:BZDTK nidx=null]
 + Sphaerophoria (Sphaerophoria) nigricoxa Zetterstedt, 1843 [ACCEPTED SPECIES 303350:CJHCP nidx=null]
Sphaerophoria (Sphaerophoria) robusta
 - Sphaerophoria (Sphaerophoria) robusta Curran, 1930 [ACCEPTED SPECIES 301819:C4NG9 nidx=null]
 + Sphaerophoria (Sphaerophoria) robusta Curran, 1930 [ACCEPTED SPECIES 303350:CJHCQ nidx=null]
Sphagnum gracilescens
 - Sphagnum gracilescens Hampe ex Müll. Hal. [ACCEPTED SPECIES 301819:9KV52 nidx=null]
 + Sphagnum gracilescens Hampe ex Müll. Hal. [ACCEPTED SPECIES 303350:CJHDZ nidx=null]
Sphagnum imbricatum
 - Sphagnum imbricatum Hornsch. ex Russow [ACCEPTED SPECIES 301819:4YT95 nidx=null]
 + Sphagnum imbricatum Hornsch. ex Russow [ACCEPTED SPECIES 303350:CJHF2 nidx=null]
Sphagnum teres
 - Sphagnum teres (Schimp.) Ångstr. ex C. Hartm. [ACCEPTED SPECIES 301819:9KV66 nidx=null]
 + Sphagnum teres (Schimp.) Ångstr. ex C. Hartm. [ACCEPTED SPECIES 303350:CJHFH nidx=null]
Spherillo nigroflavus
 - Spherillo nigroflavus Wahrberg, 1922 [SYNONYM SPECIES 301819:4YY9G nidx=null parent=328BQ]
 + Spherillo nigroflavus Wahrberg, 1922 [SYNONYM SPECIES 303350:4YY9F nidx=null parent=328BQ]
Sphyrotarsus hervibazini
 - Sphyrotarsus hervibazini (Parent, 1914) [SYNONYM SPECIES 301819:8F4C5 nidx=null parent=9HRYG]
 + Sphyrotarsus hervibazini (Parent, 1914) [SYNONYM SPECIES 303350:92X3Z nidx=null parent=9HRYG]
Spineoterebra spinulosa
 - †Spineoterebra spinulosa (Doderlein, 1862) [ACCEPTED SPECIES 301819:C8FL6 nidx=null]
 + Spineoterebra spinulosa (Doderlein, 1864) [SYNONYM SPECIES 303350:CJHR3 nidx=null parent=CJN3C]
Spirographis spallanzanii
 - Spirographis spallanzanii (Viviani, 1805) [SYNONYM SPECIES 301819:6ZB97 nidx=null parent=6WYS2]
 + Spirographis spallanzanii (Gmelin, 1791) [SYNONYM SPECIES 303350:CJHTN nidx=null parent=6WYS2]
Spirorbis (Laeospira) tridentatus
 - Spirorbis (Laeospira) tridentatus Levinsen, 1884 [SYNONYM SPECIES 301819:CHHXN nidx=null parent=4Z8FK]
 + Spirorbis (Laeospira) tridentatus Levinsen, 1884 [SYNONYM SPECIES 303350:CJHV7 nidx=null parent=4Z8FK]
Spirula prototypus
 - Spirula prototypus Péron, 1804 [SYNONYM SPECIES 301819:7T7CB nidx=null parent=6ZCK6]
 + Spirula prototypus [SYNONYM SPECIES 303350:CJGBZ nidx=null parent=6ZCK6]
Spondylus gumanomocon
 - †Spondylus gumanomocon A. P. Brown & Pilsbry, 1913 [ACCEPTED SPECIES 301819:BRDSX nidx=null]
 + Spondylus gumanomocon A. P. Brown & Pilsbry, 1913 [ACCEPTED SPECIES 303350:BLLW9 nidx=null]
Stalechlora viridicata orientalls
 - Stalechlora viridicata orientalls [SYNONYM SUBSPECIES 301819:8Q6FZ nidx=null parent=7L3LD]
 + Stalechlora viridicata orientalls Roberts & Carbonell, 1992 [SYNONYM SUBSPECIES 303350:CJGM9 nidx=null parent=7L3LD]
Stalechlora viridicata paraguayensls
 - Stalechlora viridicata paraguayensls [SYNONYM SUBSPECIES 301819:8Q6G2 nidx=null parent=7KRLB]
 + Stalechlora viridicata paraguayensls Roberts & Carbonell, 1992 [SYNONYM SUBSPECIES 303350:CJGMB nidx=null parent=7KRLB]
Stenhelia (Delavalia) coineauae
 - Stenhelia (Delavalia) coineauae Soyer, 1972 [SYNONYM SPECIES 301819:CHGYB nidx=null parent=34FN3]
 + Stenhelia (Delavalia) coineauae Soyer, 1972 [SYNONYM SPECIES 303350:CJGWN nidx=null parent=34FN3]
Stenobothrus (Omocestus)
 - Stenobothrus (Omocestus) Bolívar, 1878 [SYNONYM SUBGENUS 301819:CH425 nidx=null parent=8NW9D]
 + Stenobothrus (Omocestus) Bolívar, 1878 [SYNONYM SUBGENUS 303350:CJ3Z4 nidx=null parent=8NW9D]
Steromphala cineroides
 - †Steromphala cineroides (S. V. Wood, 1842) [ACCEPTED SPECIES 301819:7T8BL nidx=null]
 + Steromphala cineroides (S. V. Wood, 1848) [ACCEPTED SPECIES 303350:CJHCM nidx=null]
Stichopogon (Stichopogon) griseomaculatus
 - Stichopogon (Stichopogon) griseomaculatus Villeneuve, 1910 [ACCEPTED SPECIES 301819:BZDWS nidx=null]
 + Stichopogon (Stichopogon) griseomaculatus Villeneuve, 1910 [ACCEPTED SPECIES 303350:CJHDQ nidx=null]
Stichopogon (Stichopogon) spinimanus
 - Stichopogon (Stichopogon) spinimanus Pokorny, 1887 [ACCEPTED SPECIES 301819:BZDWT nidx=null]
 + Stichopogon (Stichopogon) spinimanus Pokorny, 1887 [ACCEPTED SPECIES 303350:CJHDR nidx=null]
Stictocoris preyssleri
 - Stictocoris preyssleri (Herrich-Schäffer, 1838) [SYNONYM SPECIES 301819:CGG6T nidx=null parent=8RMYM]
 + Stictocoris preyssleri (Herrich-Schäffer, 1838) [SYNONYM SPECIES 303350:CJHFM nidx=null parent=8RMYM]
Stipator minutus
 - Stipator minutus [SYNONYM SPECIES 301819:8PKBH nidx=null parent=75Y5H]
 + Stipator minutus (Thomas, 1870) [SYNONYM SPECIES 303350:52RMN nidx=null parent=75Y5H]
Stobbea zolotarevskii
 - Stobbea zolotarevskii [SYNONYM SPECIES 301819:8PKBN nidx=null parent=52SW4]
 + Stobbea zolotarevskii Chopard, 1947 [SYNONYM SPECIES 303350:CJHNG nidx=null parent=52SW4]
Stobbea zolotarewskyi
 - Stobbea zolotarewskyi [SYNONYM SPECIES 301819:8Q46F nidx=null parent=52SW4]
 + Stobbea zolotarewskyi Chopard, 1947 [SYNONYM SPECIES 303350:CJHNH nidx=null parent=52SW4]
Striarca (Arcopsis)
 - Striarca (Arcopsis) Koenen, 1885 [SYNONYM SUBGENUS 301819:CGRHG nidx=null parent=7NPLY]
 + Striarca (Arcopsis) Koenen, 1885 [SYNONYM SUBGENUS 303350:CHRD6 nidx=null parent=7NPLY]
Strigea macrocronophora
 - Strigea macrocronophora Dubois & Rausch, 1950 [ACCEPTED SPECIES 301819:B3D58 nidx=null]
 + Strigea macrocronophora Dubois & Rausch, 1948 [ACCEPTED SPECIES 303350:CJHWK nidx=null]
Strigea sphaerocephala
 - Strigea sphaerocephala (Westrumb, 1823) Dubois, 1937 [ACCEPTED SPECIES 301819:B3D4R nidx=null]
 + Strigea sphaerocephala (Westrumb, 1823) Skrjabin, 1923 [ACCEPTED SPECIES 303350:CJHWL nidx=null]
Strigea sphaerula intermedia
 - Strigea sphaerula intermedia Szidat, 1932 [SYNONYM SUBSPECIES 301819:B3D2V nidx=null parent=B3D3B]
 + Strigea sphaerula intermedia Sudarikov, 1959 [SYNONYM SUBSPECIES 303350:CJHWM nidx=null parent=B3D3B]
Strombus (Doxander) vittatus entropi
 - Strombus (Doxander) vittatus entropi Man in 't Veld & Visser, 1993 [SYNONYM SUBSPECIES 301819:CGFH2 nidx=null parent=7R4WK]
 + Strombus (Doxander) vittatus entropi Man in 't Veld & Visser, 1993 [SYNONYM SUBSPECIES 303350:CJGYG nidx=null parent=7R4WK]
Strongylosoma sagittarius
 - Strongylosoma sagittarius Karsch, 1881 [ACCEPTED SPECIES 301819:CHH3H nidx=null]
 + Strongylosoma sagittarius Karsch, 1881 [ACCEPTED SPECIES 303350:CJGZV nidx=null]
Subemarginula cratitioides
 - Subemarginula cratitioides Yokoyama, 1926 [SYNONYM SPECIES 301819:BHKJN nidx=null parent=7S6V4]
 + Subemarginula cratitioides Yokoyama, 1924 [SYNONYM SPECIES 303350:CJH8J nidx=null parent=7S6V4]
Suzukia (Pheosiopsis) luscinicola
 - Suzukia (Pheosiopsis) luscinicola Nakamura, 1973 [SYNONYM SPECIES 301819:98GBT nidx=null parent=946X6]
 + Suzukia (Pheosiopsis) luscinicola Nakamura, 1973 [SYNONYM SPECIES 303350:BRDV8 nidx=null parent=946X6]
Sweltsa revelstoki
 - Sweltsa revelstoki [SYNONYM SPECIES 301819:8N55B nidx=null parent=53JMJ]
 + Sweltsa revelstoki Jewett, 1955 [SYNONYM SPECIES 303350:53JMK nidx=null parent=53JMJ]
Sweltsa townsi
 - Sweltsa townsi [SYNONYM SPECIES 301819:8NHDR nidx=null parent=53JMQ]
 + Sweltsa townsi Ricker, 1952 [SYNONYM SPECIES 303350:CJHD8 nidx=null parent=53JMQ]
Syncorine
 - Syncorine Spagnoli, 1871 [SYNONYM GENUS 301819:BDXHQ nidx=null parent=7NTLN]
 + Syncorine Ehrenberg, 1834 [SYNONYM GENUS 303350:CJHPR nidx=null parent=7NTLN]
Syncoryne
 - Syncoryne Steenstrup, 1842 [SYNONYM GENUS 301819:BDXHS nidx=null parent=7NTLN]
 + Syncoryne Ehrenberg, 1834 [SYNONYM GENUS 303350:CJHPS nidx=null parent=7NTLN]
Syrrhopodon tristichus
 - Syrrhopodon tristichus Nees ex Schwägr. [ACCEPTED SPECIES 301819:5444B nidx=null]
 + Syrrhopodon tristichus Nees ex Schwägr. [ACCEPTED SPECIES 303350:CJHVV nidx=null]
Tabanus (Tabanus) trichinopolis
 - Tabanus (Tabanus) trichinopolis Ricardo, 1914 [ACCEPTED SPECIES 301819:CHJ33 nidx=null]
 + Tabanus (Tabanus) trichinopolis Ricardo, 1914 [ACCEPTED SPECIES 303350:CJHXT nidx=null]
Tachydromyia sericea
 - Tachydromyia sericea Macquart, 1823 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JXY3 nidx=null]
 + Tachydromyia sericea Macquart, 1823 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZLH nidx=null]
Tanita semlikianae
 - Tanita semlikianae [SYNONYM SPECIES 301819:8Q49D nidx=null parent=5KT3X]
 + Tanita semlikianae (Rehn, 1914) [SYNONYM SPECIES 303350:CJJGQ nidx=null parent=5KT3X]
Tanyderites admirandus
 - †Tanyderites admirandus Kalugina, 1985 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JXZ6 nidx=null]
 + Tanyderites admirandus Kalugina, 1985 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZMD nidx=null]
Tanytarsus longipes
 - Tanytarsus longipes Akhrorov, 1967 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY44 nidx=null]
 + Tanytarsus longipes Akhrorov, 1967 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZMV nidx=null]
Tapes (Callistotapes)
 - Tapes (Callistotapes) Sacco, 1900 [SYNONYM SUBGENUS 301819:CGTLY nidx=null parent=7PD2J]
 + Tapes (Callistotapes) Sacco, 1900 [SYNONYM SUBGENUS 303350:CHTJK nidx=null parent=7PD2J]
Taphronota (Taphronota) ferruginea apicornis
 - Taphronota (Taphronota) ferruginea apicornis [SYNONYM SUBSPECIES 301819:8Q6GH nidx=null parent=7L5YC]
 + Taphronota (Taphronota) ferruginea apicornis Fairmaire, 1858 [SYNONYM SUBSPECIES 303350:CJJKG nidx=null parent=7L5YC]
Taramassus cunctator sjostedti
 - Taramassus cunctator sjostedti [SYNONYM SUBSPECIES 301819:8Q6GJ nidx=null parent=5LF55]
 + Taramassus cunctator sjostedti Ramme, 1929 [SYNONYM SUBSPECIES 303350:CJJLN nidx=null parent=5LF55]
Tarsolepis (Tarsolepis) remicauda
 - Tarsolepis (Tarsolepis) remicauda Butler, 1872 [ACCEPTED SPECIES 301819:93QLT nidx=null]
 + Tarsolepis (Tarsolepis) remicauda Butler, 1872 [ACCEPTED SPECIES 303350:CJHBH nidx=null]
Taxicera
 - Taxicera Mulsant & Rey, 1874 [SYNONYM GENUS 301819:CHHFS nidx=null parent=9JNPD]
 + Taxicera Mulsant & Rey, 1874 [SYNONYM GENUS 303350:CJHD4 nidx=null parent=9JNPD]
 + Taxicera Mulsant & Rey, 1875 [SYNONYM GENUS 303350:CJHD5 nidx=null parent=9JNPD]
Tedania (Tedaniopsis) actiniiformis
 - Tedania (Tedaniopsis) actiniiformis Ridley & Dendy, 1886 [SYNONYM SPECIES 301819:CHHH8 nidx=null parent=7BN2L]
 + Tedania (Tedaniopsis) actiniiformis Ridley & Dendy, 1886 [SYNONYM SPECIES 303350:CJHFD nidx=null parent=7BN2L]
Tegastes neapolitanus
 - Tegastes neapolitanus (Claus, 1885) [ACCEPTED SPECIES 301819:5545Z nidx=null]
 + Tegastes neapolitanus (Claus, 1863) [ACCEPTED SPECIES 303350:CJHFJ nidx=null]
Tegra novae-hollandiae novae-hollandiae
 - Tegra novae-hollandiae novae-hollandiae [SYNONYM SUBSPECIES 301819:8PM7J nidx=null parent=5LFK5]
 + Tegra novae-hollandiae novae-hollandiae Haan, 1843 [SYNONYM SUBSPECIES 303350:CJHH2 nidx=null parent=5LFK5]
Temnocheilus
 - †Temnocheilus M'Coy, 1844 [ACCEPTED GENUS 301819:CH85W nidx=null]
 + Temnocheilus F. McCoy, 1844 [ACCEPTED GENUS 303350:CJ87H nidx=null]
Tendipes allothrix
 - Tendipes allothrix Kieffer, 1912 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5G nidx=null]
 + Tendipes allothrix Kieffer, 1912 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZN8 nidx=null]
Tendipes armatifrons
 - Tendipes armatifrons Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5L nidx=null]
 + Tendipes armatifrons Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZN9 nidx=null]
Tendipes atrifurea
 - Tendipes atrifurea Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5Q nidx=null]
 + Tendipes atrifurea Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZNB nidx=null]
Tendipes brunetttii
 - Tendipes brunetttii Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5V nidx=null]
 + Tendipes brunetttii Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZNC nidx=null]
Tendipes inermifrons
 - Tendipes inermifrons Kieffer, 1916 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY7D nidx=null]
 + Tendipes inermifrons Kieffer, 1916 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZNH nidx=null]
Tendipes sessilis
 - Tendipes sessilis Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY7Z nidx=null]
 + Tendipes sessilis Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZNJ nidx=null]
Tephritis macula
 - Tephritis macula Fabricius, 1805 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY8S nidx=null]
 + Tephritis macula Fabricius, 1805 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZNM nidx=null]
Terebra luandensis
 - Terebra luandensis Aubry, 2008 [ACCEPTED SPECIES 301819:7TC3D nidx=null]
 + Terebra luandensis Aubry, 2008 [SYNONYM SPECIES 303350:7BRSL nidx=null parent=CJNMR]
Terebra pseudoturbonilla
 - Terebra pseudoturbonilla Talavera, 1975 [SYNONYM SPECIES 301819:7TC5J nidx=null parent=7C3RQ]
 + Terebra pseudoturbonilla Talavera, 1975 [ACCEPTED SPECIES 303350:7BRTH nidx=null]
Terebra reticulare
 - Terebra reticulare (Pecchioli, 1891) [SYNONYM SPECIES 301819:7BS42 nidx=null parent=7C3RQ]
 + Terebra reticulare Sacco, 1891 [SYNONYM SPECIES 303350:CJHSY nidx=null parent=CJHSX]
Terebra reticularis
 - Terebra reticularis (Pecchioli, 1891) [ACCEPTED SPECIES 301819:7C3RQ nidx=null]
 + Terebra reticularis Sacco, 1891 [ACCEPTED SPECIES 303350:CJHSX nidx=null]
Terebra spinulosa
 - Terebra spinulosa Doderlein, 1862 [SYNONYM SPECIES 301819:C8HKZ nidx=null parent=C8FL6]
 + Terebra spinulosa Doderlein, 1864 [SYNONYM SPECIES 303350:CJHSZ nidx=null parent=CJN3C]
Tetragoniceps
 - Tetragoniceps Brady & Robertson, 1876 [ACCEPTED GENUS 301819:7Q43M nidx=null]
 + Tetragoniceps Brady & Robertson, 1880 [ACCEPTED GENUS 303350:CJHXV nidx=null]
Tettigonia fitchii
 - Tettigonia fitchii Signoret, 1855 [SYNONYM SPECIES 301819:CGH5G nidx=null parent=74KL4]
 + Tettigonia fitchii Signoret, 1855 [SYNONYM SPECIES 303350:CJJ86 nidx=null parent=74KL4]
Thamnotettix colonus
 - Thamnotettix colonus (Uhler, 1895) [SYNONYM SPECIES 301819:CHJM2 nidx=null parent=7DJVP]
 + Thamnotettix colonus (Uhler, 1895) [SYNONYM SPECIES 303350:CJJHF nidx=null parent=7DJVP]
Theloderma leporosum
 - Theloderma leporosum Tschudi, 1838 [ACCEPTED SPECIES 301819:568HT nidx=null]
 + Theloderma leporosum Tschudi, 1838 [ACCEPTED SPECIES 303350:CJJMB nidx=null]
Theodoxus (Pictoneritina)
 - Theodoxus (Pictoneritina) Iredale, 1936 [SYNONYM SUBGENUS 301819:CGW2M nidx=null parent=7NZZX]
 + Theodoxus (Pictoneritina) Iredale, 1936 [SYNONYM SUBGENUS 303350:CHVZC nidx=null parent=7NZZX]
Thereva nigella
 - Thereva nigella Wiedemann, 1828 [PROVISIONALLY_ACCEPTED SPECIES 301819:9V8H7 nidx=null]
 + Thereva nigella Wiedemann, 1828 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZPY nidx=null]
Thoracaphis lithocarpi
 - Thoracaphis lithocarpi [SYNONYM SPECIES 301819:8QSSS nidx=null parent=9H33M]
 + Thoracaphis lithocarpi (Takahashi, 1929) [SYNONYM SPECIES 303350:CJK2K nidx=null parent=CJ7DL]
Thoracostomopsidae
 - Thoracostomopsidae De Coninck, 1965 [ACCEPTED FAMILY 301819:BXWJ3 nidx=null]
 + Thoracostomopsidae Filipjev, 1927 [ACCEPTED FAMILY 303350:87CC2 nidx=null]
Thricops (Lasiops) rufisquamus
 - Thricops (Lasiops) rufisquamus (Schnabl, 1915) [ACCEPTED SPECIES 301819:8FFFR nidx=null]
 + Thricops (Lasiops) rufisquamus (Schnabl, 1915) [ACCEPTED SPECIES 303350:7BXVP nidx=null]
Tibicen inauditus
 - Tibicen inauditus Davis, 1917 [SYNONYM SPECIES 301819:BPRPH nidx=null parent=3J6PY]
 + Tibicen inauditus Davis, 1917 [SYNONYM SPECIES 303350:CJHYR nidx=null parent=3J6PY]
Tipula florilega
 - Tipula florilega Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYDH nidx=null]
 + Tipula florilega Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZTK nidx=null]
Tipula vibratrix
 - Tipula vibratrix Linnaeus, 1761 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYHF nidx=null]
 + Tipula vibratrix Linnaeus, 1761 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZVP nidx=null]
Toarctocera subpunctata
 - †Toarctocera subpunctata (Münster, 1844) [ACCEPTED SPECIES 301819:7TCRL nidx=null]
 + Toarctocera subpunctata (Münster, 1841) [ACCEPTED SPECIES 303350:CJJH7 nidx=null]
Tomellana lineata
 - Tomellana lineata (Lamarck, 1818) [ACCEPTED SPECIES 301819:57CLL nidx=null]
 + Tomellana lineata (Lamarck, 1816) [ACCEPTED SPECIES 303350:CJJK9 nidx=null]
Tortula epilosa
 - Tortula epilosa Broth. ex Dusén [SYNONYM SPECIES 301819:9T38M nidx=null parent=7B9NY]
 + Tortula epilosa Broth. ex Dusén [SYNONYM SPECIES 303350:CJJQ5 nidx=null parent=7B9NY]
Tortula muralis var. heribaudii
 - Tortula muralis var. heribaudii (Corb.) Corb. [SYNONYM VARIETY 301819:9TFZY nidx=null parent=57HVC]
 + Tortula muralis var. heribaudii (Corb.) Culm. [SYNONYM VARIETY 303350:CJJQB nidx=null parent=57HVC]
Tortula papillosa
 - Tortula papillosa Wilson ex Spruce [SYNONYM SPECIES 301819:9MQQV nidx=null parent=9KWPR]
 + Tortula papillosa Wilson ex Spruce [SYNONYM SPECIES 303350:CJJQC nidx=null parent=9KWPR]
Tortula perlimbata
 - Tortula perlimbata Geh. ex Cardot [SYNONYM SPECIES 301819:9T3GT nidx=null parent=57HWJ]
 + Tortula perlimbata Geh. ex Cardot [SYNONYM SPECIES 303350:CJJQD nidx=null parent=57HWJ]
Tortula rigida
 - Tortula rigida (Hedw.) Schrad. ex Turner [AMBIGUOUS_SYNONYM SPECIES 301819:9N6L3 nidx=null parent=C4CJ]
 + Tortula rigida (Hedw.) Schrad. ex Turner [AMBIGUOUS_SYNONYM SPECIES 303350:CJJQF nidx=null parent=C4CJ]
Toxoptera rotundiventris
 - Toxoptera rotundiventris [SYNONYM SPECIES 301819:8QWFD nidx=null parent=BWFDW]
 + Toxoptera rotundiventris (Signoret) [SYNONYM SPECIES 303350:CJJTY nidx=null parent=CJGHB]
Trachyleberis (Rectotrachyleberis) edwardsii
 - Trachyleberis (Rectotrachyleberis) edwardsii (Roemer, 1838) Ruggieri, 1952 [SYNONYM SPECIES 301819:85Z6N nidx=null parent=85P3N]
 + Trachyleberis (Rectotrachyleberis) edwardsii (Roemer, 1838) [SYNONYM SPECIES 303350:CJJY9 nidx=null parent=85P3N]
Trachyleberis edwardsii
 - Trachyleberis edwardsii (Roemer, 1838) Ruggieri, 1950 [SYNONYM SPECIES 301819:85Z8J nidx=null parent=85P3N]
 + Trachyleberis edwardsii (Roemer, 1838) [SYNONYM SPECIES 303350:CJJYB nidx=null parent=85P3N]
Trachyleberis edwardsii edwardsii
 - Trachyleberis edwardsii edwardsii (Roemer, 1838) Ruggieri, 1950 [SYNONYM SUBSPECIES 301819:862QW nidx=null parent=86233]
 + Trachyleberis edwardsii edwardsii (Roemer, 1838) [SYNONYM SUBSPECIES 303350:CJJYC nidx=null parent=86233]
Trichocladius atriforceps
 - Trichocladius atriforceps Kieffer, 1924 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYJG nidx=null]
 + Trichocladius atriforceps Kieffer, 1924 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZXZ nidx=null]
Trichocladius sahorensis
 - Trichocladius sahorensis Kieffer, 1926 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYQG nidx=null]
 + Trichocladius sahorensis Kieffer, 1926 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZY3 nidx=null]
Trichocladius terricola
 - Trichocladius terricola Kieffer, 1919 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYQX nidx=null]
 + Trichocladius terricola Kieffer, 1919 [PROVISIONALLY_ACCEPTED SPECIES 303350:B3ZY4 nidx=null]
Trichophthalma (Lichtwardtiomyia) longirostris
 - Trichophthalma (Lichtwardtiomyia) longirostris Mackerras, 1925 [ACCEPTED SPECIES 301819:CGKBB nidx=null]
 + Trichophthalma (Lichtwardtiomyia) longirostris Mackerras, 1925 [ACCEPTED SPECIES 303350:CJKPV nidx=null]
Trichopoda (Galactomyia) flavicornis
 - Trichopoda (Galactomyia) flavicornis Robineau-Desvoidy, 1830 [ACCEPTED SPECIES 301819:CHJ3F nidx=null]
 + Trichopoda (Galactomyia) flavicornis Robineau-Desvoidy, 1830 [ACCEPTED SPECIES 303350:CJHXY nidx=null]
Trichosteleum angustirete
 - Trichosteleum angustirete Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:58KMH nidx=null]
 + Trichosteleum angustirete Dixon ex E.B. Bartram [ACCEPTED SPECIES 303350:CJHZT nidx=null]
Trichostomum baurianum
 - Trichostomum baurianum Warnst. ex J.J. Amann [SYNONYM SPECIES 301819:9N6Q4 nidx=null parent=9LG9F]
 + Trichostomum baurianum Warnst. ex J.J. Amann [SYNONYM SPECIES 303350:CJHZZ nidx=null parent=9LG9F]
Trichostomum heteromallum
 - Trichostomum heteromallum Lindb. ex Austin [SYNONYM SPECIES 301819:9N6QJ nidx=null parent=6DC8X]
 + Trichostomum heteromallum Lindb. ex Austin [SYNONYM SPECIES 303350:CJJ22 nidx=null parent=6DC8X]
Trigonocelia
 - Trigonocelia G. B. Sowerby I, 1846 [SYNONYM GENUS 301819:BGSWV nidx=null parent=7P7JW]
 + Trigonocelia [SYNONYM GENUS 303350:CJJCS nidx=null parent=7P7JW]
Tripteroides (Rachionotomyia) pallidothorax
 - Tripteroides (Rachionotomyia) pallidothorax Dong, Dong & Wu, 2008 [ACCEPTED SPECIES 301819:8FJHF nidx=null]
 + Tripteroides (Rachionotomyia) pallidothorax Dong, Dong & Wu, 2008 [ACCEPTED SPECIES 303350:58ZG8 nidx=null]
Trishoplita goodwinii var. suprazonata
 - Trishoplita goodwinii var. suprazonata Pilsbry, 1900 [SYNONYM VARIETY 301819:852NK nidx=null parent=7TF6D]
 + Trishoplita goodwinii var. suprazonata Pilsbry, 1900 [SYNONYM VARIETY 303350:7V9P9 nidx=null parent=7TF6D]
Tritomaria exsecta
 - Tritomaria exsecta (Schmidel) Schiffn. ex Loeske [ACCEPTED SPECIES 301819:594P2 nidx=null]
 + Tritomaria exsecta (Schmidel) Schiffn. ex Loeske [ACCEPTED SPECIES 303350:CJJPZ nidx=null]
Trochus grayanus
 - Trochus grayanus R. A. Philippi, 1846 [SYNONYM SPECIES 301819:5985H nidx=null parent=6KFJ9]
 + Trochus grayanus R. A. Philippi, 1855 [SYNONYM SPECIES 303350:CJJWL nidx=null parent=7TBJF]
Trochus lenticularis
 - Trochus lenticularis Lamarck, 1822 [SYNONYM SPECIES 301819:59875 nidx=null parent=43TXD]
 + Trochus lenticularis Chemnitz, 1781 [SYNONYM SPECIES 303350:CJJWP nidx=null parent=43TXD]
Troglophilus (Troglophilus) andrenii
 - Troglophilus (Troglophilus) andrenii [SYNONYM SPECIES 301819:8Q4LT nidx=null parent=5LMRQ]
 + Troglophilus (Troglophilus) andrenii Capra, 1927 [SYNONYM SPECIES 303350:CJJX9 nidx=null parent=5LMRQ]
Truxalis crenatus
 - Truxalis crenatus [SYNONYM SPECIES 301819:8Q4MS nidx=null parent=JJNV]
 + Truxalis crenatus (Fabricius, 1793) [SYNONYM SPECIES 303350:CJK47 nidx=null parent=JJNV]
Tuberocephalus sasaki
 - Tuberocephalus sasaki Matsumura, 1917 [AMBIGUOUS_SYNONYM SPECIES 301819:CHKB9 nidx=null parent=C46NV]
 + Tuberocephalus sasaki Matsumura, 1917 [AMBIGUOUS_SYNONYM SPECIES 303350:CJK7T nidx=null parent=C46NV]
Turbo sangarensis
 - Turbo sangarensis Schrenck, 1862 [SYNONYM SPECIES 301819:9GSX9 nidx=null parent=B6DS6]
 + Turbo sangarensis Schrenck, 1861 [SYNONYM SPECIES 303350:59N88 nidx=null parent=B6DS6]
Turbonilla alta
 - Turbonilla alta Clessin, 1902 [ACCEPTED SPECIES 301819:59NDT nidx=null]
 + Turbonilla alta Clessin, 1900 [ACCEPTED SPECIES 303350:CJKDD nidx=null]
Turritella (Cerithium)
 - Turritella (Cerithium) Bruguière, 1789 [SYNONYM SUBGENUS 301819:CFJVM nidx=null parent=7PKCR]
 + Turritella (Cerithium) Bruguière, 1789 [SYNONYM SUBGENUS 303350:CHTMK nidx=null parent=7PKCR]
Tylopyge panidorsa
 - Tylopyge panidorsa [SYNONYM SPECIES 301819:8NGVD nidx=null parent=4CVV3]
 + Tylopyge panidorsa (Klapálek, 1913) [SYNONYM SPECIES 303350:CJKJY nidx=null parent=4CVV3]
Typhis (Typhis)
 - Typhis (Typhis) Montfort, 1810 [SYNONYM SUBGENUS 301819:CH8D9 nidx=null parent=7PKF6]
 + Typhis (Typhis) Montfort, 1810 [SYNONYM SUBGENUS 303350:CJ8LJ nidx=null parent=7PKF6]
Typhis cuniculosus
 - †Typhis cuniculosus Duchâtel in Bronn, 1848 [ACCEPTED SPECIES 301819:59VBG nidx=null]
 + Typhis cuniculosus (Nyst, 1836) [SYNONYM SPECIES 303350:CJKL8 nidx=null parent=CJN2Z]
Typophyllum erosum
 - Typophyllum erosum [SYNONYM SPECIES 301819:BTH8B nidx=null parent=BTC67]
 + Typophyllum erosum (Stoll, 1813) [SYNONYM SPECIES 303350:CJKNQ nidx=null parent=BTC67]
Typophyllum rufifolium
 - Typophyllum rufifolium [SYNONYM SPECIES 301819:8PL69 nidx=null parent=BTC67]
 + Typophyllum rufifolium (Chopard, 1919) [SYNONYM SPECIES 303350:59YJJ nidx=null parent=BTC67]
Udenus wnigrum
 - Udenus wnigrum [SYNONYM SPECIES 301819:8PL6N nidx=null parent=7DDC4]
 + Udenus wnigrum Brunner von Wattenwyl, 1900 [SYNONYM SPECIES 303350:CJKV9 nidx=null parent=7DDC4]
Unio (Anodonta) smaragdinus
 - Unio (Anodonta) smaragdinus Anton, 1838 [SYNONYM SPECIES 301819:CHJJ3 nidx=null parent=ZHZH]
 + Unio (Anodonta) smaragdinus Anton, 1838 [SYNONYM SPECIES 303350:CJJDS nidx=null parent=ZHZH]
Unio (Elliptio) buckleyi
 - Unio (Elliptio) buckleyi I. Lea, 1843 [SYNONYM SPECIES 301819:CHKW3 nidx=null parent=39BKC]
 + Unio (Elliptio) buckleyi I. Lea, 1843 [SYNONYM SPECIES 303350:CJKR5 nidx=null parent=39BKC]
Unio (Elliptio) chipolaensis
 - Unio (Elliptio) chipolaensis B. Walker, 1905 [SYNONYM SPECIES 301819:CGKCT nidx=null parent=39BJ5]
 + Unio (Elliptio) chipolaensis B. Walker, 1905 [SYNONYM SPECIES 303350:CJKR8 nidx=null parent=39BJ5]
Unio (Elliptio) differtus
 - Unio (Elliptio) differtus I. Lea, 1872 [SYNONYM SPECIES 301819:C8L4J nidx=null parent=39BJ9]
 + Unio (Elliptio) differtus I. Lea, 1872 [SYNONYM SPECIES 303350:CJKRB nidx=null parent=39BJ9]
Unio (Elliptio) folliculatus
 - Unio (Elliptio) folliculatus I. Lea, 1838 [SYNONYM SPECIES 301819:CHKWB nidx=null parent=39BJV]
 + Unio (Elliptio) folliculatus I. Lea, 1838 [SYNONYM SPECIES 303350:CJKRD nidx=null parent=39BJV]
Unio (Elliptio) hopetonensis
 - Unio (Elliptio) hopetonensis I. Lea, 1838 [SYNONYM SPECIES 301819:CHKWH nidx=null parent=39BK8]
 + Unio (Elliptio) hopetonensis I. Lea, 1838 [SYNONYM SPECIES 303350:CJKRF nidx=null parent=39BK8]
Unio (Elliptio) icterinus
 - Unio (Elliptio) icterinus Conrad, 1834 [SYNONYM SPECIES 301819:CFB4S nidx=null parent=39BK9]
 + Unio (Elliptio) icterinus Conrad, 1834 [SYNONYM SPECIES 303350:CJKRG nidx=null parent=39BK9]
Unio (Elliptio) inusitatis
 - Unio (Elliptio) inusitatis I. Lea, 1859 [SYNONYM SPECIES 301819:CHKWK nidx=null parent=39BK8]
 + Unio (Elliptio) inusitatis I. Lea, 1859 [SYNONYM SPECIES 303350:CJKRH nidx=null parent=39BK8]
Unio (Elliptio) lehmanii
 - Unio (Elliptio) lehmanii S. H. Wright, 1897 [SYNONYM SPECIES 301819:CGKDM nidx=null parent=39BL5]
 + Unio (Elliptio) lehmanii S. H. Wright, 1897 [SYNONYM SPECIES 303350:CJKRK nidx=null parent=39BL5]
Unio (Elliptio) obnubilus
 - Unio (Elliptio) obnubilus I. Lea, 1857 [SYNONYM SPECIES 301819:CHKWP nidx=null parent=39BK9]
 + Unio (Elliptio) obnubilus I. Lea, 1857 [SYNONYM SPECIES 303350:CJKRP nidx=null parent=39BK9]
Unio (Elliptio) polymorphus
 - Unio (Elliptio) polymorphus B. H. Wright, 1899 [SYNONYM SPECIES 301819:C8L62 nidx=null parent=39BKV]
 + Unio (Elliptio) polymorphus B. H. Wright, 1899 [SYNONYM SPECIES 303350:CJKRS nidx=null parent=39BKV]
Unio (Elliptio) pygmaeus
 - Unio (Elliptio) pygmaeus I. Lea, 1852 [SYNONYM SPECIES 301819:CF7GX nidx=null parent=3SH2W]
 + Unio (Elliptio) pygmaeus I. Lea, 1852 [SYNONYM SPECIES 303350:CJJDM nidx=null parent=3SH2W]
Unio (Elliptio) strigosus
 - Unio (Elliptio) strigosus I. Lea, 1840 [SYNONYM SPECIES 301819:CGHCL nidx=null parent=39BHV]
 + Unio (Elliptio) strigosus I. Lea, 1840 [SYNONYM SPECIES 303350:CJJDY nidx=null parent=39BHV]
Unio othcaloogensis
 - Unio othcaloogensis I. Lea, 1857 [SYNONYM SPECIES 301819:CHKXC nidx=null parent=6G7JZ]
 + Unio othcaloogensis I. Lea, 1857 [SYNONYM SPECIES 303350:CJKS7 nidx=null parent=6G7JZ]
Uromenus brevicollis trimacriae
 - Uromenus brevicollis trimacriae [SYNONYM SUBSPECIES 301819:8Q6H3 nidx=null parent=5LPT7]
 + Uromenus brevicollis trimacriae La Greca, 1964 [SYNONYM SUBSPECIES 303350:CJJL3 nidx=null parent=5LPT7]
Urophora (Urophora) hispanica
 - Urophora (Urophora) hispanica Strobl, 1905 [ACCEPTED SPECIES 301819:8FQ4T nidx=null]
 + Urophora (Urophora) hispanica Strobl, 1905 [ACCEPTED SPECIES 303350:7DY4T nidx=null]
Usia (Micrusia) novakii
 - Usia (Micrusia) novakii Strobl, 1902 [ACCEPTED SPECIES 301819:8FL5F nidx=null]
 + Usia (Micrusia) novakii Strobl, 1902 [ACCEPTED SPECIES 303350:7F39B nidx=null]
Usia (Micrusia) pusilla
 - Usia (Micrusia) pusilla Meigen, 1820 [ACCEPTED SPECIES 301819:8FL5H nidx=null]
 + Usia (Micrusia) pusilla Meigen, 1820 [ACCEPTED SPECIES 303350:7F39K nidx=null]
Usia (Micrusia) versicolor
 - Usia (Micrusia) versicolor (Fabricius, 1787) [ACCEPTED SPECIES 301819:8FL5N nidx=null]
 + Usia (Micrusia) versicolor (Fabricius, 1787) [ACCEPTED SPECIES 303350:7F2Y4 nidx=null]
Usia (Usia) accola
 - Usia (Usia) accola Becker, 1906 [ACCEPTED SPECIES 301819:8FL5P nidx=null]
 + Usia (Usia) accola Becker, 1906 [ACCEPTED SPECIES 303350:7F2YT nidx=null]
Usia (Usia) aenea
 - Usia (Usia) aenea (Rossi, 1794) [ACCEPTED SPECIES 301819:8FL5Q nidx=null]
 + Usia (Usia) aenea (Rossi, 1794) [ACCEPTED SPECIES 303350:7F2Z5 nidx=null]
Usia (Usia) aeneoides
 - Usia (Usia) aeneoides Paramonov, 1950 [ACCEPTED SPECIES 301819:8FL5S nidx=null]
 + Usia (Usia) aeneoides Paramonov, 1950 [ACCEPTED SPECIES 303350:7F2YS nidx=null]
Usia (Usia) albifrons
 - Usia (Usia) albifrons (Gmelin, 1790) [ACCEPTED SPECIES 301819:8FL5T nidx=null]
 + Usia (Usia) albifrons (Gmelin, 1790) [ACCEPTED SPECIES 303350:7F2Z4 nidx=null]
Usia (Usia) angustifrons
 - Usia (Usia) angustifrons Becker, 1906 [ACCEPTED SPECIES 301819:8FL5V nidx=null]
 + Usia (Usia) angustifrons Becker, 1906 [ACCEPTED SPECIES 303350:7F2YR nidx=null]
Usia (Usia) atrata
 - Usia (Usia) atrata (Fabricius, 1798) [ACCEPTED SPECIES 301819:8FL5X nidx=null]
 + Usia (Usia) atrata (Fabricius, 1798) [ACCEPTED SPECIES 303350:7F2Z2 nidx=null]
Usia (Usia) calva
 - Usia (Usia) calva Loew, 1869 [ACCEPTED SPECIES 301819:8FL5Z nidx=null]
 + Usia (Usia) calva Loew, 1869 [ACCEPTED SPECIES 303350:7F38Z nidx=null]
Usia (Usia) carmelitensis
 - Usia (Usia) carmelitensis Becker, 1906 [ACCEPTED SPECIES 301819:8FL62 nidx=null]
 + Usia (Usia) carmelitensis Becker, 1906 [ACCEPTED SPECIES 303350:7F2WY nidx=null]
Usia (Usia) crinipes
 - Usia (Usia) crinipes Becker, 1906 [ACCEPTED SPECIES 301819:8FL63 nidx=null]
 + Usia (Usia) crinipes Becker, 1906 [ACCEPTED SPECIES 303350:7F2WX nidx=null]
Usia (Usia) engeli
 - Usia (Usia) engeli Paramonov, 1950 [ACCEPTED SPECIES 301819:8FL67 nidx=null]
 + Usia (Usia) engeli Paramonov, 1950 [ACCEPTED SPECIES 303350:7F2X8 nidx=null]
Usia (Usia) florea
 - Usia (Usia) florea (Fabricius, 1794) [ACCEPTED SPECIES 301819:8FL69 nidx=null]
 + Usia (Usia) florea (Fabricius, 1794) [ACCEPTED SPECIES 303350:7F398 nidx=null]
Usia (Usia) ignorata
 - Usia (Usia) ignorata Becker, 1906 [ACCEPTED SPECIES 301819:8FL6C nidx=null]
 + Usia (Usia) ignorata Becker, 1906 [ACCEPTED SPECIES 303350:7F396 nidx=null]
Usia (Usia) incognita
 - Usia (Usia) incognita Paramonov, 1950 [ACCEPTED SPECIES 301819:8FL6D nidx=null]
 + Usia (Usia) incognita Paramonov, 1950 [ACCEPTED SPECIES 303350:7F2WT nidx=null]
Usia (Usia) lata
 - Usia (Usia) lata Loew, 1846 [ACCEPTED SPECIES 301819:8FL6G nidx=null]
 + Usia (Usia) lata Loew, 1846 [ACCEPTED SPECIES 303350:7F38T nidx=null]
Usia (Usia) manca
 - Usia (Usia) manca Loew, 1846 [ACCEPTED SPECIES 301819:8FL6H nidx=null]
 + Usia (Usia) manca Loew, 1846 [ACCEPTED SPECIES 303350:7F2XD nidx=null]
Usia (Usia) notata
 - Usia (Usia) notata Loew, 1873 [ACCEPTED SPECIES 301819:8FL6L nidx=null]
 + Usia (Usia) notata Loew, 1873 [ACCEPTED SPECIES 303350:7F2XB nidx=null]
Usia (Usia) pallescens
 - Usia (Usia) pallescens Becker, 1906 [ACCEPTED SPECIES 301819:8FL6M nidx=null]
 + Usia (Usia) pallescens Becker, 1906 [ACCEPTED SPECIES 303350:7F2XL nidx=null]
Usia (Usia) similis
 - Usia (Usia) similis Paramonov, 1950 [ACCEPTED SPECIES 301819:8FL6Q nidx=null]
 + Usia (Usia) similis Paramonov, 1950 [ACCEPTED SPECIES 303350:7F2XG nidx=null]
Usia (Usia) syriaca
 - Usia (Usia) syriaca Paramonov, 1950 [ACCEPTED SPECIES 301819:8FL6R nidx=null]
 + Usia (Usia) syriaca Paramonov, 1950 [ACCEPTED SPECIES 303350:7F2XF nidx=null]
Usia (Usia) unicolor
 - Usia (Usia) unicolor Loew, 1873 [ACCEPTED SPECIES 301819:8FL6V nidx=null]
 + Usia (Usia) unicolor Loew, 1873 [ACCEPTED SPECIES 303350:7F39T nidx=null]
Usia (Usia) vestita
 - Usia (Usia) vestita Macquart, 1846 [ACCEPTED SPECIES 301819:8FL6X nidx=null]
 + Usia (Usia) vestita Macquart, 1846 [ACCEPTED SPECIES 303350:7F39S nidx=null]
Vasostoma spiratum
 - Vasostoma spiratum Wieser, 1954 [ACCEPTED SPECIES 301819:89C9M nidx=null]
 + Vasostoma spiratum Wieser, 1954 [ACCEPTED SPECIES 303350:CJK5C nidx=null]
Vatana
 - Vatana Dworakowska, 1995 [SYNONYM GENUS 301819:8HSPC nidx=null parent=BYSNF]
 + Vatana Dworakowska, 1995 [SYNONYM GENUS 303350:CJK5H nidx=null parent=BYSNF]
Velarifictorus (Velarifictorus) vicinus
 - Velarifictorus (Velarifictorus) vicinus (Chopard, 1955) [ACCEPTED SPECIES 301819:7FKWZ nidx=null]
 + Velarifictorus (Velarifictorus) vicinus (Chopard, 1955) [ACCEPTED SPECIES 303350:CJK5S nidx=null]
Venus (Timoclea)
 - Venus (Timoclea) T. Brown, 1827 [SYNONYM SUBGENUS 301819:CGWGP nidx=null parent=7PJK7]
 + Venus (Timoclea) T. Brown, 1827 [SYNONYM SUBGENUS 303350:CHWFV nidx=null parent=7PJK7]
Vesicularia anisothecia
 - Vesicularia anisothecia Dixon ex E.B. Bartram [ACCEPTED SPECIES 301819:5B9KJ nidx=null]
 + Vesicularia anisothecia Dixon ex E.B. Bartram [ACCEPTED SPECIES 303350:CJKJR nidx=null]
Vitrina (Semilimax) kotulae
 - Vitrina (Semilimax) kotulae (Westerlund, 1883) [SYNONYM SPECIES 301819:CHKY8 nidx=null parent=3L69B]
 + Vitrina (Semilimax) kotulae (Westerlund, 1883) [SYNONYM SPECIES 303350:CJKTF nidx=null parent=3L69B]
Webera annotina var. bulbifera
 - Webera annotina var. bulbifera (Warnst.) Correns ex Dixon [SYNONYM VARIETY 301819:9TG7V nidx=null parent=4KWHF]
 + Webera annotina var. bulbifera (Warnst.) Correns ex Dixon [SYNONYM VARIETY 303350:CJJNY nidx=null parent=4KWHF]
Xerophlaeoba schulthessi
 - Xerophlaeoba schulthessi [SYNONYM SPECIES 301819:8Q4TZ nidx=null parent=5K32W]
 + Xerophlaeoba schulthessi (Bolívar, 1908) [SYNONYM SPECIES 303350:CJK8Y nidx=null parent=5K32W]
Xiphicera vindicata
 - Xiphicera vindicata [SYNONYM SPECIES 301819:8Q4VJ nidx=null parent=7L3LB]
 + Xiphicera vindicata (Serville, 1838) [SYNONYM SPECIES 303350:CJK9S nidx=null parent=7L3LB]
Xiphidiola (Xiphidiola) concolor
 - Xiphidiola (Xiphidiola) concolor Bolívar, 1906 [ACCEPTED SPECIES 301819:7FXDX nidx=null]
 + Xiphidiola (Xiphidiola) concolor Bolívar, 1906 [ACCEPTED SPECIES 303350:CJK9W nidx=null]
Xiphocera canescens
 - Xiphocera canescens [SYNONYM SPECIES 301819:BTHQS nidx=null parent=3RYJJ]
 + Xiphocera canescens (Thunberg, 1822) [SYNONYM SPECIES 303350:5CFHM nidx=null parent=3RYJJ]
Zabalius cazamancae
 - Zabalius cazamancae [SYNONYM SPECIES 301819:8Q522 nidx=null parent=5LTQH]
 + Zabalius cazamancae Pictet & Saussure, 1892 [SYNONYM SPECIES 303350:CJKQP nidx=null parent=5LTQH]
Zanklea
 - Zanklea Riedl, 1963 [SYNONYM GENUS 301819:BDXKZ nidx=null parent=7Q6W8]
 + Zanklea Gegenbaur, 1857 [SYNONYM GENUS 303350:CJKSR nidx=null parent=7Q6W8]
Zeradina (Radinista) vivienneae
 - Zeradina (Radinista) vivienneae Laws, 1939 [SYNONYM SPECIES 301819:CFB7X nidx=null parent=4R976]
 + Zeradina (Radinista) vivienneae Laws, 1939 [SYNONYM SPECIES 303350:CJKTX nidx=null parent=4R976]
Zichya spinosa
 - Zichya spinosa [SYNONYM SPECIES 301819:8Q52M nidx=null parent=34V56]
 + Zichya spinosa (Fischer von Waldheim, 1846) [SYNONYM SPECIES 303350:CJKZ2 nidx=null parent=34V56]
Zidona dufresnei
 - Zidona dufresnei (Donovan, 1823) [SYNONYM SPECIES 301819:9G6MD nidx=null parent=5D4TR]
 + Zidona dufresnei [SYNONYM SPECIES 303350:CJKTZ nidx=null parent=5D4TR]
Zonocerus rignaudii
 - Zonocerus rignaudii [SYNONYM SPECIES 301819:8Q52Q nidx=null parent=5KT3Y]
 + Zonocerus rignaudii (Guérin-Méneville, 1847) [SYNONYM SPECIES 303350:CJKZD nidx=null parent=5KT3Y]
Zygaena apicalielongata
 - Zygaena apicalielongata Vorbrodt, 1914 [AMBIGUOUS_SYNONYM SPECIES 301819:5D9GF nidx=null parent=93SFH]
 + Zygaena apicalielongata Vorbrodt, 1914 [AMBIGUOUS_SYNONYM SPECIES 303350:CJL2J nidx=null parent=93SFH]
 + Zygaena apicalielongata Vorbrodt, 1913 [SYNONYM SPECIES 303350:CJL2K nidx=null parent=944H5]
Zygaena confluens
 - Zygaena confluens Oberthür, 1911 [SYNONYM SPECIES 301819:CFBCR nidx=null parent=944G4]
 + Zygaena confluens Dziurzynski, 1906 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWC nidx=null parent=93SK6]
 + Zygaena confluens Dziurzynski, 1906 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWD nidx=null parent=93S9X]
 + Zygaena confluens [École Bordelaise], 1933 [SYNONYM SPECIES 303350:CJKWF nidx=null parent=944H2]
 + Zygaena confluens Reiss, 1931 [SYNONYM SPECIES 303350:CJKWG nidx=null parent=5LVBK]
 + Zygaena confluens Reiss, 1931 [SYNONYM SPECIES 303350:CJKWH nidx=null parent=5LVBL]
 + Zygaena confluens Holik & Reiss, 1932 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWJ nidx=null parent=93S9C]
 + Zygaena confluens Holik & Reiss, 1932 [SYNONYM SPECIES 303350:CJKWK nidx=null parent=9447W]
 + Zygaena confluens Burgeff, 1906 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWL nidx=null parent=93SHD]
 + Zygaena confluens Burgeff, 1906 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWM nidx=null parent=93SFH]
 + Zygaena confluens Burgeff, 1914 [SYNONYM SPECIES 303350:CJKWN nidx=null parent=9448Y]
 + Zygaena confluens Burgeff, 1914 [SYNONYM SPECIES 303350:CJKWP nidx=null parent=944GG]
 + Zygaena confluens Burgeff, 1914 [SYNONYM SPECIES 303350:CJKWQ nidx=null parent=98VJW]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 303350:CJKWR nidx=null parent=9448G]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 303350:CJKWS nidx=null parent=9447S]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 303350:CJKWT nidx=null parent=944H5]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 303350:CJKWV nidx=null parent=944NX]
 + Zygaena confluens Burgeff, 1926 [SYNONYM SPECIES 303350:CJKWW nidx=null parent=94F9H]
 + Zygaena confluens Dziurzynski, 1902 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWX nidx=null parent=93SFK]
 + Zygaena confluens Dziurzynski, 1902 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWY nidx=null parent=93SD2]
 + Zygaena confluens Dziurzynski, 1902 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKWZ nidx=null parent=93SJ6]
 + Zygaena confluens Dziurzynski, 1908 [SYNONYM SPECIES 303350:CJKX2 nidx=null parent=944HJ]
 + Zygaena confluens Dziurzynski, 1908 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKX3 nidx=null parent=93S9X]
 + Zygaena confluens Dziurzynski, 1908 [SYNONYM SPECIES 303350:CJKX4 nidx=null parent=5LVKS]
 + Zygaena confluens Dziurzynski, 1908 [SYNONYM SPECIES 303350:CJKX5 nidx=null parent=98VGZ]
 + Zygaena confluens Dziurzynski, 1910 [SYNONYM SPECIES 303350:CJKX6 nidx=null parent=98VK4]
 + Zygaena confluens Koch, 1941 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKX7 nidx=null parent=93SCF]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 303350:CJKX8 nidx=null parent=944F8]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 303350:CJKX9 nidx=null parent=944DR]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 303350:CJKXB nidx=null parent=95DBX]
 + Zygaena confluens Oberthür, 1896 [SYNONYM SPECIES 303350:CJKXC nidx=null parent=944G4]
 + Zygaena confluens Oberthür, 1896 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKXD nidx=null parent=93SCF]
 + Zygaena confluens Oberthür, 1911 [SYNONYM SPECIES 303350:CJKXF nidx=null parent=944G4]
 + Zygaena confluens Oberthür, 1910 [AMBIGUOUS_SYNONYM SPECIES 303350:CJKXG nidx=null parent=93SHQ]
 + Zygaena confluens Reiss, 1964 [SYNONYM SPECIES 303350:CJKXH nidx=null parent=9446S]
 + Zygaena confluens Rocci, 1914 [SYNONYM SPECIES 303350:CJKXJ nidx=null parent=944D6]
 + Zygaena confluens Spuler, 1906 [SYNONYM SPECIES 303350:CJKXK nidx=null parent=944F8]
 + Zygaena confluens Spuler, 1906 [SYNONYM SPECIES 303350:CJKXL nidx=null parent=944MF]
Zygodon tetragonostomus
 - Zygodon tetragonostomus A. Braun ex Bruch & Schimp. [ACCEPTED SPECIES 301819:9KZGW nidx=null]
 + Zygodon tetragonostomus A. Braun ex Bruch & Schimp. [ACCEPTED SPECIES 303350:7GGVD nidx=null]