Acanthonia
 - Acanthonia Wasmann, 1917 [SYNONYM GENUS 300004:9JJK4 nidx=null parent=9LCJB]
 + Acanthonia Wasmann, 1916 [SYNONYM GENUS 301819:CGRFZ nidx=null parent=9LCJB]
 + Acanthonia Wasmann, 1917 [SYNONYM GENUS 301819:CGRG2 nidx=null parent=9LCJB]
Acocephalus carinatus
 - Acocephalus carinatus Stål, 1864 [SYNONYM SPECIES 300004:8RHBW nidx=null parent=FK45]
 + Acocephalus carinatus Stål, 1864 [SYNONYM SPECIES 301819:8JNBK nidx=null parent=FK45]
Acontia (Acontia) opalinoides
 - Acontia (Acontia) opalinoides Guenée, 1852 [ACCEPTED SPECIES 300004:C6DXR nidx=null]
 + Acontia (Acontia) opalinoides Guenée, 1852 [ACCEPTED SPECIES 301819:CGS78 nidx=null]
Acontia (Emmelia) inda
 - Acontia (Emmelia) inda Felder, 1874 [SYNONYM SPECIES 300004:BPMBK nidx=null parent=BJGXF]
 + Acontia (Emmelia) inda Felder, 1874 [SYNONYM SPECIES 301819:95Q4C nidx=null parent=BJGXF]
Acontia (Emmelia) transfigurata
 - Acontia (Emmelia) transfigurata Wallengren, 1856 [ACCEPTED SPECIES 300004:BWJGB nidx=null]
 + Acontia (Emmelia) transfigurata Wallengren, 1856 [ACCEPTED SPECIES 301819:CGS7J nidx=null]
Acrocera (Acrocera) minuscula
 - Acrocera (Acrocera) minuscula (Séguy, 1934) [ACCEPTED SPECIES 300004:924P9 nidx=null]
 + Acrocera (Acrocera) minuscula (Séguy, 1934) [ACCEPTED SPECIES 301819:64M7P nidx=null]
Acroneuria arida
 - Acroneuria arida [AMBIGUOUS_SYNONYM SPECIES 300004:8MVY9 nidx=null parent=64NH4]
 + Acroneuria arida Frison, 1935 [AMBIGUOUS_SYNONYM SPECIES 301819:CGSHL nidx=null parent=64NH4]
Acroneuria evoluta
 - Acroneuria evoluta Clark, 1934 [AMBIGUOUS_SYNONYM SPECIES 300004:8MVYB nidx=null parent=64NH4]
 + Acroneuria evoluta Frison, 1942 [AMBIGUOUS_SYNONYM SPECIES 301819:CGSHM nidx=null parent=64NH4]
Acropora (Eumadrepora) formosa gracilis
 - Acropora (Eumadrepora) formosa gracilis (Dana, 19846) [SYNONYM SUBSPECIES 300004:9B7DY nidx=null parent=9P3S]
 + Acropora (Eumadrepora) formosa gracilis (Dana, 1846) [SYNONYM SUBSPECIES 301819:CGSKL nidx=null parent=9P3S]
Acrosalenia koenigii
 - Acrosalenia koenigii Agassiz in Agassiz & Desor, 1846 [SYNONYM SPECIES 300004:CFHG4 nidx=null parent=84C5H]
 + Acrosalenia koenigii Agassiz in Agassiz & Desor, 1846 [SYNONYM SPECIES 301819:CGSL7 nidx=null parent=84C5H]
Actaea consobrina
 - Actaea consobrina H. MIlne-Edwards, 1873 [SYNONYM SPECIES 300004:CCTR4 nidx=null parent=9S6L]
 + Actaea consobrina A. MIlne-Edwards, 1873 [SYNONYM SPECIES 301819:CGSMT nidx=null parent=CHLMM]
Actinia (Entacmaea) subfusca
 - Actinia (Entacmaea) subfusca Hemprich & Ehrenberg in Ehrenberg, 1834 [SYNONYM SPECIES 300004:C3GY2 nidx=null parent=4CRTL]
 + Actinia (Entacmaea) subfusca Hemprich & Ehrenberg in Ehrenberg, 1834 [SYNONYM SPECIES 301819:CGSP5 nidx=null parent=4CRTL]
Acucephalus olivaceus
 - Acucephalus olivaceus Walker, 1851 [SYNONYM SPECIES 300004:8RHDC nidx=null parent=FK4L]
 + Acucephalus olivaceus Walker, 1851 [SYNONYM SPECIES 301819:8JNGY nidx=null parent=FK4L]
Adelphotectonica kuroharai
 - Adelphotectonica kuroharai (Kuroda & Habe, 1961) [ACCEPTED SPECIES 300004:8V6YZ nidx=null]
 + Adelphotectonica kuroharai (Kuroda & T. Habe, 1961) [ACCEPTED SPECIES 301819:9YT8 nidx=null]
Aedes (Aedes) dermajoensis
 - Aedes (Aedes) dermajoensis Brug, 1931 [SYNONYM SPECIES 300004:87MTK nidx=null parent=C2TR5]
 + Aedes (Aedes) dermajoensis Brug, 1931 [SYNONYM SPECIES 301819:64VWL nidx=null parent=C2TR5]
Aedes (Ochlerotatus) arundinariae
 - Aedes (Ochlerotatus) arundinariae Casper, 2020 [ACCEPTED SPECIES 300004:9HMN9 nidx=null]
 + Aedes (Ochlerotatus) arundinariae Kasper, 2020 [ACCEPTED SPECIES 301819:CGPBX nidx=null]
Aeneator fontainei
 - Aeneator fontainei (A. d'Orbigny, 1839) [ACCEPTED SPECIES 300004:659T5 nidx=null]
 + Aeneator fontainei (A. d'Orbigny, 1841) [ACCEPTED SPECIES 301819:CGPCF nidx=null]
Aequipecten tehuelchus
 - Aequipecten tehuelchus (A. d'Orbigny, 1842) [ACCEPTED SPECIES 300004:64YTH nidx=null]
 + Aequipecten tehuelchus (A. d'Orbigny, 1846) [ACCEPTED SPECIES 301819:CGPCR nidx=null]
Aequipecten tehuelchus tehuelchus
 - Aequipecten tehuelchus tehuelchus (A. d'Orbigny, 1842) [ACCEPTED SUBSPECIES 300004:8SXTK nidx=null]
 + Aequipecten tehuelchus tehuelchus (A. d'Orbigny, 1846) [ACCEPTED SUBSPECIES 301819:CGPCS nidx=null]
Afroforficula
 - Afroforficula Steinmann, 1990 [ACCEPTED GENUS 300004:8MPXM nidx=null]
 + Afroforficula Steinmann, 1993 [ACCEPTED GENUS 301819:CGPD7 nidx=null]
Agama (Eremioplanis) lessonae
 - Agama (Eremioplanis) lessonae de Filippi, 1865 [SYNONYM SPECIES 300004:8H5V6 nidx=null parent=57XYV]
 + Agama (Eremioplanis) lessonae de Filippi, 1865 [SYNONYM SPECIES 301819:65K4C nidx=null parent=57XYV]
Agatina
 - Agatina auct. [SYNONYM GENUS 300004:C8TBG nidx=null parent=7NMQS]
 + Agatina [SYNONYM GENUS 301819:BG6H3 nidx=null parent=7NMQS]
Agromyza aberrans
 - †Agromyza aberrans Meunier, 1905 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SJJ nidx=null]
 + Agromyza aberrans Meunier, 1905 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJBM nidx=null]
Aiceona (Aiceona) siamensis
 - Aiceona (Aiceona) siamensis [ACCEPTED SPECIES 300004:BWHWT nidx=null]
 + Aiceona (Aiceona) siamensis Takahashi, 1941 [ACCEPTED SPECIES 301819:CGPSP nidx=null]
Aiceona siamensis
 - Aiceona siamensis [SYNONYM SPECIES 300004:C63Z2 nidx=null parent=BWHWT]
 + Aiceona siamensis Takahashi, 1941 [SYNONYM SPECIES 301819:CGPSQ nidx=null parent=CGPSP]
Alcyonidium
 - Alcyonidium auct. [SYNONYM GENUS 300004:C8SZN nidx=null parent=84L8R]
 + Alcyonidium [SYNONYM GENUS 301819:RMF nidx=null parent=84L8R]
Allodiopsis sibirica
 - Allodiopsis sibirica Zaitzev & Maximova, 2000 [SYNONYM SPECIES 300004:87PCJ nidx=null parent=C2F75]
 + Allodiopsis sibirica Zaitzev & Maximova, 2000 [ACCEPTED SPECIES 301819:89X8K nidx=null]
Allonuria frigida
 - Allonuria frigida [SYNONYM SPECIES 300004:8NH49 nidx=null parent=7BHVB]
 + Allonuria frigida (Navás, 1930) [SYNONYM SPECIES 301819:CGPGQ nidx=null parent=7BHVB]
Alloperla (Chloroperla) nana
 - Alloperla (Chloroperla) nana [SYNONYM SPECIES 300004:BWHZZ nidx=null parent=6MZZX]
 + Alloperla (Chloroperla) nana (Walsh, 1862) [SYNONYM SPECIES 301819:CGPGS nidx=null parent=6MZZX]
Amastigogonus nichollsii
 - Amastigogonus nichollsii Verhoeff, 1944 [SYNONYM SPECIES 300004:CFD9V nidx=null parent=CHNQ]
 + Amastigogonus nichollsii Verhoeff, 1944 [SYNONYM SPECIES 301819:CGQ4C nidx=null parent=CHNQ]
Amblyspatha mucoris
 - Amblyspatha mucoris Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SJM nidx=null]
 + Amblyspatha mucoris Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJDD nidx=null]
Ammophila marismortui
 - Ammophila marismortui Bytinski-Salz in de Beaumont & Bytinski-Salz, 1955 [SYNONYM SPECIES 300004:CFDWH nidx=null parent=782Y5]
 + Ammophila marismortui Bytinski-Salz in de Beaumont & Bytinski-Salz, 1955 [SYNONYM SPECIES 301819:CGQMR nidx=null parent=782Y5]
Amniscus polyrhaphoides
 - Amniscus polyrhaphoides [AMBIGUOUS_SYNONYM SPECIES 300004:CFDXX nidx=null parent=BK2YV]
 + Amniscus polyrhaphoides [AMBIGUOUS_SYNONYM SPECIES 301819:CGQNX nidx=null parent=BK2YV]
Amphidesma cancellata
 - Amphidesma cancellata A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:9G43M nidx=null parent=4WFTC]
 + Amphidesma cancellata A. d'Orbigny, 1853 [SYNONYM SPECIES 301819:66G9T nidx=null parent=4WFTC]
Amphipoea flavo
 - Amphipoea flavo Tutt, 1891 [AMBIGUOUS_SYNONYM SPECIES 300004:C67C7 nidx=null parent=D4WP]
 + Amphipoea flavo Tutt, 1891 [AMBIGUOUS_SYNONYM SPECIES 301819:9HMX6 nidx=null parent=D4WP]
 + Amphipoea flavo Burrows [AMBIGUOUS_SYNONYM SPECIES 301819:CGQXY nidx=null parent=D4WG]
 + Amphipoea flavo Burrows [AMBIGUOUS_SYNONYM SPECIES 301819:CGQXZ nidx=null parent=D4WG]
 + Amphipoea flavo Burrows [AMBIGUOUS_SYNONYM SPECIES 301819:CGQY2 nidx=null parent=D4WG]
 + Amphipoea flavo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 301819:CGQY3 nidx=null parent=D4WL]
 + Amphipoea flavo Heydemann, 1931 [AMBIGUOUS_SYNONYM SPECIES 301819:CGQY4 nidx=null parent=92STR]
 + Amphipoea flavo Tutt [AMBIGUOUS_SYNONYM SPECIES 301819:CGQY5 nidx=null parent=D4WL]
 + Amphipoea flavo Tutt [AMBIGUOUS_SYNONYM SPECIES 301819:CGQY6 nidx=null parent=D4WL]
Anacroneuria quecha
 - Anacroneuria quecha [SYNONYM SPECIES 300004:8NGWK nidx=null parent=DC4T]
 + Anacroneuria quecha Stark & Sivec, 1998 [SYNONYM SPECIES 301819:CGRDV nidx=null parent=DC4T]
Anarsia kepensis
 - Anarsia kepensis Park, 2016 [ACCEPTED SPECIES 300004:C69PX nidx=null]
 + Anarsia kepensis Park, 2016 [ACCEPTED SPECIES 301819:CGRKZ nidx=null]
Anchomenus brunneus
 - Anchomenus brunneus Letzner, 1852 unavailable name [AMBIGUOUS_SYNONYM SPECIES 300004:CFG64 nidx=null parent=664T3]
 + Anchomenus brunneus Letzner, 1852 [AMBIGUOUS_SYNONYM SPECIES 301819:CGRPZ nidx=null parent=664T3]
 + Anchomenus brunneus Letzner, 1852 [AMBIGUOUS_SYNONYM SPECIES 301819:CGRQ2 nidx=null parent=664SQ]
 + Anchomenus brunneus Letzner, 1851 [AMBIGUOUS_SYNONYM SPECIES 301819:CGRQ3 nidx=null parent=4D4P4]
Anopheles (Cellia) kinoshitai
 - Anopheles (Cellia) kinoshitai Koidzumi, 1917 [ACCEPTED SPECIES 300004:CFF9W nidx=null]
 + Anopheles (Cellia) kinoshitai Koidzumi, 1917 [ACCEPTED SPECIES 301819:CGQYT nidx=null]
Anthalia nigra
 - Anthalia nigra Zetterstedt, 1842 [SYNONYM SPECIES 300004:926SH nidx=null parent=C2S6P]
 + Anthalia nigra Zetterstedt, 1842 [SYNONYM SPECIES 301819:66Z2W nidx=null parent=C2S6P]
Anthomyia calceata
 - Anthomyia calceata Meigen, 1826 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3PPP nidx=null]
 + Anthomyia calceata Meigen, 1826 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJLP nidx=null]
Anthomyia cyclicans
 - Anthomyia cyclicans Pandellé, 1900 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3PPQ nidx=null]
 + Anthomyia cyclicans Pandellé, 1900 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJM3 nidx=null]
Anthrax dentoni
 - †Anthrax dentoni Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SJV nidx=null]
 + Anthrax dentoni Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJQ6 nidx=null]
Antiblemma laranda
 - Antiblemma laranda Druce, 1890 [ACCEPTED SPECIES 300004:CCSKF nidx=null]
 + Antiblemma laranda Druce [AMBIGUOUS_SYNONYM SPECIES 301819:CGRSG nidx=null parent=67K7Z]
 + Antiblemma laranda Druce, 1890 [ACCEPTED SPECIES 301819:CGRSH nidx=null]
Aphanicercella calvata
 - Aphanicercella calvata [SYNONYM SPECIES 300004:8NHCL nidx=null parent=67LZJ]
 + Aphanicercella calvata Stevens & Picker, 1999 [SYNONYM SPECIES 301819:CGS64 nidx=null parent=67LZJ]
Aphis (Aphis) polygoni
 - Aphis (Aphis) polygoni [ACCEPTED SPECIES 300004:B83FH nidx=null]
 + Aphis (Aphis) polygoni [ACCEPTED SPECIES 301819:CGQCF nidx=null]
Aphis absynthii
 - Aphis absynthii (Linnaeus, 1758) [SYNONYM SPECIES 300004:CCQ7L nidx=null parent=3X9NH]
 + Aphis absynthii (Linnaeus, 1758) [SYNONYM SPECIES 301819:CGQGG nidx=null parent=3X9NH]
Aporocotyle michaudi
 - Aporocotyle michaudi Santoro, Cipriani, Pankov & Lawton, 2015 [ACCEPTED SPECIES 300004:846P9 nidx=null]
 + Aporocotyle michaudi Santoro, Cipriani, Pankov & Lawton, 2015 [ACCEPTED SPECIES 301819:5VQMQ nidx=null]
Apricardia laevigata
 - †Apricardia laevigata (A. d'Orbigny, 1847) [ACCEPTED SPECIES 300004:FWNH nidx=null]
 + Apricardia laevigata (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:CGR3Q nidx=null]
Apseudes (Apseudes) acutifrons
 - Apseudes (Apseudes) acutifrons Sars, 1882 [SYNONYM SPECIES 300004:CCR93 nidx=null parent=FY7M]
 + Apseudes (Apseudes) acutifrons Sars, 1882 [SYNONYM SPECIES 301819:CGR5T nidx=null parent=FY7M]
Apseudes (Apseudes) tenuimanus
 - Apseudes (Apseudes) tenuimanus Sars, 1882 [SYNONYM SPECIES 300004:CFFGY nidx=null parent=5D6L5]
 + Apseudes (Apseudes) tenuimanus Sars, 1882 [SYNONYM SPECIES 301819:CGR5Y nidx=null parent=5D6L5]
Apteroperla babaensis
 - Apteroperla babaensis (Kawai, 1967) [ACCEPTED SPECIES 300004:FYSS nidx=null]
 + Apteroperla babaensis (Illies, 1966) [ACCEPTED SPECIES 301819:CGR6Y nidx=null]
Apterygida (Sphingolabis) albipennis
 - Apterygida (Sphingolabis) albipennis [SYNONYM SPECIES 300004:BWK4T nidx=null parent=8MWTL]
 + Apterygida (Sphingolabis) albipennis (von Muhlfeld, 1825) [SYNONYM SPECIES 301819:CGR72 nidx=null parent=682DK]
Apterygida media
 - Apterygida media [SYNONYM SPECIES 300004:8MWTN nidx=null parent=8MWTL]
 + Apterygida media (Hagenbach, 1822) [ACCEPTED SPECIES 301819:682DK nidx=null]
Apterygida pedestris
 - Apterygida pedestris [SYNONYM SPECIES 300004:8N89W nidx=null parent=8MWTL]
 + Apterygida pedestris (Bonelli, 1832) [SYNONYM SPECIES 301819:CGR73 nidx=null parent=682DK]
Apterygida tuberculosa
 - Apterygida tuberculosa Shiraki, 1905 [ACCEPTED SPECIES 300004:FYWC nidx=null]
 + Apterygida tuberculosa Shiraki, 1928 [ACCEPTED SPECIES 301819:CGR74 nidx=null]
Asilus therevinus
 - Asilus therevinus Rondani, 1851 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3Q8L nidx=null]
 + Asilus therevinus Rondani, 1851 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JJYN nidx=null]
Astarte longirostra
 - Astarte longirostra A. d'Orbigny, 1842 [ACCEPTED SPECIES 300004:HN4Y nidx=null]
 + Astarte longirostra A. d'Orbigny, 1846 [ACCEPTED SPECIES 301819:CGRN8 nidx=null]
Astegopteryx taiwana
 - Astegopteryx taiwana Takahashi, 1936 [SYNONYM SPECIES 300004:8QVFL nidx=null parent=59J4Z]
 + Astegopteryx taiwana Takahashi, 1934 [SYNONYM SPECIES 301819:CGRP6 nidx=null parent=CHK9B]
Asura (Asura) agraphia
 - Asura (Asura) agraphia Hampson [SYNONYM SPECIES 300004:BPPFD nidx=null parent=BFNZB]
 + Asura (Asura) agraphia Hampson [SYNONYM SPECIES 301819:95ZNF nidx=null parent=BFNZB]
Asura (Asura) bella
 - Asura (Asura) bella Bethune-Baker [SYNONYM SPECIES 300004:BPPFF nidx=null parent=BFLS9]
 + Asura (Asura) bella Bethune-Baker [SYNONYM SPECIES 301819:95ZNL nidx=null parent=BFLS9]
Asura (Asura) bougainvillicola
 - Asura (Asura) bougainvillicola Strand, 1922 [SYNONYM SPECIES 300004:BPPFG nidx=null parent=BFNYY]
 + Asura (Asura) bougainvillicola Strand, 1922 [SYNONYM SPECIES 301819:95ZNN nidx=null parent=BFNYY]
Asura (Asura) callinoma
 - Asura (Asura) callinoma Meyrick, 1894 [SYNONYM SPECIES 300004:BPPFH nidx=null parent=BFPZD]
 + Asura (Asura) callinoma Meyrick, 1894 [SYNONYM SPECIES 301819:95ZNQ nidx=null parent=BFPZD]
Asura (Asura) conflua
 - Asura (Asura) conflua Hampson, 1914 [SYNONYM SPECIES 300004:BPPFJ nidx=null parent=BFLQR]
 + Asura (Asura) conflua Hampson, 1914 [SYNONYM SPECIES 301819:95ZNW nidx=null parent=BFLQR]
Asura (Asura) confluens
 - Asura (Asura) confluens Draudt, 1914 [SYNONYM SPECIES 300004:BPPFK nidx=null parent=BFLRH]
 + Asura (Asura) confluens Draudt, 1914 [SYNONYM SPECIES 301819:95ZNX nidx=null parent=BFLRH]
Asura (Asura) gaudens
 - Asura (Asura) gaudens Walker, 1854 [SYNONYM SPECIES 300004:BPPFL nidx=null parent=BFLRH]
 + Asura (Asura) gaudens Walker, 1854 [SYNONYM SPECIES 301819:95ZPJ nidx=null parent=BFLRH]
Asura (Asura) habrotis
 - Asura (Asura) habrotis Meyrick, 1886 [SYNONYM SPECIES 300004:BPPFM nidx=null parent=BFLQG]
 + Asura (Asura) habrotis Meyrick, 1886 [SYNONYM SPECIES 301819:95ZPM nidx=null parent=BFLQG]
Asura (Asura) incompleta
 - Asura (Asura) incompleta Draudt, 1914 [SYNONYM SPECIES 300004:BPPFN nidx=null parent=BFLRH]
 + Asura (Asura) incompleta Draudt, 1914 [SYNONYM SPECIES 301819:95ZPP nidx=null parent=BFLRH]
Asura (Asura) inornata
 - Asura (Asura) inornata Wileman [SYNONYM SPECIES 300004:BPPFP nidx=null parent=BJ287]
 + Asura (Asura) inornata Wileman [SYNONYM SPECIES 301819:95ZPQ nidx=null parent=BJ287]
Asura (Asura) melitaula
 - Asura (Asura) melitaula Meyrick, 1899 [SYNONYM SPECIES 300004:BMQLK nidx=null parent=BFNYR]
 + Asura (Asura) melitaula Meyrick, 1899 [SYNONYM SPECIES 301819:92VV8 nidx=null parent=BFNYR]
Asura (Asura) phryctops
 - Asura (Asura) phryctops Kirby, 1892 [SYNONYM SPECIES 300004:BPPFS nidx=null parent=BFNZ4]
 + Asura (Asura) phryctops Kirby, 1892 [SYNONYM SPECIES 301819:95ZQC nidx=null parent=BFNZ4]
Asura (Asura) postfasciatus
 - Asura (Asura) postfasciatus Rothschild, 1920 [SYNONYM SPECIES 300004:BPPFT nidx=null parent=BFPG4]
 + Asura (Asura) postfasciatus Rothschild, 1920 [SYNONYM SPECIES 301819:95ZQD nidx=null parent=BFPG4]
Asura (Asura) reducta
 - Asura (Asura) reducta Rothschild, 1913 [SYNONYM SPECIES 300004:BPPFV nidx=null parent=BFLQN]
 + Asura (Asura) reducta Rothschild, 1913 [SYNONYM SPECIES 301819:95ZQL nidx=null parent=BFLQN]
Asura (Asura) strigulata
 - Asura (Asura) strigulata Rothschild [SYNONYM SPECIES 300004:BPPFW nidx=null parent=BFTDD]
 + Asura (Asura) strigulata Rothschild [SYNONYM SPECIES 301819:95ZR2 nidx=null parent=BFTDD]
Atagema hispida
 - Atagema hispida (A. d'Orbigny, 1834) [SYNONYM SPECIES 300004:J7VX nidx=null parent=35GKX]
 + Atagema hispida (A. d'Orbigny, 1836) [SYNONYM SPECIES 301819:CGSBB nidx=null parent=CGYBG]
Athysanus homophylus
 - Athysanus homophylus (Flor, 1861) [SYNONYM SPECIES 300004:C93QH nidx=null parent=9G4ZH]
 + Athysanus homophylus (Flor, 1861) [SYNONYM SPECIES 301819:CGSLQ nidx=null parent=9G4ZH]
Athysanus subfusculus
 - Athysanus subfusculus (Fallén, 1806) [SYNONYM SPECIES 300004:CCTNX nidx=null parent=4YKG4]
 + Athysanus subfusculus (Fallén, 1806) [SYNONYM SPECIES 301819:CGSLR nidx=null parent=4YKG4]
Atrichopogon (Atrichopogon) formosanus
 - Atrichopogon (Atrichopogon) formosanus Kieffer, 1918 [ACCEPTED SPECIES 300004:9286K nidx=null]
 + Atrichopogon (Atrichopogon) formosanus Kieffer, 1918 [ACCEPTED SPECIES 301819:JKQF nidx=null]
Aucklandobius spinigerus
 - Aucklandobius spinigerus [SYNONYM SPECIES 300004:8NGNW nidx=null parent=9NMS]
 + Aucklandobius spinigerus (Tillyard, 1923) [SYNONYM SPECIES 301819:CGSTN nidx=null parent=9NMS]
Aulacizes amblardii
 - Aulacizes amblardii (Signoret, 1855) [SYNONYM SPECIES 300004:C94WK nidx=null parent=4P38P]
 + Aulacizes amblardii (Signoret, 1855) [SYNONYM SPECIES 301819:CGSW2 nidx=null parent=4P38P]
Aulacorthum (Aulacorthum) nipponicum
 - Aulacorthum (Aulacorthum) nipponicum (Essig & Kuwana, 1918) [SYNONYM SPECIES 300004:8QVZ9 nidx=null parent=4P2TG]
 + Aulacorthum (Aulacorthum) nipponicum (Essig & Kuwana, 1918) [SYNONYM SPECIES 301819:CGSWR nidx=null parent=4P2TG]
Azara
 - Azara A. d'Orbigny, 1842 [SYNONYM GENUS 300004:BDVD6 nidx=null parent=7P3L9]
 + Azara A. d'Orbigny, 1844 [SYNONYM GENUS 301819:CGRLX nidx=null parent=7P3L9]
Bactrocera (Bactrocera) ritsemae
 - Bactrocera (Bactrocera) ritsemae (Weyenbergh, 1869) [ACCEPTED SPECIES 300004:929BD nidx=null]
 + Bactrocera (Bactrocera) ritsemae (Weyenbergh, 1869) [ACCEPTED SPECIES 301819:5VZFY nidx=null]
Bactrocera (Paratridacus) unichromata
 - Bactrocera (Paratridacus) unichromata Drew, 1989 [SYNONYM SPECIES 300004:87RKR nidx=null parent=C2TKB]
 + Bactrocera (Paratridacus) unichromata Drew, 1989 [SYNONYM SPECIES 301819:92967 nidx=null parent=C2TKB]
Baikalotrema polymorphum
 - Baikalotrema polymorphum (Layman, 1933) Layman, 1951 [SYNONYM SPECIES 300004:7S9VR nidx=null parent=4JGYJ]
 + Baikalotrema polymorphum (Layman, 1933) Layman, 1951 [SYNONYM SPECIES 301819:68B37 nidx=null parent=4JGYJ]
Bathytoma stenos
 - Bathytoma stenos [ACCEPTED SPECIES 300004:9JTHP nidx=null]
 + Bathytoma stenos Puillandre, Sysoev, Olivera, Couloux & Bouchet, 2010 [ACCEPTED SPECIES 301819:KYKF nidx=null]
Bazarella (Parabazarella)
 - Bazarella (Parabazarella) Vaillant, 1983 [ACCEPTED SUBGENUS 300004:BYWLN nidx=null]
 + Bazarella (Parabazarella) [ACCEPTED SUBGENUS 301819:CGS27 nidx=null]
Beloptera (Belopterina) levesquei
 - Beloptera (Belopterina) levesquei A. d'Orbigny, 1845 [SYNONYM SPECIES 300004:8ZD5H nidx=null parent=8YLDQ]
 + Beloptera (Belopterina) levesquei A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:CGSFG nidx=null parent=CGSFH]
Beloptera levesquei
 - Beloptera levesquei A. d'Orbigny, 1845 [SYNONYM SPECIES 300004:8ZD5J nidx=null parent=8YLDQ]
 + Beloptera levesquei A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:CGSFF nidx=null parent=CGSFH]
Belopterina levesquei
 - †Belopterina levesquei (A. d'Orbigny, 1845) [ACCEPTED SPECIES 300004:8YLDQ nidx=null]
 + Belopterina levesquei (A. d'Orbigny, 1842) [ACCEPTED SPECIES 301819:CGSFH nidx=null]
Bertea subaptera
 - Bertea subaptera Rondani, 1856 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SLJ nidx=null]
 + Bertea subaptera Rondani, 1856 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JKDP nidx=null]
Bireta (Besaia) dives
 - Bireta (Besaia) dives Kiriakoff, 1962 [SYNONYM SPECIES 300004:963PC nidx=null parent=92WQJ]
 + Bireta (Besaia) dives Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPP nidx=null parent=92WQJ]
Bireta (Besaia) yunnana
 - Bireta (Besaia) yunnana Kiriakoff, 1962 [SYNONYM SPECIES 300004:963PP nidx=null parent=92WQS]
 + Bireta (Besaia) yunnana Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPY nidx=null parent=92WQS]
Bireta (Norraca) postfusca
 - Bireta (Norraca) postfusca Kiriakoff, 1962 [SYNONYM SPECIES 300004:963PH nidx=null parent=988P9]
 + Bireta (Norraca) postfusca Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPS nidx=null parent=988P9]
Bireta (Norracana) niveipicta
 - Bireta (Norracana) niveipicta Kiriakoff, 1962 [SYNONYM SPECIES 300004:963PF nidx=null parent=988NV]
 + Bireta (Norracana) niveipicta Kiriakoff, 1962 [SYNONYM SPECIES 301819:BPPPR nidx=null parent=988NV]
Bireta (Oraura) aurora
 - Bireta (Oraura) aurora Kiriakoff, 1962 [SYNONYM SPECIES 300004:BPPPN nidx=null parent=C392F]
 + Bireta (Oraura) aurora Kiriakoff, 1962 [SYNONYM SPECIES 301819:963PB nidx=null parent=C392F]
Bispira rugosa monterea
 - Bispira rugosa monterea Monro, 1933 [SYNONYM SUBSPECIES 300004:5FY67 nidx=null parent=LWYR]
 + Bispira rugosa monterea (Chamberlin, 1919) [SYNONYM SUBSPECIES 301819:CGT4Y nidx=null parent=3C2CS]
Bittium binodulosum
 - †Bittium binodulosum Guzhov, 2022 [ACCEPTED SPECIES 300004:B6DK7 nidx=null]
 + Bittium binodulosum Yokoyama, 1920 [ACCEPTED SPECIES 301819:CGT62 nidx=null]
Blanus bedraigai
 - Blanus bedraigai Al-Jumaily, 1971 [SYNONYM SPECIES 300004:8828D nidx=null parent=68MDT]
 + Blanus bedraigai Al-Jumaily, 1971 [SYNONYM SPECIES 301819:LZZ8 nidx=null parent=68MDT]
Bolitophila pulveris
 - †Bolitophila pulveris Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SLL nidx=null]
 + Bolitophila pulveris Lewis, 1969 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JKJZ nidx=null]
Bombyx (Pania) phantoma
 - Bombyx (Pania) phantoma Dalman, 1823 [SYNONYM SPECIES 300004:964Q3 nidx=null parent=5GCMT]
 + Bombyx (Pania) phantoma Dalman, 1823 [SYNONYM SPECIES 301819:BPPRW nidx=null parent=5GCMT]
Borneogryllacris deschampsi
 - Borneogryllacris deschampsi (Bruner, 1915) [SYNONYM SPECIES 300004:8PXBK nidx=null parent=8PXHB]
 + Borneogryllacris deschampsi (Griffini, 1914) [ACCEPTED SPECIES 301819:CGTXV nidx=null]
Bowenia
 - Bowenia [ACCEPTED GENUS 300004:CCTQ7 nidx=null]
 + Bowenia Hook. ex Hook.f. [ACCEPTED GENUS 301819:CGSMJ nidx=null]
Brachypogon (Brachypogon) beaufortanensis
 - Brachypogon (Brachypogon) beaufortanensis Delécole & Rieb, 1992 [ACCEPTED SPECIES 300004:8B8Y5 nidx=null]
 + Brachypogon (Brachypogon) beaufortanensis Delécolle & Rieb, 1992 [ACCEPTED SPECIES 301819:6926P nidx=null]
Brachypogon (Brachypogon) fagicola
 - Brachypogon (Brachypogon) fagicola Delécole & Schiegg, 1999 [ACCEPTED SPECIES 300004:8B8YZ nidx=null]
 + Brachypogon (Brachypogon) fagicola Delécolle & Schiegg, 1999 [ACCEPTED SPECIES 301819:MYQ7 nidx=null]
Brachypogon (Brachypogon) infarctipes
 - Brachypogon (Brachypogon) infarctipes Delécole & Grogan, 1990 [ACCEPTED SPECIES 300004:8B8ZD nidx=null]
 + Brachypogon (Brachypogon) infarctipes Delécolle & Grogan, 1990 [ACCEPTED SPECIES 301819:MYQQ nidx=null]
Brachypogon (Brachypogon) phymos
 - Brachypogon (Brachypogon) phymos Delécole & Grogan, 1990 [ACCEPTED SPECIES 300004:8B922 nidx=null]
 + Brachypogon (Brachypogon) phymos Delécolle & Grogan, 1990 [ACCEPTED SPECIES 301819:MYRT nidx=null]
Bracon wesmaeli
 - Bracon wesmaeli Fahringer, 1928 [SYNONYM SPECIES 300004:N4G8 nidx=null parent=5DP3F]
 + Bracon wesmaeli Fahringer, 1927 [AMBIGUOUS_SYNONYM SPECIES 301819:CGSY6 nidx=null parent=5DP2N]
 + Bracon wesmaeli Fahringer, 1928 [SYNONYM SPECIES 301819:CGSY7 nidx=null parent=5DP3F]
Buccinum cochlidium
 - Buccinum cochlidium auct. [SYNONYM SPECIES 300004:C965F nidx=null parent=NKYP]
 + Buccinum cochlidium [SYNONYM SPECIES 301819:BFQRQ nidx=null parent=NKYP]
Bulimulus (Goniostomus)
 - Bulimulus (Goniostomus) auct. [SYNONYM SUBGENUS 300004:C9776 nidx=null parent=7P4GY]
 + Bulimulus (Goniostomus) [SYNONYM SUBGENUS 301819:BSC5G nidx=null parent=7P4GY]
Bulimulus (Naesiotus) habeli
 - Bulimulus (Naesiotus) habeli Stearns, 1892 [SYNONYM SPECIES 300004:CFKCP nidx=null parent=CG63L]
 + Bulimulus (Naesiotus) habeli Dall, 1892 [SYNONYM SPECIES 301819:CGV3H nidx=null parent=CH9WL]
Bulimulus (Pleuropyrgus) habeli
 - Bulimulus (Pleuropyrgus) habeli Stearns, 1892 [SYNONYM SPECIES 300004:CFKCN nidx=null parent=CG63L]
 + Bulimulus (Pleuropyrgus) habeli Dall, 1892 [SYNONYM SPECIES 301819:CGV3G nidx=null parent=CH9WL]
Bulimus lita
 - Bulimus lita A. d'Orbigny, 1838 [SYNONYM SPECIES 300004:NTFK nidx=null parent=6DLD2]
 + Bulimus lita (Quoy & Gaimard, 1825) [SYNONYM SPECIES 301819:CGV4M nidx=null parent=6DLD2]
Calathus brunneus
 - Calathus brunneus Letzner, 1852 unavailable name [AMBIGUOUS_SYNONYM SPECIES 300004:C3LCV nidx=null parent=8MFYZ]
 + Calathus brunneus Letzner, 1852 [AMBIGUOUS_SYNONYM SPECIES 301819:CGT4V nidx=null parent=8MFYZ]
 + Calathus brunneus Letzner, 1851 [AMBIGUOUS_SYNONYM SPECIES 301819:CGT4W nidx=null parent=8LW3H]
Callipara (Simililyria) aikeni inhacaensis
 - Callipara (Simililyria) aikeni inhacaensis J. H. Veldsman, 2012 [SYNONYM SUBSPECIES 300004:CFJMR nidx=null parent=B6DZL]
 + Callipara (Simililyria) aikeni inhacaensis J. H. Veldsman, 2012 [SYNONYM SUBSPECIES 301819:CGTK3 nidx=null parent=B6DZL]
Callistochiton (Lophochiton)
 - Callistochiton (Lophochiton) Ashby, 1923 [SYNONYM SUBGENUS 300004:BGJ6L nidx=null parent=C4Z52]
 + Callistochiton (Lophochiton) Ashby, 1923 [SYNONYM SUBGENUS 301819:BGJ6K nidx=null parent=C4Z52]
Callobata brasiliana
 - Callobata brasiliana Rondani, 1863 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SMX nidx=null]
 + Callobata brasiliana Rondani, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JLNS nidx=null]
Campylia temerarium
 - Campylia temerarium (Hutton, 1901) [ACCEPTED SPECIES 300004:QGN9 nidx=null]
 + Campylia temerarium Andretta & González, 1964 [ACCEPTED SPECIES 301819:CGVGY nidx=null]
Capnioneura petitpierrae
 - Capnioneura petitpierrae [SYNONYM SPECIES 300004:8N8BR nidx=null parent=QQVC]
 + Capnioneura petitpierrae Aubert, 1960 [SYNONYM SPECIES 301819:CGW37 nidx=null parent=QQVC]
Capnogryllacris deschampsi
 - Capnogryllacris deschampsi (Bruner, 1915) [ACCEPTED SPECIES 300004:8PXHB nidx=null]
 + Capnogryllacris deschampsi (Griffini, 1914) [SYNONYM SPECIES 301819:CGW3G nidx=null parent=CGTXV]
Capnogryllacris fruhstorferi fruhstorferi
 - Capnogryllacris fruhstorferi fruhstorferi (Griffini, 1908) [ACCEPTED SUBSPECIES 300004:8PLW8 nidx=null]
 + Capnogryllacris fruhstorferi fruhstorferi (Griffini, 1908) [SYNONYM SUBSPECIES 301819:5G78Z nidx=null parent=CHNRX]
Capnogryllacris fruhstorferi pileatus
 - Capnogryllacris fruhstorferi pileatus Gorochov, 2003 [ACCEPTED SUBSPECIES 300004:8PLW9 nidx=null]
 + Capnogryllacris fruhstorferi pileatus Gorochov, 2003 [SYNONYM SUBSPECIES 301819:5G792 nidx=null parent=CHNSL]
Capnogryllacris helocephala
 - Capnogryllacris helocephala Gorochov, 2003 [ACCEPTED SPECIES 300004:8P7GM nidx=null]
 + Capnogryllacris helocephala Gorochov, 2003 [SYNONYM SPECIES 301819:QR96 nidx=null parent=CHNRZ]
Capnogryllacris melanocrania
 - Capnogryllacris melanocrania (Karny, 1929) [ACCEPTED SPECIES 300004:8P7GQ nidx=null]
 + Capnogryllacris melanocrania (Karny, 1929) [SYNONYM SPECIES 301819:QR98 nidx=null parent=CHNRF]
Capnogryllacris phaeocephala
 - Capnogryllacris phaeocephala Gorochov, 2003 [ACCEPTED SPECIES 300004:8P7GV nidx=null]
 + Capnogryllacris phaeocephala Gorochov, 2003 [SYNONYM SPECIES 301819:QR9C nidx=null parent=CHNRY]
Carabus viridis
 - Carabus viridis Letzner, 1850 unavailable name [AMBIGUOUS_SYNONYM SPECIES 300004:CFJ2C nidx=null parent=8LW79]
 + Carabus viridis (G.Hauser, 1921) [AMBIGUOUS_SYNONYM SPECIES 301819:CGT2F nidx=null parent=8MCMH]
 + Carabus viridis Letzner, 1850 [AMBIGUOUS_SYNONYM SPECIES 301819:CGT2G nidx=null parent=8LW3X]
 + Carabus viridis Letzner, 1850 [AMBIGUOUS_SYNONYM SPECIES 301819:CGT2H nidx=null parent=8LW79]
Cardiocephaloides longicollis
 - Cardiocephaloides longicollis (Rudolphi, 1819) Dubois, 1982 [ACCEPTED SPECIES 300004:R56W nidx=null]
 + Cardiocephaloides longicollis (Rudolphi, 1819) Dubois, 1978 [ACCEPTED SPECIES 301819:CGT6J nidx=null]
Cardiomya cleryana
 - Cardiomya cleryana (A. d'Orbigny, 1842) [ACCEPTED SPECIES 300004:R5JH nidx=null]
 + Cardiomya cleryana (A. d'Orbigny, 1846) [ACCEPTED SPECIES 301819:CGT6S nidx=null]
Cassida (Cassida) flaveola
 - Cassida (Cassida) flaveola Thunberg, 1794 [ACCEPTED SPECIES 300004:7RYKH nidx=null]
 + Cassida (Cassida) flaveola Thunberg, 1794 [ACCEPTED SPECIES 301819:5XCTW nidx=null]
Catharodesmus major
 - Catharodesmus major (Silvestri, 1897) [SYNONYM SPECIES 300004:CFKN7 nidx=null parent=3SYKZ]
 + Catharodesmus major (Silvestri, 1897) [SYNONYM SPECIES 301819:CGV9F nidx=null parent=3SYKZ]
Catreolus ornaticollis
 - Catreolus ornaticollis [SYNONYM SPECIES 300004:9GP3B nidx=null parent=XRBP]
 + Catreolus ornaticollis (Blanchard, 1851) [SYNONYM SPECIES 301819:8PXKS nidx=null parent=XRBP]
Catreus ornaticollis
 - Catreus ornaticollis [SYNONYM SPECIES 300004:8P7L6 nidx=null parent=XRBP]
 + Catreus ornaticollis (Blanchard, 1851) [SYNONYM SPECIES 301819:RW93 nidx=null parent=XRBP]
Caulophacus (Caulophacus) arcticus var. groenlandicus
 - Caulophacus (Caulophacus) arcticus var. groenlandicus Burton, 1928 [SYNONYM VARIETY 300004:CFKS6 nidx=null parent=69F8B]
 + Caulophacus (Caulophacus) arcticus var. groenlandicus Burton, 1928 [SYNONYM VARIETY 301819:CGVCR nidx=null parent=69F8B]
Ceratonereis (Composetia) hircinicola
 - Ceratonereis (Composetia) hircinicola (Eisig, 1869) [SYNONYM SPECIES 300004:CCW5L nidx=null parent=9H3Z4]
 + Ceratonereis (Composetia) hircinicola (Eisig, 1869) [SYNONYM SPECIES 301819:CGT9K nidx=null parent=9H3Z4]
Ceratopogon succinctus
 - Ceratopogon succinctus Wiedemann, 1818 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SQG nidx=null]
 + Ceratopogon succinctus Wiedemann, 1818 [PROVISIONALLY_ACCEPTED SPECIES 301819:9TKXV nidx=null]
Ceratozamia
 - Ceratozamia [ACCEPTED GENUS 300004:CCWFT nidx=null]
 + Ceratozamia Brongn. [ACCEPTED GENUS 301819:CGTG5 nidx=null]
Ceratozamia mexicana var. longifolia
 - Ceratozamia mexicana var. longifolia Miq. [SYNONYM VARIETY 300004:5MYZC nidx=null parent=SQKW]
 + Ceratozamia mexicana var. longifolia (Miq.) Dyer [SYNONYM VARIETY 301819:CGTGH nidx=null parent=SQL8]
Cercopis haemorrhoa
 - Cercopis haemorrhoa (Schrank, 1781) [SYNONYM SPECIES 300004:CFJMM nidx=null parent=76Q6T]
 + Cercopis haemorrhoa (Schrank, 1781) [SYNONYM SPECIES 301819:CGTJX nidx=null parent=76Q6T]
Ceroxys ethiopia
 - †Ceroxys ethiopia Meunier, 1908 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SQX nidx=null]
 + Ceroxys ethiopia Meunier, 1908 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JMS5 nidx=null]
Cervaphis cambodiensis
 - Cervaphis cambodiensis Takahashi, 1950 [SYNONYM SPECIES 300004:8P7P5 nidx=null parent=T52T]
 + Cervaphis cambodiensis Takahashi, 1941 [SYNONYM SPECIES 301819:CGTW3 nidx=null parent=T52T]
Cervaphis canbodiensis
 - Cervaphis canbodiensis Takahashi, 1950 [SYNONYM SPECIES 300004:C6K5L nidx=null parent=T52T]
 + Cervaphis canbodiensis Takahashi, 1941 [SYNONYM SPECIES 301819:CGTW4 nidx=null parent=T52T]
Chaetopleura (Chaetopleura) isabellei
 - Chaetopleura (Chaetopleura) isabellei (A. d'Orbigny, 1841) [SYNONYM SPECIES 300004:TDQ4 nidx=null parent=TDR4]
 + Chaetopleura (Chaetopleura) isabellei (A. d'Orbigny, 1839) [SYNONYM SPECIES 301819:CGV7W nidx=null parent=CGV7V]
Chaetopleura isabellei
 - Chaetopleura isabellei (A. d'Orbigny, 1841) [ACCEPTED SPECIES 300004:TDR4 nidx=null]
 + Chaetopleura isabellei (A. d'Orbigny, 1839) [ACCEPTED SPECIES 301819:CGV7V nidx=null]
Chaetosoma suillum
 - Chaetosoma suillum (Allgén, 1932) [SYNONYM SPECIES 300004:C98F6 nidx=null parent=8G7XF]
 + Chaetosoma suillum (Allgén, 1932) [SYNONYM SPECIES 301819:CGV85 nidx=null parent=8G7XF]
Chalinissa elongata var. tenuispicula
 - Chalinissa elongata var. tenuispicula Thum, 1903 [SYNONYM VARIETY 300004:857QW nidx=null parent=PWMD]
 + Chalinissa elongata var. tenuispicula Thum, 1903 [SYNONYM VARIETY 301819:857QX nidx=null parent=PWMD]
Cheilosia nigroapicata
 - Cheilosia nigroapicata Curran, 1926 [ACCEPTED SPECIES 300004:92LQG nidx=null]
 + Cheilosia nigroapicata Curran, 1926 [ACCEPTED SPECIES 301819:TSRZ nidx=null]
Cheilosia nigrofasciata
 - Cheilosia nigrofasciata Curran, 1926 [ACCEPTED SPECIES 300004:92LQH nidx=null]
 + Cheilosia nigrofasciata Curran, 1926 [ACCEPTED SPECIES 301819:TSS3 nidx=null]
Cheilosialepta baltica
 - †Cheilosialepta baltica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SRQ nidx=null]
 + Cheilosialepta baltica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JMVJ nidx=null]
Chelidura albipennis
 - Chelidura albipennis [SYNONYM SPECIES 300004:BWLR4 nidx=null parent=8MWTL]
 + Chelidura albipennis (von Muhlfeld, 1825) [SYNONYM SPECIES 301819:CGW23 nidx=null parent=682DK]
Chiaja
 - Chiaja auct. [SYNONYM GENUS 300004:C9CS5 nidx=null parent=7P7D6]
 + Chiaja [SYNONYM GENUS 301819:CGW4G nidx=null parent=7P7D6]
Chironomus articuliferus
 - Chironomus articuliferus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SS8 nidx=null]
 + Chironomus articuliferus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JMXR nidx=null]
Chironomus tessellatus
 - Chironomus tessellatus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SSN nidx=null]
 + Chironomus tessellatus Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JN5Q nidx=null]
Chironomus tripartitus
 - Chironomus tripartitus Kieffer, 1910 [SYNONYM SPECIES 300004:889BF nidx=null parent=CDWTT]
 + Chironomus tripartitus Kieffer, 1910 [SYNONYM SPECIES 301819:5Y6FG nidx=null parent=CDWTT]
Chiton isabellei
 - Chiton isabellei A. d'Orbigny, 1841 [SYNONYM SPECIES 300004:BFS4N nidx=null parent=TDR4]
 + Chiton isabellei A. d'Orbigny, 1839 [SYNONYM SPECIES 301819:CGWQP nidx=null parent=CGV7V]
Chiton tehuelchus
 - Chiton tehuelchus A. d'Orbigny, 1841 [SYNONYM SPECIES 300004:BH24F nidx=null parent=TDQL]
 + Chiton tehuelchus A. d'Orbigny, 1839 [SYNONYM SPECIES 301819:CGWQR nidx=null parent=TDQL]
Chlorophyta
 - Chlorophyta [ACCEPTED PHYLUM 300004:3C nidx=null]
 + Chlorophyta Reichenbach, 1828 [ACCEPTED PHYLUM 301819:CGV7L nidx=null]
Chondropometes (Chondropometes) vignalense poenitentis
 - Chondropometes (Chondropometes) vignalense poenitentis de la Torre & Bartsch, 193 [SYNONYM SUBSPECIES 300004:9ZQTW nidx=null parent=B74XP]
 + Chondropometes (Chondropometes) vignalense poenitentis C. de la Torre & Bartsch, 1938 [SYNONYM SUBSPECIES 301819:CGVBG nidx=null parent=CGVBF]
Chondropometes vignalense poenitentis
 - Chondropometes vignalense poenitentis de la Torre & Bartsch, 1938 [ACCEPTED SUBSPECIES 300004:B74XP nidx=null]
 + Chondropometes vignalense poenitentis C. de la Torre & Bartsch, 1938 [ACCEPTED SUBSPECIES 301819:CGVBF nidx=null]
Chondrothyra gundlachi deviata
 - Chondrothyra gundlachi deviata (de la Torre & Bartsch, 1838) [ACCEPTED SUBSPECIES 300004:8VQ8N nidx=null]
 + Chondrothyra gundlachi deviata (C. de la Torre & Bartsch, 1938) [ACCEPTED SUBSPECIES 301819:CGVBM nidx=null]
Chondrothyretes parilis amoena
 - Chondrothyretes parilis amoena de la Torre & Bartsch, 1838 [SYNONYM SUBSPECIES 300004:B2LCZ nidx=null parent=7TS7Y]
 + Chondrothyretes parilis amoena C. de la Torre & Bartsch, 1938 [SYNONYM SUBSPECIES 301819:CGVBT nidx=null parent=7TS7Y]
Chortophila liturata
 - Chortophila liturata Rondani, 1868 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3SSZ nidx=null]
 + Chortophila liturata Rondani, 1868 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JN92 nidx=null]
Chortophila varipes
 - Chortophila varipes Pokorny, 1889 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ST2 nidx=null]
 + Chortophila varipes Pokorny, 1889 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JN9D nidx=null]
Chremistica seminigra
 - Chremistica seminigra (Distant, 1909) [ACCEPTED SPECIES 300004:8KL9V nidx=null]
 + Chremistica seminigra (Distant, 1909) [ACCEPTED SPECIES 301819:5YFCR nidx=null]
Chrysalis
 - Chrysalis auct. [SYNONYM GENUS 300004:C99LW nidx=null parent=7NZZN]
 + Chrysalis [SYNONYM GENUS 301819:BG9MW nidx=null parent=7NZZN]
Cicada aethyops
 - Cicada aethyops Schrank, 1781 [SYNONYM SPECIES 300004:C6QY4 nidx=null parent=76Q6T]
 + Cicada aethyops Schrank, 1781 [SYNONYM SPECIES 301819:CGW6R nidx=null parent=76Q6T]
Cicada fusconervosa
 - Cicada fusconervosa Stål, 1855 [SYNONYM SPECIES 300004:8HY7J nidx=null parent=8JNK7]
 + Cicada fusconervosa Stål, 1855 [SYNONYM SPECIES 301819:V5QZ nidx=null parent=8JNK7]
Cicada haematodis
 - Cicada haematodis (Scopoli, 1763) [SYNONYM SPECIES 300004:CFLRP nidx=null parent=8JJV6]
 + Cicada haematodis (Scopoli, 1763) [SYNONYM SPECIES 301819:CGW6Y nidx=null parent=8JJV6]
Cicada steveni
 - Cicada steveni Stål, 1854 [AMBIGUOUS_SYNONYM SPECIES 300004:8HYJ9 nidx=null parent=4NB3L]
 + Cicada steveni Stål, 1854 [AMBIGUOUS_SYNONYM SPECIES 301819:V69T nidx=null parent=4NB3L]
Cicadula cyane
 - Cicadula cyane (Boheman, 1845) [SYNONYM SPECIES 300004:8JR56 nidx=null parent=8JW7D]
 + Cicadula cyane (Boheman, 1845) [SYNONYM SPECIES 301819:CGW8X nidx=null parent=8JW7D]
Cicadula quadrilineatus
 - Cicadula quadrilineatus Forbes, 1885 [SYNONYM SPECIES 300004:CFLTT nidx=null parent=8JWBD]
 + Cicadula quadrilineatus Forbes, 1885 [SYNONYM SPECIES 301819:CGW8Y nidx=null parent=8JWBD]
Cicindela circumflexa
 - Cicindela circumflexa Beuthin, 1894 unavailable name [AMBIGUOUS_SYNONYM SPECIES 300004:C6RCN nidx=null parent=8MLTQ]
 + Cicindela circumflexa Beuthin, 1893 [AMBIGUOUS_SYNONYM SPECIES 301819:CGWC5 nidx=null parent=8LW8X]
 + Cicindela circumflexa Beuthin, 1894 [AMBIGUOUS_SYNONYM SPECIES 301819:CGWC6 nidx=null parent=8MLTQ]
 + Cicindela circumflexa Beuthin, 1893 [AMBIGUOUS_SYNONYM SPECIES 301819:CGWC7 nidx=null parent=V888]
Cicindela marginalis
 - Cicindela marginalis Beuthin, 1895 unavailable name [AMBIGUOUS_SYNONYM SPECIES 300004:C9DJ5 nidx=null parent=8MG6Q]
 + Cicindela marginalis Beuthin, 1895 [AMBIGUOUS_SYNONYM SPECIES 301819:CGWDY nidx=null parent=8MG6Q]
 + Cicindela marginalis Beuthin, 1894 [AMBIGUOUS_SYNONYM SPECIES 301819:CGWDZ nidx=null parent=8MLTQ]
Cidaris (Diadema)
 - Cidaris (Diadema) Gray, 1825 [SYNONYM SUBGENUS 300004:CFLTG nidx=null parent=7NW5M]
 + Cidaris (Diadema) Gray, 1825 [SYNONYM SUBGENUS 301819:CGW8K nidx=null parent=7NW5M]
Cidarites
 - Cidarites auct. [PROVISIONALLY_ACCEPTED GENUS 300004:C9DPW nidx=null]
 - Cidarites auct. [SYNONYM GENUS 300004:C9DPX nidx=null parent=7NSWK]
 + Cidarites [PROVISIONALLY_ACCEPTED GENUS 301819:62LB2 nidx=null]
 + Cidarites [SYNONYM GENUS 301819:BG9NV nidx=null parent=7NSWK]
Cinara thujafilina
 - Cinara thujafilina Del Guercio, 1909 [SYNONYM SPECIES 300004:CFM7W nidx=null parent=BSLG7]
 + Cinara thujafilina Del Guercio, 1909 [SYNONYM SPECIES 301819:CGWM4 nidx=null parent=BSLG7]
Cirratulus tentaculatus meridionalis
 - Cirratulus tentaculatus meridionalis Marenzeller, 1887 [SYNONYM SUBSPECIES 300004:85S6Q nidx=null parent=5DVGR]
 + Cirratulus tentaculatus meridionalis Marenzeller, 1887 [SYNONYM SUBSPECIES 301819:5GGLX nidx=null parent=5DVGR]
Cistena pallassii
 - Cistena pallassii Leach, 1816 [SYNONYM SPECIES 300004:852L6 nidx=null parent=75VKH]
 + Cistena pallassii Leach, 1816 [SYNONYM SPECIES 301819:VLD8 nidx=null parent=75VKH]
Claassenia subulosa
 - Claassenia subulosa [SYNONYM SPECIES 300004:8NGNR nidx=null parent=VN7K]
 + Claassenia subulosa Banks, 1900 [SYNONYM SPECIES 301819:CGX7H nidx=null parent=VN7K]
Clanculus miniatus
 - Clanculus miniatus auct. [AMBIGUOUS_SYNONYM SPECIES 300004:C99KL nidx=null parent=VQTK]
 + Clanculus miniatus [AMBIGUOUS_SYNONYM SPECIES 301819:VQS4 nidx=null parent=VQTK]
Clathria (Thalysias) tricurvatifera
 - Clathria (Thalysias) tricurvatifera (Carter, 1876) [SYNONYM SPECIES 300004:C99SL nidx=null parent=6L9GV]
 + Clathria (Thalysias) tricurvatifera (Carter, 1876) [SYNONYM SPECIES 301819:CGXDV nidx=null parent=6L9GV]
Clytemnestra tenuis
 - Clytemnestra tenuis Lubbock, 1863 [ACCEPTED SPECIES 300004:5ZFPC nidx=null]
 + Clytemnestra tenuis Lubbock, 1860-1862 [ACCEPTED SPECIES 301819:CGWCR nidx=null]
Coelosphaera (Coelosphaera) appendiculata antarctica
 - Coelosphaera (Coelosphaera) appendiculata antarctica Koltun, 1976 [SYNONYM SUBSPECIES 300004:CD36F nidx=null parent=WSY8]
 + Coelosphaera (Coelosphaera) appendiculata antarctica Koltun, 1976 [SYNONYM SUBSPECIES 301819:CGX5H nidx=null parent=WSY8]
Coenobothrus karawanus
 - Coenobothrus karawanus Attems, 1938 [ACCEPTED SPECIES 300004:CFMZ8 nidx=null]
 + Coenobothrus karawanus Attems, 1938 [ACCEPTED SPECIES 301819:CGX7J nidx=null]
Colombella fusiformis
 - Colombella fusiformis A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:9J8MD nidx=null parent=43QZ3]
 + Colombella fusiformis A. d'Orbigny, 1844 [SYNONYM SPECIES 301819:CGXLZ nidx=null parent=43QZ3]
Colpocephalum haliaeti
 - Colpocephalum haliaeti Denny, 1842 [SYNONYM SPECIES 300004:8MY8G nidx=null parent=3RG62]
 + Colpocephalum haliaeti Denny, 1842 [SYNONYM SPECIES 301819:5ZMKK nidx=null parent=3RG62]
Columbella fusiformis
 - Columbella fusiformis A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:BFT2Q nidx=null parent=43QZ3]
 + Columbella fusiformis A. d'Orbigny, 1844 [SYNONYM SPECIES 301819:CGXQG nidx=null parent=43QZ3]
Conus (Coronaxis) cernicus
 - Conus (Coronaxis) cernicus H. Adams, 1869 [SYNONYM SPECIES 300004:CFLWT nidx=null parent=5ZXMB]
 + Conus (Coronaxis) cernicus H. Adams, 1869 [SYNONYM SPECIES 301819:CGWBQ nidx=null parent=5ZXMB]
Conus (Darioconus) miniturritus
 - Conus (Darioconus) miniturritus Bozzetti, 2017 [SYNONYM SPECIES 300004:CFLZD nidx=null parent=XY3V]
 + Conus (Darioconus) miniturritus Bozzetti, 2017 [SYNONYM SPECIES 301819:CGWF7 nidx=null parent=XY3V]
Conus (Pionoconus) tosaensis
 - Conus (Pionoconus) tosaensis Shikama, 1970 [SYNONYM SPECIES 300004:CD26R nidx=null parent=XJXB]
 + Conus (Pionoconus) tosaensis Shikama, 1970 [SYNONYM SPECIES 301819:CGWHX nidx=null parent=XJXB]
Cordylura aea
 - Cordylura aea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3T4Y nidx=null]
 + Cordylura aea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JNW9 nidx=null]
Corocolla
 - Corocolla auct. [SYNONYM GENUS 300004:C9CQK nidx=null parent=7NRVB]
 + Corocolla [SYNONYM GENUS 301819:BGB8R nidx=null parent=7NRVB]
Cosmetodon
 - Cosmetodon C. C. Branson, 1842 [SYNONYM GENUS 300004:C4YD8 nidx=null parent=7P4JB]
 + Cosmetodon C. C. Branson, 1942 [SYNONYM GENUS 301819:CGXRD nidx=null parent=7P4JB]
Cosmopsaltria minahassae
 - Cosmopsaltria minahassae Distant, 1888 [SYNONYM SPECIES 300004:C9G7B nidx=null parent=365R5]
 + Cosmopsaltria minahassae Distant, 1888 [SYNONYM SPECIES 301819:CGXSJ nidx=null parent=365R5]
Cosmosciara hartii
 - Cosmosciara hartii (Johannsen, 1912) [ACCEPTED SPECIES 300004:8BLH2 nidx=null]
 + Cosmosciara hartii (Johannsen, 1912) [ACCEPTED SPECIES 301819:8BLH3 nidx=null]
Cossmannea desvoidyi
 - Cossmannea desvoidyi [SYNONYM SPECIES 300004:C5X5M nidx=null parent=9FYY5]
 + Cossmannea desvoidyi (A. d'Orbigny, 1850) [ACCEPTED SPECIES 301819:CGXVD nidx=null]
Cranaphis
 - Cranaphis [ACCEPTED GENUS 300004:3V5T nidx=null]
 + Cranaphis Takahashi, 1937 [ACCEPTED GENUS 301819:CGY56 nidx=null]
Craspedosoma hispidulus
 - Craspedosoma hispidulus Silvestri, 1894 [SYNONYM SPECIES 300004:CD54S nidx=null parent=66JWB]
 + Craspedosoma hispidulus Silvestri, 1894 [SYNONYM SPECIES 301819:CGY8Y nidx=null parent=66JWB]
Cricotopus (Cricotopus) luciae
 - Cricotopus (Cricotopus) luciae LeSage, 1981 [ACCEPTED SPECIES 300004:B9NYQ nidx=null]
 + Cricotopus (Cricotopus) luciae LeSage & Harrison, 1981 [ACCEPTED SPECIES 301819:ZG5P nidx=null]
Cricotopus luciae
 - Cricotopus luciae LeSage, 1981 [SYNONYM SPECIES 300004:B9NYR nidx=null parent=B9NYQ]
 + Cricotopus luciae LeSage & Harrison, 1981 [SYNONYM SPECIES 301819:88DMP nidx=null parent=ZG5P]
Ctenophorocera polleniina
 - Ctenophorocera polleniina Bezzi, 1908 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3T9S nidx=null]
 + Ctenophorocera polleniina Bezzi, 1908 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JP34 nidx=null]
Cubatea
 - †Cubatea Kiel, 2013 [ACCEPTED GENUS 300004:8PP3V nidx=null]
 + Cubatea Kiel, K. A. Campbell & C. Gaillard, 2010 [ACCEPTED GENUS 301819:CGXN3 nidx=null]
Culex (Culex) mimeticus
 - Culex (Culex) mimeticus Noè, 1899 [ACCEPTED SPECIES 300004:8BML9 nidx=null]
 + Culex (Culex) mimeticus Noè, 1899 [ACCEPTED SPECIES 301819:32BHJ nidx=null]
Culex escomeli
 - Culex escomeli Brèthes, 1920 [SYNONYM SPECIES 300004:88FC9 nidx=null parent=8BMH5]
 + Culex escomeli Brèthes, 1920 [SYNONYM SPECIES 301819:32B68 nidx=null parent=8BMH5]
Culex fossilis
 - †Culex fossilis Brodie, 1845 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3TB4 nidx=null]
 + Culex fossilis Brodie, 1845 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JP45 nidx=null]
Culicoides (Meijerehelea) daleki
 - Culicoides (Meijerehelea) daleki Smith & Swaminath, 1932 [ACCEPTED SPECIES 300004:CD4CS nidx=null]
 + Culicoides (Meijerehelea) daleki Smith & Swaminath, 1932 [ACCEPTED SPECIES 301819:CGXRF nidx=null]
Culicoides (Meijerehelea) micropunctatus
 - Culicoides (Meijerehelea) micropunctatus Tokunaga, 1951 [ACCEPTED SPECIES 300004:C6V8W nidx=null]
 + Culicoides (Meijerehelea) micropunctatus Tokunaga, 1951 [ACCEPTED SPECIES 301819:CGXRG nidx=null]
Culicoides (Oecacta) hanae
 - Culicoides (Oecacta) hanae Braverman, Delécole & Krémer, 1983 [ACCEPTED SPECIES 300004:8BP7G nidx=null]
 + Culicoides (Oecacta) hanae Braverman, Delécolle & Krémer, 1983 [ACCEPTED SPECIES 301819:32CML nidx=null]
Culiseta
 - Culiseta Felt, 1904 [ACCEPTED GENUS 300004:BXZHV nidx=null]
 - Culiseta Felt, 1904 [SYNONYM GENUS 300004:BXZHW nidx=null parent=BXZHX]
 + Culiseta [ACCEPTED GENUS 301819:CGXSP nidx=null]
Culiseta (Culiseta)
 - Culiseta (Culiseta) Felt, 1904 [ACCEPTED SUBGENUS 300004:BXZHX nidx=null]
 + Culiseta (Culiseta) [ACCEPTED SUBGENUS 301819:CGXSQ nidx=null]
Cyana (Clerckia) meyricci
 - Cyana (Clerckia) meyricci Hampson, 1914 [SYNONYM SPECIES 300004:BPT2S nidx=null parent=BFNT5]
 + Cyana (Clerckia) meyricci Hampson, 1914 [SYNONYM SPECIES 301819:96HYW nidx=null parent=BFNT5]
Cycadaceae
 - Cycadaceae [ACCEPTED FAMILY 300004:624FX nidx=null]
 + Cycadaceae Pers. [ACCEPTED FAMILY 301819:CGVH7 nidx=null]
Cycadales
 - Cycadales [ACCEPTED ORDER 300004:32T nidx=null]
 + Cycadales Pers. ex Bercht. & J. Presl [ACCEPTED ORDER 301819:CGVH8 nidx=null]
Cycadopsida
 - Cycadopsida [ACCEPTED CLASS 300004:622DH nidx=null]
 + Cycadopsida Brongn. [ACCEPTED CLASS 301819:CGVH9 nidx=null]
Cycas
 - Cycas [ACCEPTED GENUS 300004:CD582 nidx=null]
 + Cycas L. [ACCEPTED GENUS 301819:CGYBM nidx=null]
Cycas javana
 - Cycas javana (Miq.) de Laub. [ACCEPTED SPECIES 300004:32S3M nidx=null]
 + Cycas javana (Miq.) de Laub. ex D.Yue Wang [ACCEPTED SPECIES 301819:CGYC6 nidx=null]
Cycas parvula
 - Cycas parvula S.L.Yang [SYNONYM SPECIES 300004:32S4T nidx=null parent=32S2Z]
 + Cycas parvula S.L.Yang ex D.Yue Wang [SYNONYM SPECIES 301819:CGYC9 nidx=null parent=32S2Z]
Cycas thouarsii
 - Cycas thouarsii R.Br. ex Gaudich. [ACCEPTED SPECIES 300004:32S5X nidx=null]
 + Cycas thouarsii R.Br. [ACCEPTED SPECIES 301819:CGYCG nidx=null]
Cyclas fontainei
 - Cyclas fontainei A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:32STW nidx=null parent=4LBDJ]
 + Cyclas fontainei A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CGYD6 nidx=null parent=CHCXX]
Cylindrella garciana
 - Cylindrella garciana L. Pfeiffer, 1866 [SYNONYM SPECIES 300004:8TXV9 nidx=null parent=8TYGV]
 + Cylindrella garciana Presas, 1865 [SYNONYM SPECIES 301819:CGYR9 nidx=null parent=8TYGV]
Cystocoelia immaculata
 - Cystocoelia immaculata [SYNONYM SPECIES 300004:8P8R8 nidx=null parent=NTYY]
 + Cystocoelia immaculata (Thunberg, 1775) [SYNONYM SPECIES 301819:33PPV nidx=null parent=NTYY]
Cytheropteron (Cytheropteron) fornix
 - Cytheropteron (Cytheropteron) fornix Hornibrook, 1952 [SYNONYM SPECIES 300004:C9LSR nidx=null parent=48L5Y]
 + Cytheropteron (Cytheropteron) fornix Hornibrook, 1952 [SYNONYM SPECIES 301819:CGXJR nidx=null parent=48L5Y]
Cytheropteron (Cytheropteron) vertex
 - Cytheropteron (Cytheropteron) vertex Hornibrook, 1952 [SYNONYM SPECIES 300004:C4VW2 nidx=null parent=85W4V]
 + Cytheropteron (Cytheropteron) vertex Hornibrook, 1952 [SYNONYM SPECIES 301819:CGXJX nidx=null parent=85W4V]
Cytherura (Semicytherura) miurensis
 - Cytherura (Semicytherura) miurensis Hanai, 1957 [SYNONYM SPECIES 300004:CFNDJ nidx=null parent=4WGCT]
 + Cytherura (Semicytherura) miurensis Hanai, 1957 [SYNONYM SPECIES 301819:CGXK7 nidx=null parent=4WGCT]
Dactynotus cirsi
 - Dactynotus cirsi (Linnaeus, 1758) [SYNONYM SPECIES 300004:CFNMG nidx=null parent=7DTZT]
 + Dactynotus cirsi (Linnaeus, 1758) [SYNONYM SPECIES 301819:CGXPW nidx=null parent=7DTZT]
Daptonema crassissimus
 - Daptonema crassissimus (Ditlevsen, 1911) [SYNONYM SPECIES 300004:BMVJ2 nidx=null parent=BSZ86]
 + Daptonema crassissimus (Ditlevsen, 1911) [SYNONYM SPECIES 301819:BJWJF nidx=null parent=BSZ86]
Dasypogon (Saropogon) chalybeiventris
 - Dasypogon (Saropogon) chalybeiventris Loew, 1851 [SYNONYM SPECIES 300004:88JBC nidx=null parent=8B38Z]
 + Dasypogon (Saropogon) chalybeiventris Loew, 1851 [SYNONYM SPECIES 301819:349LG nidx=null parent=8B38Z]
Degeeria mexicana
 - Degeeria mexicana Giglio-Tos, 1893 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3TJM nidx=null]
 + Degeeria mexicana Giglio-Tos, 1893 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JPZL nidx=null]
Deltocephalus tiaratus
 - Deltocephalus tiaratus Fieber, 1869 [SYNONYM SPECIES 300004:CFPVZ nidx=null parent=C9P8R]
 + Deltocephalus tiaratus Fieber, 1869 [SYNONYM SPECIES 301819:CGYNP nidx=null parent=C9P8R]
Dendromyia (Calladimyia) melanoides
 - Dendromyia (Calladimyia) melanoides Root, 1928 [SYNONYM SPECIES 300004:88JM9 nidx=null parent=5C4BH]
 + Dendromyia (Calladimyia) melanoides Root, 1928 [SYNONYM SPECIES 301819:34QNS nidx=null parent=5C4BH]
Dendropoma annulatus
 - Dendropoma annulatus auct. [SYNONYM SPECIES 300004:C9KWB nidx=null parent=34S2Y]
 + Dendropoma annulatus [SYNONYM SPECIES 301819:34S2W nidx=null parent=34S2Y]
Derbyia hardmani
 - †Derbyia hardmani Archbold, 1993 [ACCEPTED SPECIES 300004:CD6Z8 nidx=null]
 + Derbyia hardmani Thomas, 1958 [ACCEPTED SPECIES 301819:CGZBL nidx=null]
Dermaphis crematogastri
 - Dermaphis crematogastri [ACCEPTED SPECIES 300004:34WPT nidx=null]
 + Dermaphis crematogastri (Takahashi, 1941) [ACCEPTED SPECIES 301819:CGZC9 nidx=null]
Dermatodidymocystis indicus
 - Dermatodidymocystis indicus Nikolaeva & Dubina, 1978 [SYNONYM SPECIES 300004:7VPS4 nidx=null parent=4JNFN]
 + Dermatodidymocystis indicus Nikolaeva & Dubina, 1978 [SYNONYM SPECIES 301819:34X2D nidx=null parent=4JNFN]
Dianafranksia fisheri
 - Dianafranksia fisheri Coram, Jarzembowski & Mostovski, 2000 [ACCEPTED SPECIES 300004:359MB nidx=null]
 + Dianafranksia fisheri Andersen, 2024 [ACCEPTED SPECIES 301819:CGXXZ nidx=null]
Diaulula hispida
 - Diaulula hispida (A. d'Orbigny, 1834) [ACCEPTED SPECIES 300004:35GKX nidx=null]
 + Diaulula hispida (A. d'Orbigny, 1836) [ACCEPTED SPECIES 301819:CGYBG nidx=null]
Dichelacera abiens
 - Dichelacera abiens Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3TKF nidx=null]
 + Dichelacera abiens Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQ6L nidx=null]
Didymodiclinus kovaljovae
 - Didymodiclinus kovaljovae (Nikolaeva & Gaevskaja, 1985) Pozdnyakov, 1994 [ACCEPTED SPECIES 300004:84869 nidx=null]
 + Didymodiclinus kovaljovae (Nikolaeva & Gaevskaja, 1985) Pozdnyakov, 1994 [ACCEPTED SPECIES 301819:35YSQ nidx=null]
Diestrammena (Tachycines) coreana
 - Diestrammena (Tachycines) coreana [SYNONYM SPECIES 300004:8P8YV nidx=null parent=7BF6G]
 + Diestrammena (Tachycines) coreana (Yamasaki, 1969) [SYNONYM SPECIES 301819:362NM nidx=null parent=CHJ8K]
Dinaraea (Aglypha)
 - Dinaraea (Aglypha) Mulsant & Rey, 1874 [SYNONYM SUBGENUS 300004:CFCM6 nidx=null parent=9JB2R]
 + Dinaraea (Aglypha) Mulsant & Rey, 1873 [SYNONYM SUBGENUS 301819:CGPHH nidx=null parent=9JB2R]
 + Dinaraea (Aglypha) Mulsant & Rey, 1874 [SYNONYM SUBGENUS 301819:CGPHJ nidx=null parent=9JB2R]
Dioon
 - Dioon [ACCEPTED GENUS 300004:CD7PD nidx=null]
 + Dioon Lindl. [ACCEPTED GENUS 301819:CGZQP nidx=null]
Diplodon diluvii
 - †Diplodon diluvii (A. d'Orbigny, 1843) [ACCEPTED SPECIES 300004:8Z67D nidx=null]
 + Diplodon diluvii (A. d'Orbigny, 1839) [ACCEPTED SPECIES 301819:CH22Z nidx=null]
Diplosis fleothripetiperda
 - Diplosis fleothripetiperda Del Guercio, 1931 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3TQ6 nidx=null]
 + Diplosis fleothripetiperda Del Guercio, 1931 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQ89 nidx=null]
Diplostomum heronei
 - Diplostomum heronei Srivastava, 1954 [ACCEPTED SPECIES 300004:9X756 nidx=null]
 + Diplostomum heronei Srivastava, 1956 [ACCEPTED SPECIES 301819:CH27N nidx=null]
Docophorus rotundus
 - Docophorus rotundus Rudow, 1869 [SYNONYM SPECIES 300004:8MYW7 nidx=null parent=7L2FG]
 + Docophorus rotundus Rudow, 1869 [SYNONYM SPECIES 301819:37398 nidx=null parent=7L2FG]
Dolichopus (Dolichopus) maculicornis
 - Dolichopus (Dolichopus) maculicornis Verrall, 1875 [ACCEPTED SPECIES 300004:CFQ6J nidx=null]
 + Dolichopus (Dolichopus) maculicornis Verrall, 1875 [ACCEPTED SPECIES 301819:CGYVX nidx=null]
Dolichopus (Dolichopus) pallidicoxa
 - Dolichopus (Dolichopus) pallidicoxa Roser, 1840 [ACCEPTED SPECIES 300004:BZ7NP nidx=null]
 + Dolichopus (Dolichopus) pallidicoxa Roser, 1840 [ACCEPTED SPECIES 301819:CGYVY nidx=null]
Donacilla solenoides
 - Donacilla solenoides A. d'Orbigny, 1845 [SYNONYM SPECIES 300004:379FS nidx=null parent=CH9Z]
 + Donacilla solenoides (P. P. King, 1832) [SYNONYM SPECIES 301819:CGZ3G nidx=null parent=3464C]
Donax (Tembrockia)
 - Donax (Tembrockia) Glibert & van de Poe!, 1967 [SYNONYM SUBGENUS 300004:BGSB8 nidx=null parent=7NXCF]
 + Donax (Tembrockia) Glibert & Van de Poel, 1967 [SYNONYM SUBGENUS 301819:CGZ4F nidx=null parent=7NXCF]
Dorcadion (Cribridorcadion) koechlini
 - Dorcadion (Cribridorcadion) koechlini Pic, 1898 [ACCEPTED SPECIES 300004:C6YV6 nidx=null]
 + Dorcadion (Cribridorcadion) koechlini Pic, 1898 [ACCEPTED SPECIES 301819:CGZ8R nidx=null]
Doris hispida
 - Doris hispida A. d'Orbigny, 1834 [SYNONYM SPECIES 300004:37DFS nidx=null parent=35GKX]
 + Doris hispida A. d'Orbigny, 1836 [SYNONYM SPECIES 301819:CGZDN nidx=null parent=CGYBG]
Dorylaimus (Longidorus) diversicaudatus
 - Dorylaimus (Longidorus) diversicaudatus Micoletzky, 1927 [SYNONYM SPECIES 300004:8G7NW nidx=null parent=BVBLG]
 + Dorylaimus (Longidorus) diversicaudatus Micoletzky, 1923 [SYNONYM SPECIES 301819:CGZHD nidx=null parent=BVBLG]
Drepanaphis acerifolii
 - Drepanaphis acerifolii [SYNONYM SPECIES 300004:8P98X nidx=null parent=37MD4]
 + Drepanaphis acerifolii (Thomas, 1878) [SYNONYM SPECIES 301819:37MD5 nidx=null parent=37MD4]
Drepanaphis allegheneyensis
 - Drepanaphis allegheneyensis [SYNONYM SPECIES 300004:8QT7R nidx=null parent=37MD4]
 + Drepanaphis allegheneyensis Miller, 1936 [SYNONYM SPECIES 301819:CGZSQ nidx=null parent=37MD4]
Drosophila cinerella
 - Drosophila cinerella Fallén, 1823 [SYNONYM SPECIES 300004:88MJQ nidx=null parent=8BT6R]
 + Drosophila cinerella Fallén, 1823 [SYNONYM SPECIES 301819:6DM4R nidx=null parent=8BT6R]
Dundubia fasciceps
 - Dundubia fasciceps Stål, 1854 [SYNONYM SPECIES 300004:8J37N nidx=null parent=8JJ7R]
 + Dundubia fasciceps Stål, 1854 [SYNONYM SPECIES 301819:382M6 nidx=null parent=8JJ7R]
Dyadimyia aurea
 - Dyadimyia aurea Séguy, 1937 [SYNONYM SPECIES 300004:88NR4 nidx=null parent=C2RY2]
 + Dyadimyia aurea Séguy, 1937 [SYNONYM SPECIES 301819:385HX nidx=null parent=C2RY2]
Dynatosoma gracile
 - Dynatosoma gracile Kertész, 1901 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3V3P nidx=null]
 + Dynatosoma gracile Kertész, 1901 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQK5 nidx=null]
Dysnomia (Scalenilla) sulcata delicata
 - Dysnomia (Scalenilla) sulcata delicata (C. T. Simpson, 1900) [SYNONYM SUBSPECIES 300004:CFTDS nidx=null parent=6G7JL]
 + Dysnomia (Scalenilla) sulcata delicata (C. T. Simpson, 1900) [SYNONYM SUBSPECIES 301819:CH2JQ nidx=null parent=6G7JL]
Echinus (Tripneustes) sardica
 - Echinus (Tripneustes) sardica auct. [SYNONYM SPECIES 300004:C9NC8 nidx=null parent=58YW5]
 + Echinus (Tripneustes) sardica [SYNONYM SPECIES 301819:BSB93 nidx=null parent=58YW5]
Eginea almerae
 - †Eginea almerae (L. M. Vidal, 1898) [ACCEPTED SPECIES 300004:6DYX9 nidx=null]
 + Eginea almerae (Cossmann, 1898) [ACCEPTED SPECIES 301819:CGZHK nidx=null]
Ellesmerocerida
 - †Ellesmerocerida [PROVISIONALLY_ACCEPTED ORDER 300004:C2KFP nidx=null]
 - Ellesmerocerida [SYNONYM ORDER 300004:C5HS5 nidx=null parent=CD8GN]
 + Ellesmerocerida Flower, 1950 [SYNONYM ORDER 301819:CH25R nidx=null parent=CD8GN]
Elliptio aheneus oscari
 - Elliptio aheneus oscari (B. H. Wright, 1892) [SYNONYM SUBSPECIES 300004:CFSWL nidx=null parent=39BKC]
 + Elliptio aheneus oscari (B. H. Wright, 1892) [SYNONYM SUBSPECIES 301819:CH26D nidx=null parent=39BKC]
Empis (Anacrostichus) pachymorion
 - Empis (Anacrostichus) pachymorion Frey, 1935 [ACCEPTED SPECIES 300004:8BZ2N nidx=null]
 + Empis (Anacrostichus) pachymorion Frey, 1935 [ACCEPTED SPECIES 301819:39JJJ nidx=null]
Encephalartos
 - Encephalartos [ACCEPTED GENUS 300004:CD9BN nidx=null]
 + Encephalartos Lehm. [ACCEPTED GENUS 301819:CH2H8 nidx=null]
Encephalartos woodii
 - Encephalartos woodii Sander ex J.M.Wood [ACCEPTED SPECIES 300004:6F868 nidx=null]
 + Encephalartos woodii Sander [ACCEPTED SPECIES 301819:CH2HV nidx=null]
Enterocolinae
 - Enterocolinae Chatton & Hatton, 1924 [SYNONYM SUBFAMILY 300004:7ZFPF nidx=null parent=7NJCM]
 + Enterocolinae Chatton & Hatton, 1922 [SYNONYM SUBFAMILY 301819:CH2XY nidx=null parent=7NJCM]
Eocapnia shigaensis
 - Eocapnia shigaensis Kawai, 1967 [ACCEPTED SPECIES 300004:6FJ2L nidx=null]
 + Eocapnia shigaensis Illies, 1966 [ACCEPTED SPECIES 301819:6FJ2N nidx=null]
Eomonotis setakanensis
 - †Eomonotis setakanensis (Kiparisova, 1936) [ACCEPTED SPECIES 300004:B3D9D nidx=null]
 + Eomonotis setakanensis (Kiparisova, 1961) [ACCEPTED SPECIES 301819:CH382 nidx=null]
Eoschizopera (Praeoschizopera)
 - Eoschizopera (Praeoschizopera) [PROVISIONALLY_ACCEPTED SUBGENUS 300004:BS9PZ nidx=null]
 - Eoschizopera (Praeoschizopera) [SYNONYM SUBGENUS 300004:BS9Q2 nidx=null parent=7NYVC]
 + Eoschizopera (Praeoschizopera) Apostolov, 1982 [PROVISIONALLY_ACCEPTED SUBGENUS 301819:CH3B2 nidx=null]
 + Eoschizopera (Praeoschizopera) Apostolov, 1982 [SYNONYM SUBGENUS 301819:CH3B3 nidx=null parent=7NYVC]
Ephippium nigerrima
 - Ephippium nigerrima Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3V9Z nidx=null]
 + Ephippium nigerrima Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQR6 nidx=null]
Epidapus (Epidapus) microthorax
 - Epidapus (Epidapus) microthorax (Börner, 1903) [ACCEPTED SPECIES 300004:8C2KW nidx=null]
 + Epidapus (Epidapus) microthorax (Börner, 1903) [ACCEPTED SPECIES 301819:6FQHY nidx=null]
Epidapus (Epidapus) schillei
 - Epidapus (Epidapus) schillei (Börner, 1903) [ACCEPTED SPECIES 300004:8C2KY nidx=null]
 + Epidapus (Epidapus) schillei (Börner, 1903) [ACCEPTED SPECIES 301819:6FQHV nidx=null]
Epidapus absoloni
 - Epidapus absoloni Czižek, 1915 [SYNONYM SPECIES 300004:88R6T nidx=null parent=8C2KY]
 + Epidapus absoloni Czižek, 1915 [SYNONYM SPECIES 301819:6G2H7 nidx=null parent=6FQHV]
Epiphragmophora (Micrarionta) guadalupiana
 - Epiphragmophora (Micrarionta) guadalupiana (Pilsbry & Vanatta, 1898) [SYNONYM SPECIES 300004:B8TJN nidx=null parent=B862T]
 + Epiphragmophora (Micrarionta) guadalupiana Dall, 1898 [SYNONYM SPECIES 301819:CGZHR nidx=null parent=42QPH]
Epiphragmophora guadelupiana
 - Epiphragmophora guadelupiana Pilsbry & Vanatta, 1898 [SYNONYM SPECIES 300004:B8PZL nidx=null parent=B862T]
 + Epiphragmophora guadelupiana Dall, 1898 [SYNONYM SPECIES 301819:CGZHS nidx=null parent=42QPH]
Erax nervosus
 - Erax nervosus Macquart, 1838 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3VFS nidx=null]
 + Erax nervosus Macquart, 1838 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQS4 nidx=null]
Eriosoma (Schizoneura) ulmi
 - Eriosoma (Schizoneura) ulmi [AMBIGUOUS_SYNONYM SPECIES 300004:CD95K nidx=null parent=8P9NH]
 + Eriosoma (Schizoneura) ulmi (Linnaeus, 1758) [AMBIGUOUS_SYNONYM SPECIES 301819:CH2DY nidx=null parent=7H3K8]
 + Eriosoma (Schizoneura) ulmi [AMBIGUOUS_SYNONYM SPECIES 301819:CH2F2 nidx=null parent=8P9NH]
Eristalis lapideus
 - †Eristalis lapideus Scudder, 1877 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3VHY nidx=null]
 + Eristalis lapideus Scudder, 1877 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQTJ nidx=null]
Eristalis paucisinuatus
 - †Eristalis paucisinuatus Théobald, 1937 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3RK8 nidx=null]
 + Eristalis paucisinuatus Théobald, 1937 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQTL nidx=null]
Erycina petitiana
 - Erycina petitiana A. d'Orbigny, 1846 [SYNONYM SPECIES 300004:6GQFY nidx=null parent=3SBTN]
 + Erycina petitiana (Récluz, 1843) [SYNONYM SPECIES 301819:CH2LM nidx=null parent=3SBTN]
Ethoiulus
 - Ethoiulus auct. [SYNONYM GENUS 300004:C9SHR nidx=null parent=7NZ6Y]
 + Ethoiulus [SYNONYM GENUS 301819:62RGQ nidx=null parent=7NZ6Y]
Eucyclops (Eucyclops) agiloides agiloides
 - Eucyclops (Eucyclops) agiloides agiloides (Sars G.O., 1909) [ACCEPTED SUBSPECIES 300004:CFVK9 nidx=null]
 + Eucyclops (Eucyclops) agiloides agiloides (Sars G.O., 1909) [ACCEPTED SUBSPECIES 301819:CH3FD nidx=null]
Eucyclops serrulatus defectus
 - Eucyclops serrulatus defectus Lindberg, 1955 [ACCEPTED SUBSPECIES 300004:7ZH4M nidx=null]
 + Eucyclops serrulatus defectus Lindberg, 1937 [ACCEPTED SUBSPECIES 301819:CH3FG nidx=null]
Eudendrium arbusculum
 - Eudendrium arbusculum Hincks, 1868 [SYNONYM SPECIES 300004:3BZHB nidx=null parent=3BZHC]
 + Eudendrium arbusculum Wright, 1859 [SYNONYM SPECIES 301819:CH3GT nidx=null parent=3BZHC]
Eumida (Eumida)
 - Eumida (Eumida) [ACCEPTED SUBGENUS 300004:CD7MT nidx=null]
 + Eumida (Eumida) [ACCEPTED SUBGENUS 301819:CGZPH nidx=null]
Eunice gunneri
 - Eunice gunneri Storm, 1879 [SYNONYM SPECIES 300004:3CF77 nidx=null parent=6GYJV]
 + Eunice gunneri (Storm, 1881) [SYNONYM SPECIES 301819:CGZYH nidx=null parent=6GYJV]
Eupistenus
 - Eupistenus Meigen, 1803 [SYNONYM GENUS 300004:C4C4S nidx=null parent=BYM3Y]
 + Eupistenus [SYNONYM GENUS 301819:CH2F5 nidx=null parent=77F]
Eupyrgota (Taeniomastix) tigrina
 - Eupyrgota (Taeniomastix) tigrina Kim & Han, 2000 [ACCEPTED SPECIES 300004:C5TQS nidx=null]
 + Eupyrgota (Taeniomastix) tigrina Kim & Han, 2000 [ACCEPTED SPECIES 301819:CH2PD nidx=null]
Eurigaster postica
 - Eurigaster postica Walker, 1861 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3VKT nidx=null]
 + Eurigaster postica Walker, 1861 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQZK nidx=null]
Eurigaster strigosa
 - Eurigaster strigosa Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3VKV nidx=null]
 + Eurigaster strigosa Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JQZQ nidx=null]
Eutrichosiphum (Neoparatrichosiphum) flavum
 - Eutrichosiphum (Neoparatrichosiphum) flavum [SYNONYM SPECIES 300004:8QYSM nidx=null parent=6HKSG]
 + Eutrichosiphum (Neoparatrichosiphum) flavum (Takahashi, 1941) [SYNONYM SPECIES 301819:CH35V nidx=null parent=CH35T]
Eutrichosiphum flavum
 - Eutrichosiphum flavum [ACCEPTED SPECIES 300004:6HKSG nidx=null]
 + Eutrichosiphum flavum (Takahashi, 1941) [ACCEPTED SPECIES 301819:CH35T nidx=null]
Euvola papyracea
 - Euvola papyracea auct. [SYNONYM SPECIES 300004:C9RGH nidx=null parent=6HJYF]
 + Euvola papyracea [SYNONYM SPECIES 301819:6HJZT nidx=null parent=6HJYF]
Exumellina bucculenta
 - Exumellina bucculenta Fosshagen & Iliffe, 1998 [ACCEPTED SPECIES 300004:3DQPN nidx=null]
 + Exumellina bucculenta Fosshagen, in: Fosshagen & Iliffe, 1998 [ACCEPTED SPECIES 301819:CH3K2 nidx=null]
Farcimen alutaceum digitale
 - Farcimen alutaceum digitale (Gundlach, 1857) [ACCEPTED SUBSPECIES 300004:7TV9M nidx=null]
 + Farcimen alutaceum digitale (L. Pfeiffer, 1857) [ACCEPTED SUBSPECIES 301819:CGZN2 nidx=null]
Fasciolaria distans
 - Fasciolaria distans auct. [SYNONYM SPECIES 300004:C9TX7 nidx=null parent=VDQJ]
 + Fasciolaria distans [SYNONYM SPECIES 301819:BFXTQ nidx=null parent=VDQJ]
Faunus (Melanatria) almerae
 - Faunus (Melanatria) almerae (L. M. Vidal, 1898) [SYNONYM SPECIES 300004:3DW3Y nidx=null parent=6DYX9]
 + Faunus (Melanatria) almerae (Cossmann, 1898) [SYNONYM SPECIES 301819:CGZNN nidx=null parent=CGZHK]
Fillelum
 - Fillelum [SYNONYM GENUS 300004:BDX47 nidx=null parent=7P2GD]
 + Fillelum Hincks, 1868 [SYNONYM GENUS 301819:CH286 nidx=null parent=7P2GD]
Fissurina quadrata var. rizzae
 - Fissurina quadrata var. rizzae Seguenza, 1862 [SYNONYM VARIETY 300004:857RC nidx=null parent=82HZS]
 + Fissurina quadrata var. rizzae Seguenza, 1862 [SYNONYM VARIETY 301819:5NYZN nidx=null parent=82HZS]
Forcipomyia (Caloforcipomyia) neocaledoniensis
 - Forcipomyia (Caloforcipomyia) neocaledoniensis Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C5SJ nidx=null]
 + Forcipomyia (Caloforcipomyia) neocaledoniensis Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFPF nidx=null]
Forcipomyia (Caloforcipomyia) viridis
 - Forcipomyia (Caloforcipomyia) viridis Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C5T3 nidx=null]
 + Forcipomyia (Caloforcipomyia) viridis Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFM2 nidx=null]
Forcipomyia (Dycea) pachyparamera
 - Forcipomyia (Dycea) pachyparamera Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C5TD nidx=null]
 + Forcipomyia (Dycea) pachyparamera Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFQD nidx=null]
Forcipomyia (Dycea) transversalis
 - Forcipomyia (Dycea) transversalis Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C5TF nidx=null]
 + Forcipomyia (Dycea) transversalis Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFJM nidx=null]
Forcipomyia (Forcipohelea) tillierorum
 - Forcipomyia (Forcipohelea) tillierorum Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C5WQ nidx=null]
 + Forcipomyia (Forcipohelea) tillierorum Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFK4 nidx=null]
Forcipomyia (Forcipomyia) dissimilis
 - Forcipomyia (Forcipomyia) dissimilis Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C5ZG nidx=null]
 + Forcipomyia (Forcipomyia) dissimilis Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JGD4 nidx=null]
Forcipomyia (Forcipomyia) flavipubens
 - Forcipomyia (Forcipomyia) flavipubens Goetghebuer, 1927 [ACCEPTED SPECIES 300004:C3D2S nidx=null]
 + Forcipomyia (Forcipomyia) flavipubens Goetghebuer, 1927 [ACCEPTED SPECIES 301819:CH2LD nidx=null]
Forcipomyia (Lasiohelea) caledonica
 - Forcipomyia (Lasiohelea) caledonica Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6BK nidx=null]
 + Forcipomyia (Lasiohelea) caledonica Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JF22 nidx=null]
Forcipomyia (Lasiohelea) flaveola
 - Forcipomyia (Lasiohelea) flaveola Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6C2 nidx=null]
 + Forcipomyia (Lasiohelea) flaveola Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JG6X nidx=null]
Forcipomyia (Lasiohelea) magnispinosa
 - Forcipomyia (Lasiohelea) magnispinosa Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6CT nidx=null]
 + Forcipomyia (Lasiohelea) magnispinosa Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JFN9 nidx=null]
Forcipomyia (Lasiohelea) matautuensis
 - Forcipomyia (Lasiohelea) matautuensis Clastrier & Delécole, 1996 [ACCEPTED SPECIES 300004:8C6CW nidx=null]
 + Forcipomyia (Lasiohelea) matautuensis Clastrier & Delécolle, 1996 [ACCEPTED SPECIES 301819:6JFMG nidx=null]
Forcipomyia (Lasiohelea) thiensis
 - Forcipomyia (Lasiohelea) thiensis Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6FK nidx=null]
 + Forcipomyia (Lasiohelea) thiensis Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JFHY nidx=null]
Forcipomyia (Lepidohelea) matilei
 - Forcipomyia (Lepidohelea) matilei Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C6H9 nidx=null]
 + Forcipomyia (Lepidohelea) matilei Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFLZ nidx=null]
Forcipomyia (Metaforcipomyia) triclotae
 - Forcipomyia (Metaforcipomyia) triclotae Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C6KC nidx=null]
 + Forcipomyia (Metaforcipomyia) triclotae Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFJL nidx=null]
Forcipomyia (Microhelea) amieuensis
 - Forcipomyia (Microhelea) amieuensis Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6KP nidx=null]
 + Forcipomyia (Microhelea) amieuensis Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JF4D nidx=null]
Forcipomyia (Microhelea) asquamata
 - Forcipomyia (Microhelea) asquamata Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6KV nidx=null]
 + Forcipomyia (Microhelea) asquamata Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JF78 nidx=null]
Forcipomyia (Microhelea) cylindripalpis
 - Forcipomyia (Microhelea) cylindripalpis Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6LD nidx=null]
 + Forcipomyia (Microhelea) cylindripalpis Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JGBW nidx=null]
Forcipomyia (Microhelea) inflatipalpis
 - Forcipomyia (Microhelea) inflatipalpis Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6MR nidx=null]
 + Forcipomyia (Microhelea) inflatipalpis Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JFWQ nidx=null]
Forcipomyia (Microhelea) insulae
 - Forcipomyia (Microhelea) insulae Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6MY nidx=null]
 + Forcipomyia (Microhelea) insulae Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JFWF nidx=null]
Forcipomyia (Microhelea) tiwaka
 - Forcipomyia (Microhelea) tiwaka Clastrier & Delécole, 1993 [ACCEPTED SPECIES 300004:8C6RP nidx=null]
 + Forcipomyia (Microhelea) tiwaka Clastrier & Delécolle, 1993 [ACCEPTED SPECIES 301819:6JFK2 nidx=null]
Forcipomyia (Pedilohelea) australis
 - Forcipomyia (Pedilohelea) australis Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C6SN nidx=null]
 + Forcipomyia (Pedilohelea) australis Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JF72 nidx=null]
Forcipomyia (Phytohelea) musae
 - Forcipomyia (Phytohelea) musae Clastrier & Delécole, 1994 [ACCEPTED SPECIES 300004:8C6VB nidx=null]
 + Forcipomyia (Phytohelea) musae Clastrier & Delécolle, 1994 [ACCEPTED SPECIES 301819:6JFPT nidx=null]
Forcipomyia (Saliohelea) boudinoti
 - Forcipomyia (Saliohelea) boudinoti Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C6Y9 nidx=null]
 + Forcipomyia (Saliohelea) boudinoti Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JF98 nidx=null]
Forcipomyia (Schizoforcipomyia) chazeaui
 - Forcipomyia (Schizoforcipomyia) chazeaui Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C6Z2 nidx=null]
 + Forcipomyia (Schizoforcipomyia) chazeaui Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JF2C nidx=null]
Forcipomyia (Schizoforcipomyia) lydiae
 - Forcipomyia (Schizoforcipomyia) lydiae Clastrier & Delécole, 1991 [ACCEPTED SPECIES 300004:8C6ZJ nidx=null]
 + Forcipomyia (Schizoforcipomyia) lydiae Clastrier & Delécolle, 1991 [ACCEPTED SPECIES 301819:6JFZK nidx=null]
Forcipomyia (Thyridomyia) blascoi
 - Forcipomyia (Thyridomyia) blascoi Delécole & Rieb, 1993 [ACCEPTED SPECIES 300004:8C72R nidx=null]
 + Forcipomyia (Thyridomyia) blascoi Delécolle & Rieb, 1993 [ACCEPTED SPECIES 301819:6JF9D nidx=null]
Forcipomyia (Trichohelea) roubaudi
 - Forcipomyia (Trichohelea) roubaudi Clastrier & Delécole, 1997 [ACCEPTED SPECIES 300004:8C75G nidx=null]
 + Forcipomyia (Trichohelea) roubaudi Clastrier & Delécolle, 1997 [ACCEPTED SPECIES 301819:6JG6B nidx=null]
Forficula (Apterygida) albipennis
 - Forficula (Apterygida) albipennis [SYNONYM SPECIES 300004:BWQBV nidx=null parent=8MWTL]
 + Forficula (Apterygida) albipennis von Muhlfeld, 1825 [SYNONYM SPECIES 301819:CH2MR nidx=null parent=682DK]
Forficula biturberculata
 - Forficula biturberculata [SYNONYM SPECIES 300004:BWQBW nidx=null parent=3HJ2K]
 + Forficula biturberculata (Brindle, 1966) [SYNONYM SPECIES 301819:CH2MW nidx=null parent=3HJ2K]
Forficula fistula
 - Forficula fistula Steinmann, 1990 [ACCEPTED SPECIES 300004:6JH38 nidx=null]
 + Forficula fistula Steinmann, 1993 [ACCEPTED SPECIES 301819:CH2N7 nidx=null]
Forficula major
 - Forficula major de Geer, 1773 [AMBIGUOUS_SYNONYM SPECIES 300004:8MZF9 nidx=null parent=4JS3B]
 + Forficula major de Geer, 1773 [SYNONYM SPECIES 301819:6JH3Q nidx=null parent=6JGYS]
Fungia (Cycloseris) cyclolites
 - Fungia (Cycloseris) cyclolites Lamarck, 1815 [SYNONYM SPECIES 300004:CFV74 nidx=null parent=32WZS]
 + Fungia (Cycloseris) cyclolites Lamarck, 1815 [SYNONYM SPECIES 301819:CH34R nidx=null parent=32WZS]
Fungivora lateralis
 - Fungivora lateralis Santos Abreu, 1920 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3VRL nidx=null]
 + Fungivora lateralis Santos Abreu, 1920 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JR3V nidx=null]
Gibbula kishineviae
 - Gibbula kishineviae (A. d'Orbigny, 1844) [SYNONYM SPECIES 300004:7RF4N nidx=null parent=B6FWX]
 + Gibbula kishineviae [SYNONYM SPECIES 301819:CH37Z nidx=null parent=B6FWX]
Glyptostoma newberryanum depressum
 - Glyptostoma newberryanum depressum F. W. Walker, 1902 [ACCEPTED SUBSPECIES 300004:B75S2 nidx=null]
 + Glyptostoma newberryanum depressum Bryant, 1902 [ACCEPTED SUBSPECIES 301819:CH3RK nidx=null]
Glyptostoma newberryanum var. depressum
 - Glyptostoma newberryanum var. depressum F. W. Walker, 1902 [SYNONYM VARIETY 300004:7V6S7 nidx=null parent=B75S2]
 + Glyptostoma newberryanum var. depressum Bryant, 1902 [SYNONYM VARIETY 301819:CH3RL nidx=null parent=CH3RK]
Gonapodasmius kovaljovae
 - Gonapodasmius kovaljovae Nikolaeva & Gaevskaya, 1985 [SYNONYM SPECIES 300004:848Z3 nidx=null parent=84869]
 + Gonapodasmius kovaljovae Nikolaeva & Gaevskaya, 1985 [SYNONYM SPECIES 301819:3GTVM nidx=null parent=35YSQ]
Gongylostomella (Palenquecoptis)
 - Gongylostomella (Palenquecoptis) [ACCEPTED SUBGENUS 300004:8V29L nidx=null]
 + Gongylostomella (Palenquecoptis) C. de la Torre & Bartsch, 1972 [ACCEPTED SUBGENUS 301819:CH4C2 nidx=null]
Goniagnathus (Tropicognathus) punctifer
 - Goniagnathus (Tropicognathus) punctifer (Walker, 1858) [SYNONYM SPECIES 300004:CFWVF nidx=null parent=B7VNW]
 + Goniagnathus (Tropicognathus) punctifer (Walker, 1858) [SYNONYM SPECIES 301819:CH4CY nidx=null parent=B7VNW]
Goniostomus
 - Goniostomus auct. [SYNONYM GENUS 300004:C9775 nidx=null parent=7P4GY]
 + Goniostomus [SYNONYM GENUS 301819:BGFFP nidx=null parent=7P4GY]
Gorgonia (Litigorgia) adamsii
 - Gorgonia (Litigorgia) adamsii Verrill, 1868 [SYNONYM SPECIES 300004:C9V6R nidx=null parent=4BW4Z]
 + Gorgonia (Litigorgia) adamsii Verrill, 1868 [SYNONYM SPECIES 301819:CH2W8 nidx=null parent=4BW4Z]
Greenidea (Greenidea) sutepensis
 - Greenidea (Greenidea) sutepensis [ACCEPTED SPECIES 300004:C4YVK nidx=null]
 + Greenidea (Greenidea) sutepensis Takahashi, 1941 [ACCEPTED SPECIES 301819:CH3B6 nidx=null]
Greenidea (Trichosiphum) siamensis
 - Greenidea (Trichosiphum) siamensis [ACCEPTED SPECIES 300004:3HC2W nidx=null]
 + Greenidea (Trichosiphum) siamensis Takahashi, 1941 [ACCEPTED SPECIES 301819:CH3B8 nidx=null]
Greenidea sutepensis
 - Greenidea sutepensis [SYNONYM SPECIES 300004:C79KF nidx=null parent=C4YVK]
 + Greenidea sutepensis Takahashi, 1941 [SYNONYM SPECIES 301819:CH3B5 nidx=null parent=CH3B6]
Gryllacris deschampsi
 - Gryllacris deschampsi Bruner, 1915 [SYNONYM SPECIES 300004:8PBJT nidx=null parent=8PXHB]
 + Gryllacris deschampsi Griffini, 1914 [SYNONYM SPECIES 301819:CH3G8 nidx=null parent=CGTXV]
Gymnopis multiplicatus oaxacae
 - Gymnopis multiplicatus oaxacae (Mertens, 1930) [SYNONYM SUBSPECIES 300004:C9ZJH nidx=null parent=34XMJ]
 + Gymnopis multiplicatus oaxacae (Mertens, 1930) [SYNONYM SUBSPECIES 301819:CH3QR nidx=null parent=34XMJ]
Gyrineum pusillum
 - Gyrineum pusillum auct. [AMBIGUOUS_SYNONYM SPECIES 300004:CB2DL nidx=null parent=6L7GM]
 + Gyrineum pusillum [AMBIGUOUS_SYNONYM SPECIES 301819:3HYRM nidx=null parent=6L7GM]
Haplochilus atripinnis
 - Haplochilus atripinnis () non Pfeffer, 1896 [MISAPPLIED SPECIES 300004:CFXJ3 nidx=null parent=3RTNJ]
 + Haplochilus atripinnis () [MISAPPLIED SPECIES 301819:CH4VX nidx=null parent=3RTNJ]
Hardya signifera
 - Hardya signifera Then, 1897 [SYNONYM SPECIES 300004:8RKWY nidx=null parent=9K89Z]
 + Hardya signifera Then, 1897 [SYNONYM SPECIES 301819:CH54J nidx=null parent=9K89Z]
Harpago chiragra chiragra
 - Harpago chiragra chiragra (Linnaeus, 1758) [ACCEPTED SUBSPECIES 300004:8SY5V nidx=null]
 + Harpago chiragra chiragra (Linnaeus, 1758) [SYNONYM SUBSPECIES 301819:5HLK8 nidx=null parent=3JS8R]
Hecalus reticulatus
 - Hecalus reticulatus (Linnavuori, 1962) [SYNONYM SPECIES 300004:8RB5Q nidx=null parent=6LGSP]
 + Hecalus reticulatus Linnavuori, 1975 [ACCEPTED SPECIES 301819:3JYKW nidx=null]
Helcogramma obtusirostris
 - Helcogramma obtusirostris () non Klunzinger, 1871 [MISAPPLIED SPECIES 300004:CFW3G nidx=null parent=3K47K]
 + Helcogramma obtusirostris () [MISAPPLIED SPECIES 301819:CH3R6 nidx=null parent=3K47K]
Heliacus dorsuosus
 - Heliacus dorsuosus auct. [SYNONYM SPECIES 300004:CB38Z nidx=null parent=8V86F]
 + Heliacus dorsuosus [SYNONYM SPECIES 301819:BH5MR nidx=null parent=8V86F]
Helice latreilli
 - Helice latreilli (H. Milne Edwards, 1837) [SYNONYM SPECIES 300004:CB3GB nidx=null parent=3K69J]
 + Helice latreilli (H. Milne Edwards, 1837) [SYNONYM SPECIES 301819:CH3SQ nidx=null parent=3K69J]
Heliconoides inflata
 - Heliconoides inflata [SYNONYM SPECIES 300004:C57K8 nidx=null parent=3K8ZD]
 + Heliconoides inflata (A. d'Orbigny, 1835) [SYNONYM SPECIES 301819:CH3XF nidx=null parent=3K8ZD]
Helicostyla (Leytia)
 - Helicostyla (Leytia) Pilsbry, 1891 [SYNONYM SUBGENUS 300004:CFMQ2 nidx=null parent=7P7FV]
 + Helicostyla (Leytia) Pilsbry, 1891 [SYNONYM SUBGENUS 301819:CGWZ9 nidx=null parent=7P7FV]
Helminthoglypta callistoderma
 - Helminthoglypta callistoderma (Pilsbry & Ferriss, 1919) [ACCEPTED SPECIES 300004:7RN8X nidx=null]
 + Helminthoglypta callistoderma (Pilsbry & Ferriss, 1917) [ACCEPTED SPECIES 301819:CH4H2 nidx=null]
Helomyza fasciata
 - Helomyza fasciata Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3VX6 nidx=null]
 + Helomyza fasciata Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JR6B nidx=null]
Helomyza robusta
 - Helomyza robusta Walker, 1858 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3VX7 nidx=null]
 + Helomyza robusta Walker, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JR6F nidx=null]
Henneguya zschokkei
 - Henneguya zschokkei Doflein, 1901 [ACCEPTED SPECIES 300004:BTR4L nidx=null]
 + Henneguya zschokkei (Gurley, 1893) [ACCEPTED SPECIES 301819:CH52W nidx=null]
Hercostomus (Hercostomus) conglomeratus
 - Hercostomus (Hercostomus) conglomeratus Wei & Song, 2006 [SYNONYM SPECIES 300004:92SDT nidx=null parent=8CBDR]
 + Hercostomus (Hercostomus) conglomeratus Wei & Song, 2006 [SYNONYM SPECIES 301819:8CBB7 nidx=null parent=8CBDR]
Hercostomus (Hercostomus) cyphus
 - Hercostomus (Hercostomus) cyphus Wei & Song, 2006 [SYNONYM SPECIES 300004:8CBBQ nidx=null parent=8CBFL]
 + Hercostomus (Hercostomus) cyphus Wei & Song, 2006 [SYNONYM SPECIES 301819:92SDX nidx=null parent=8CBFL]
Hercostomus (Hercostomus) hilarosus
 - Hercostomus (Hercostomus) hilarosus Wei & Song, 2006 [SYNONYM SPECIES 300004:8CBD6 nidx=null parent=8CBDR]
 + Hercostomus (Hercostomus) hilarosus Wei & Song, 2006 [SYNONYM SPECIES 301819:92SF4 nidx=null parent=8CBDR]
Heriades syriacus
 - Heriades syriacus Benoist, 1928 [SYNONYM SPECIES 300004:CFY4T nidx=null parent=6M3TN]
 + Heriades syriacus Benoist, 1928 [SYNONYM SPECIES 301819:CH563 nidx=null parent=6M3TN]
Heteronychia cataphygionis
 - Heteronychia cataphygionis Povolný, 1999 [SYNONYM SPECIES 300004:88ZML nidx=null parent=8DPVV]
 + Heteronychia cataphygionis Povolný, 1999 [SYNONYM SPECIES 301819:6M4C9 nidx=null parent=8DPVV]
Hexangium affinum
 - Hexangium affinum Tubangui & Masilungan, 1944 [SYNONYM SPECIES 300004:849CF nidx=null parent=3LGLM]
 + Hexangium affinum Tubangui & Masiluñgan, 1944 [SYNONYM SPECIES 301819:6LTFN nidx=null parent=3LGLM]
Hippobosca moschi
 - Hippobosca moschi Pallas, 1779 [SYNONYM SPECIES 300004:3LZJ7 nidx=null parent=3VB49]
 + Hippobosca moschi Pallas, 1777 [SYNONYM SPECIES 301819:CH4G2 nidx=null parent=3VB49]
Hippopotamenema
 - Hippopotamenema [ACCEPTED GENUS 300004:9C8B4 nidx=null]
 + Hippopotamenema Sagata & Buddhadeb, 2015 [ACCEPTED GENUS 301819:CH4H3 nidx=null]
Holmiceras
 - †Holmiceras Hyatt, 1884 [ACCEPTED GENUS 300004:C5H67 nidx=null]
 + Holmiceras Hyatt, 1894 [ACCEPTED GENUS 301819:CH4PF nidx=null]
Huechys (Huechys) fusca haematica
 - Huechys (Huechys) fusca haematica Distant, 1888 [SYNONYM SUBSPECIES 300004:BQ5SC nidx=null parent=3MSP2]
 + Huechys (Huechys) fusca haematica Distant, 1888 [SYNONYM SUBSPECIES 301819:CH5FW nidx=null parent=3MSP2]
Hydrobia (Hydrobia) elongata procerula
 - Hydrobia (Hydrobia) elongata procerula Wenz, 1925 [SYNONYM SUBSPECIES 300004:C9ZZD nidx=null parent=3N5DR]
 + Hydrobia (Hydrobia) elongata procerula Wenz, 1925 [SYNONYM SUBSPECIES 301819:CH3N8 nidx=null parent=3N5DR]
Hydroida
 - Hydroida [SYNONYM ORDER 300004:BDWMZ nidx=null parent=7NF5F]
 + Hydroida Johnston, 1937 [SYNONYM ORDER 301819:CH3QD nidx=null parent=7NF5F]
Hyla vautierii
 - Hyla vautierii Bibron in Bell, 1843 [SYNONYM SPECIES 300004:CFW96 nidx=null parent=M82C]
 + Hyla vautierii Bibron in Bell, 1843 [SYNONYM SPECIES 301819:CH3V4 nidx=null parent=M82C]
Idothea (Pentidotea)
 - Idothea (Pentidotea) Richardson, 1905 [SYNONYM SUBGENUS 300004:CFYMH nidx=null parent=7PQS3]
 + Idothea (Pentidotea) Richardson, 1905 [SYNONYM SUBGENUS 301819:CH5J8 nidx=null parent=7PQS3]
Idyaeidae
 - Idyaeidae Sars M., 1910 [SYNONYM FAMILY 300004:BG3V3 nidx=null parent=7NLCD]
 + Idyaeidae Sars G.O., 1910 [SYNONYM FAMILY 301819:CH5JH nidx=null parent=7NLCD]
Ilyanthus (Mesacmaea) mitchellii
 - Ilyanthus (Mesacmaea) mitchellii (Gosse, 1853) [SYNONYM SPECIES 300004:CFYSF nidx=null parent=3ZXGF]
 + Ilyanthus (Mesacmaea) mitchellii (Gosse, 1853) [SYNONYM SPECIES 301819:CH5N8 nidx=null parent=3ZXGF]
Inioteuthis japonica
 - Inioteuthis japonica (Tilesius, 1845) [ACCEPTED SPECIES 300004:C7M3Z nidx=null]
 + Inioteuthis japonica (A. d'Orbigny, 1845) [ACCEPTED SPECIES 301819:CH6XZ nidx=null]
Iophon spatulatus var. gaussi
 - Iophon spatulatus var. gaussi Hentschel, 1914 [SYNONYM VARIETY 300004:CFW92 nidx=null parent=6MX8J]
 + Iophon spatulatus var. gaussi Hentschel, 1914 [SYNONYM VARIETY 301819:CH3TX nidx=null parent=6MX8J]
Isoperla clio
 - Isoperla clio [SYNONYM SPECIES 300004:CDF98 nidx=null parent=W7MW]
 + Isoperla clio (Newman, 1839) [SYNONYM SPECIES 301819:6MZVS nidx=null parent=W7MW]
Isoperla transmarine
 - Isoperla transmarine [SYNONYM SPECIES 300004:8NGNQ nidx=null parent=3QB29]
 + Isoperla transmarine Newman, 1838 [SYNONYM SPECIES 301819:CH4KS nidx=null parent=3QB29]
Isoplastus formulosus
 - Isoplastus formulosus Skuse, 1889 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3W7T nidx=null]
 + Isoplastus formulosus Skuse, 1889 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JRHJ nidx=null]
Isoplastus paivai
 - Isoplastus paivai Kieffer, 1910 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3W7V nidx=null]
 + Isoplastus paivai Kieffer, 1910 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JRHS nidx=null]
Isthmiophora hortensis
 - Isthmiophora hortensis (Asada, 1926) Kostadinova & Gibson, 2002 [ACCEPTED SPECIES 300004:8N8NN nidx=null]
 + Isthmiophora hortensis (Asada, 1926) Kostadinova & Gibson, 2002 [ACCEPTED SPECIES 301819:8M27X nidx=null]
Iteaphilinae
 - Iteaphilinae [ACCEPTED SUBFAMILY 300004:CDFJF nidx=null]
 + Iteaphilinae Wahlberg & Johasnsen, 2018 [ACCEPTED SUBFAMILY 301819:CH4PY nidx=null]
Iulus
 - Iulus auct. [SYNONYM GENUS 300004:CB2NY nidx=null parent=7P7L5]
 + Iulus [SYNONYM GENUS 301819:CH4QY nidx=null parent=7P7L5]
Janua (Dexiospira) pagenstecheri
 - Janua (Dexiospira) pagenstecheri (Quatrefages, 1866) [SYNONYM SPECIES 300004:CB3TN nidx=null parent=3QLM3]
 + Janua (Dexiospira) pagenstecheri (Quatrefages, 1866) [SYNONYM SPECIES 301819:CH54W nidx=null parent=3QLM3]
Jassus (Thamnotettix) quadripunctulatus
 - Jassus (Thamnotettix) quadripunctulatus Kirschbaum, 1868 [SYNONYM SPECIES 300004:CFY8Q nidx=null parent=9KG8D]
 + Jassus (Thamnotettix) quadripunctulatus Kirschbaum, 1868 [SYNONYM SPECIES 301819:CH59F nidx=null parent=9KG8D]
Jassus gyllenhalii
 - Jassus gyllenhalii Fallén, 1826 [SYNONYM SPECIES 300004:CFY8Y nidx=null parent=YRYS]
 + Jassus gyllenhalii Fallén, 1826 [SYNONYM SPECIES 301819:CH59H nidx=null parent=YRYS]
Jujubinus subturgidulus
 - †Jujubinus subturgidulus (A. d'Orbigny, 1850) [ACCEPTED SPECIES 300004:7RRYB nidx=null]
 + Jujubinus subturgidulus (A. d'Orbigny, 1852) [ACCEPTED SPECIES 301819:CH5FM nidx=null]
Julus imbecillus
 - Julus imbecillus Latzel, 1884 [SYNONYM SPECIES 300004:C5VMZ nidx=null parent=7FXXN]
 + Julus imbecillus Latzel, 1884 [SYNONYM SPECIES 301819:CH5G2 nidx=null parent=7FXXN]
Kamimuria navasa
 - Kamimuria navasa [SYNONYM SPECIES 300004:8N23X nidx=null parent=5TSVX]
 + Kamimuria navasa (Claassen, 1936) [SYNONYM SPECIES 301819:3QZWR nidx=null parent=5TSVX]
Keenocardium californiense californiense
 - Keenocardium californiense californiense (Deshayes, 1839) [ACCEPTED SUBSPECIES 300004:8SY6K nidx=null]
 + Keenocardium californiense californiense (Deshayes, 1839) [SYNONYM SUBSPECIES 301819:5J73N nidx=null parent=6NJCG]
Kellia subelliptica
 - Kellia subelliptica Yokoyama, 1924 [ACCEPTED SPECIES 300004:3R4ZD nidx=null]
 + Kellia subelliptica Yokoyama, 1927 [ACCEPTED SPECIES 301819:CH629 nidx=null]
Labeo forskalli
 - Labeo forskalli () non Rüppell, 1835 [MISAPPLIED SPECIES 300004:CFXCS nidx=null parent=6NPVD]
 + Labeo forskalli () [MISAPPLIED SPECIES 301819:CH4RC nidx=null parent=6NPVD]
Laetmatonice
 - Laetmatonice [auctt.] [SYNONYM GENUS 300004:BG283 nidx=null parent=84PGZ]
 + Laetmatonice [SYNONYM GENUS 301819:CH5BL nidx=null parent=84PGZ]
Laetmatonice producta
 - Laetmatonice producta [auct. misspelling of Laetmonice] [SYNONYM SPECIES 300004:C4GKJ nidx=null parent=6NSV9]
 + Laetmatonice producta [SYNONYM SPECIES 301819:3RV8G nidx=null parent=6NSV9]
Laona finmarchica
 - Laona finmarchica (M. Sars, 1859) [ACCEPTED SPECIES 300004:3S87Y nidx=null]
 + Laona finmarchica (M. Sars, 1859) [SYNONYM SPECIES 301819:7RTKZ nidx=null parent=7SSZ6]
Laophonte baltica baltica
 - Laophonte baltica baltica Drzycimski, 1993 [SYNONYM SUBSPECIES 300004:8TX9V nidx=null parent=6NWRH]
 + Laophonte baltica baltica Klie, 1929 [SYNONYM SUBSPECIES 301819:CH5VH nidx=null parent=6NWRH]
Lasioptera argyrostacta
 - Lasioptera argyrostacta Meigen, 1818 [SYNONYM SPECIES 300004:BZB56 nidx=null parent=92SRF]
 + Lasioptera argyrostacta Schrank, 1803 [SYNONYM SPECIES 301819:CH64T nidx=null parent=3SG4V]
Lasiopterinae
 - Lasiopterinae Rondani, 1856 [ACCEPTED SUBFAMILY 300004:CDJDZ nidx=null]
 + Lasiopterinae [ACCEPTED SUBFAMILY 301819:CH64V nidx=null]
Lasiopterini
 - Lasiopterini [ACCEPTED TRIBE 300004:CDJF2 nidx=null]
 + Lasiopterini Rondani, 1856 [ACCEPTED TRIBE 301819:CH64W nidx=null]
Latrunculus (Peridipsaccus)
 - Latrunculus (Peridipsaccus) Rovereto, 1900 [SYNONYM SUBGENUS 300004:C9LVY nidx=null parent=7NS8Y]
 + Latrunculus (Peridipsaccus) Rovereto, 1900 [SYNONYM SUBGENUS 301819:CGXXQ nidx=null parent=7NS8Y]
Laurus cassia
 - Laurus cassia Wight ex Nees [AMBIGUOUS_SYNONYM SPECIES 300004:6P4CR nidx=null parent=5YVFZ]
 + Laurus cassia Nees [SYNONYM SPECIES 301819:CH68B nidx=null parent=5YVKR]
 + Laurus cassia Wight ex Nees [AMBIGUOUS_SYNONYM SPECIES 301819:CH68C nidx=null parent=5YVFZ]
Lebouria choerodonis
 - Lebouria choerodonis Yamaguti, 1934 [SYNONYM SPECIES 300004:849MW nidx=null parent=69Z35]
 + Lebouria choerodonis Yamaguti, 1934 [SYNONYM SPECIES 301819:3SQWW nidx=null parent=69Z35]
Leiosolenus (Diberus)
 - Leiosolenus (Diberus) Dall, 1898 [SYNONYM SUBGENUS 300004:CFPHB nidx=null parent=7P74R]
 + Leiosolenus (Diberus) Dall, 1898 [SYNONYM SUBGENUS 301819:CGYBL nidx=null parent=7P74R]
Leiosolenus (Labis)
 - Leiosolenus (Labis) Dall, 1916 [SYNONYM SUBGENUS 300004:C7F9H nidx=null parent=7P74R]
 + Leiosolenus (Labis) Dall, 1916 [SYNONYM SUBGENUS 301819:CH4SF nidx=null parent=7P74R]
Lepeophteirus
 - Lepeophteirus [SYNONYM GENUS 300004:BGHN5 nidx=null parent=7P9BJ]
 + Lepeophteirus Nordmann, 1832 [SYNONYM GENUS 301819:CH5DB nidx=null parent=7P9BJ]
Lepidozamia
 - Lepidozamia [ACCEPTED GENUS 300004:CDHBT nidx=null]
 + Lepidozamia Regel [ACCEPTED GENUS 301819:CH5LQ nidx=null]
Leptacris pretoriae
 - Leptacris pretoriae [SYNONYM SPECIES 300004:BT4RJ nidx=null parent=92JG]
 + Leptacris pretoriae (Miller, 1932) [SYNONYM SPECIES 301819:8PZQX nidx=null parent=92JG]
Leptis inutilis
 - Leptis inutilis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3WDS nidx=null]
 + Leptis inutilis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JRMR nidx=null]
Leptoconops (Leptoconops) bezzii
 - Leptoconops (Leptoconops) bezzii (Noè, 1905) [ACCEPTED SPECIES 300004:8CHVS nidx=null]
 + Leptoconops (Leptoconops) bezzii (Noè, 1905) [ACCEPTED SPECIES 301819:3TMJP nidx=null]
Leptoconops (Leptoconops) irritans
 - Leptoconops (Leptoconops) irritans (Noè, 1905) [ACCEPTED SPECIES 300004:8CHWR nidx=null]
 + Leptoconops (Leptoconops) irritans (Noè, 1905) [ACCEPTED SPECIES 301819:3TMKZ nidx=null]
Leptodiaptomus pallidus
 - Leptodiaptomus pallidus (Light, 1938) [SYNONYM SPECIES 300004:3TNQB nidx=null parent=6YS9Y]
 + Leptodiaptomus pallidus (Herrick, 1879) [SYNONYM SPECIES 301819:CH5Z9 nidx=null parent=6YS9Y]
Leptopontiinae
 - Leptopontiinae [ACCEPTED SUBFAMILY 300004:7ZFPS nidx=null]
 + Leptopontiinae Lang, 1948 [ACCEPTED SUBFAMILY 301819:CH664 nidx=null]
Leucetta haeckeliana
 - Leucetta haeckeliana Poléjaeff, 1883 [SYNONYM SPECIES 300004:BBRZM nidx=null parent=B8RP9]
 + Leucetta haeckeliana Poléjaeff, 1883 [SYNONYM SPECIES 301819:723LB nidx=null parent=B8RP9]
Leucozona (Ischyrosyrphus) laternaria
 - Leucozona (Ischyrosyrphus) laternaria (Müller, 1776) [ACCEPTED SPECIES 300004:8CJS8 nidx=null]
 + Leucozona (Ischyrosyrphus) laternaria (Müller, 1776) [ACCEPTED SPECIES 301819:72834 nidx=null]
Leuctra ferruginea
 - Leuctra ferruginea Provancher, 1876 [SYNONYM SPECIES 300004:CB6H8 nidx=null parent=6Q7PX]
 + Leuctra ferruginea Provancher, 1878 [SYNONYM SPECIES 301819:6PVRT nidx=null parent=6Q7PX]
Limea (Gemellima) eocaenica
 - Limea (Gemellima) eocaenica de Laubrière, 1881 [SYNONYM SPECIES 300004:8ZCLF nidx=null parent=8YMYJ]
 + Limea (Gemellima) eocaenica [SYNONYM SPECIES 301819:CH7BN nidx=null parent=8YMYJ]
Linnaemya retroflexa
 - Linnaemya retroflexa Pandellé, 1895 [SYNONYM SPECIES 300004:8988X nidx=null parent=8CMJY]
 + Linnaemya retroflexa Pandellé, 1895 [SYNONYM SPECIES 301819:72HNH nidx=null parent=8CMJY]
Liocallonia (Cenocoptis)
 - Liocallonia (Cenocoptis) Jaume & de la Torre, 1976 [SYNONYM SUBGENUS 300004:BGWMQ nidx=null parent=7P7L4]
 + Liocallonia (Cenocoptis) C. de la Torre & Bartsch, 1972 [SYNONYM SUBGENUS 301819:CGW45 nidx=null parent=7P7L4]
Lituites
 - †Lituites Gesner, 1758 [ACCEPTED GENUS 300004:CG287 nidx=null]
 + Lituites Bertrand, 1763 [ACCEPTED GENUS 301819:CH6PX nidx=null]
Lizusidae
 - Lizusidae Haeckel, 1879 [SYNONYM SUBFAMILY 300004:BDWSR nidx=null parent=7NG62]
 + Lizusidae Haeckel, 1879 [SYNONYM FAMILY 301819:CH6SR nidx=null parent=7NG62]
Lobularia
 - Lobularia Savigny, 1815 [SYNONYM GENUS 300004:BDWHK nidx=null parent=84NLS]
 + Lobularia Lamarck, 1816 [SYNONYM GENUS 301819:CH6XX nidx=null parent=84NLS]
Loligopsidae
 - Loligopsidae Gray, 1849 [SYNONYM FAMILY 300004:BG3Y7 nidx=null parent=7NGZ5]
 + Loligopsidae A. d'Orbigny, 1842 [SYNONYM FAMILY 301819:CH72L nidx=null parent=7NGZ5]
Loripes brasilianus
 - Loripes brasilianus (A. d'Orbigny, 1842) [ACCEPTED SPECIES 300004:6QNYZ nidx=null]
 + Loripes brasilianus (A. d'Orbigny, 1846) [ACCEPTED SPECIES 301819:CH7L7 nidx=null]
Lucilia abdominalis
 - Lucilia abdominalis Séguy, 1934 [SYNONYM SPECIES 300004:89973 nidx=null parent=3WBYW]
 + Lucilia abdominalis Séguy, 1934 [SYNONYM SPECIES 301819:3WBQJ nidx=null parent=3WBYW]
Lucina (Codakia) quadrata
 - Lucina (Codakia) quadrata Angas, 1877 [SYNONYM SPECIES 300004:8KSQW nidx=null parent=C76JT]
 + Lucina (Codakia) quadrata Angas, 1877 [SYNONYM SPECIES 301819:3WCDK nidx=null parent=C76JT]
Lucina brasiliana
 - Lucina brasiliana A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:3WC7T nidx=null parent=6QNYZ]
 + Lucina brasiliana A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CH7S8 nidx=null parent=CH7L7]
Lycoriella (Lycoriella) subterranea
 - Lycoriella (Lycoriella) subterranea (Märkel, 1844) [ACCEPTED SPECIES 300004:8CP3H nidx=null]
 + Lycoriella (Lycoriella) subterranea (Märkel, 1844) [ACCEPTED SPECIES 301819:6R3CQ nidx=null]
Lygaeus (Ochrostomus) pulchellus
 - Lygaeus (Ochrostomus) pulchellus Fabricius, 1794 [SYNONYM SPECIES 300004:CFZ9F nidx=null parent=74GFG]
 + Lygaeus (Ochrostomus) pulchellus Fabricius, 1794 [SYNONYM SPECIES 301819:CH5XL nidx=null parent=74GFG]
Lygosoma (Siaphos) burgeoni
 - Lygosoma (Siaphos) burgeoni de Witte, 1933 [SYNONYM SPECIES 300004:8H67M nidx=null parent=4C9F8]
 + Lygosoma (Siaphos) burgeoni de Witte, 1933 [SYNONYM SPECIES 301819:72R7L nidx=null parent=4C9F8]
Macrosiphum cerealis
 - Macrosiphum cerealis [SYNONYM SPECIES 300004:8PDHZ nidx=null parent=4XT9C]
 + Macrosiphum cerealis [SYNONYM SPECIES 301819:733QM nidx=null parent=4XT9C]
Macrosteles (Erotettix) cyane
 - Macrosteles (Erotettix) cyane (Boheman, 1845) [SYNONYM SPECIES 300004:8JW7C nidx=null parent=8JW7D]
 + Macrosteles (Erotettix) cyane (Boheman, 1845) [SYNONYM SPECIES 301819:CH6PD nidx=null parent=8JW7D]
Macrosteles (Macrosteles) alpinus
 - Macrosteles (Macrosteles) alpinus (Zetterstedt, 1828) [SYNONYM SPECIES 300004:8JW7J nidx=null parent=9KG7H]
 + Macrosteles (Macrosteles) alpinus (Zetterstedt, 1828) [SYNONYM SPECIES 301819:CH6PF nidx=null parent=9KG7H]
Macrosteles (Macrosteles) fieberi
 - Macrosteles (Macrosteles) fieberi (Edwards, 1889) [SYNONYM SPECIES 300004:8JW8M nidx=null parent=BHXK3]
 + Macrosteles (Macrosteles) fieberi (Edwards, 1889) [SYNONYM SPECIES 301819:CH6PK nidx=null parent=BHXK3]
Macrosteles (Macrosteles) frontalis
 - Macrosteles (Macrosteles) frontalis (Scott, 1875) [SYNONYM SPECIES 300004:C55F9 nidx=null parent=8JW8S]
 + Macrosteles (Macrosteles) frontalis (Scott, 1875) [SYNONYM SPECIES 301819:8JW8R nidx=null parent=8JW8S]
Macrosteles (Macrosteles) horvathi
 - Macrosteles (Macrosteles) horvathi (Wagner, 1935) [SYNONYM SPECIES 300004:CG27X nidx=null parent=BQ74B]
 + Macrosteles (Macrosteles) horvathi (Wagner, 1935) [SYNONYM SPECIES 301819:8JW92 nidx=null parent=BQ74B]
Macrosteles (Macrosteles) laevis
 - Macrosteles (Macrosteles) laevis (Ribaut, 1927) [SYNONYM SPECIES 300004:C7N89 nidx=null parent=8JW99]
 + Macrosteles (Macrosteles) laevis (Ribaut, 1927) [SYNONYM SPECIES 301819:8JW9B nidx=null parent=8JW99]
Macrosteles (Macrosteles) lineatifrons
 - Macrosteles (Macrosteles) lineatifrons (Stål, 1858) [SYNONYM SPECIES 300004:8JW9J nidx=null parent=8JW9H]
 + Macrosteles (Macrosteles) lineatifrons (Stål, 1858) [SYNONYM SPECIES 301819:CH6PM nidx=null parent=8JW9H]
Macrosteles (Macrosteles) quadrilineatus
 - Macrosteles (Macrosteles) quadrilineatus (Forbes, 1885) [SYNONYM SPECIES 300004:CDKPF nidx=null parent=8JWBD]
 + Macrosteles (Macrosteles) quadrilineatus (Forbes, 1885) [SYNONYM SPECIES 301819:8JWBC nidx=null parent=8JWBD]
Macrosteles (Macrosteles) ramosus
 - Macrosteles (Macrosteles) ramosus Ribaut, 1952 [SYNONYM SPECIES 300004:9KG8F nidx=null parent=8J86D]
 + Macrosteles (Macrosteles) ramosus Ribaut, 1952 [SYNONYM SPECIES 301819:8JWBK nidx=null parent=8J86D]
Macrozamia
 - Macrozamia [ACCEPTED GENUS 300004:CD9BW nidx=null]
 + Macrozamia Miq. [ACCEPTED GENUS 301819:CH2HR nidx=null]
Mactra isabelleana
 - Mactra isabelleana A. d'Orbigny, 1846 [ACCEPTED SPECIES 300004:3XDDF nidx=null]
 + Mactra isabelleana A. d'Orbigny, 1841 [SYNONYM SPECIES 301819:CH6V2 nidx=null parent=CHGJC]
Mactra patagonica
 - †Mactra patagonica A. d'Orbigny, 1846 [ACCEPTED SPECIES 300004:3XDFM nidx=null]
 + Mactra patagonica A. d'Orbigny, 1841 [ACCEPTED SPECIES 301819:CH6TV nidx=null]
Mactra petitii
 - Mactra petitii A. d'Orbigny, 1846 [ACCEPTED SPECIES 300004:3XDFT nidx=null]
 + Mactra petitii A. d'Orbigny, 1841 [SYNONYM SPECIES 301819:CH6V3 nidx=null parent=CHGJD]
Manayunkia caspica danubialis
 - Manayunkia caspica danubialis Bacescu in Dumitrescu, 1957 [ACCEPTED SUBSPECIES 300004:7HCPV nidx=null]
 + Manayunkia caspica danubialis Băcescu, 1948 [SYNONYM SUBSPECIES 301819:CH7JX nidx=null parent=CHLQG]
Marginella bella
 - Marginella bella auct. [SYNONYM SPECIES 300004:CDMZX nidx=null parent=5BQC2]
 - Marginella bella auct. [SYNONYM SPECIES 300004:CG3WD nidx=null parent=4N8HW]
 + Marginella bella [SYNONYM SPECIES 301819:BPJ48 nidx=null parent=5BQC2]
 + Marginella bella [SYNONYM SPECIES 301819:CH834 nidx=null parent=4N8HW]
Matsumura
 - Matsumura [SYNONYM GENUS 300004:8R2R8 nidx=null parent=5M2K]
 + Matsumura Schumacher, 1921 [SYNONYM GENUS 301819:CH6H4 nidx=null parent=CH6H5]
Matsumuraja
 - Matsumuraja [ACCEPTED GENUS 300004:5M2K nidx=null]
 + Matsumuraja Schumacher, 1921 [ACCEPTED GENUS 301819:CH6H5 nidx=null]
Megalomastoma (Farcimen) digitale
 - Megalomastoma (Farcimen) digitale Gundlach, 1857 [SYNONYM SPECIES 300004:7S3KZ nidx=null parent=7TV9M]
 + Megalomastoma (Farcimen) digitale L. Pfeiffer, 1857 [SYNONYM SPECIES 301819:CH6YH nidx=null parent=CGZN2]
Megalomastoma digitale
 - Megalomastoma digitale Gundlach, 1857 [SYNONYM SPECIES 300004:7S3M5 nidx=null parent=7TV9M]
 + Megalomastoma digitale L. Pfeiffer, 1857 [SYNONYM SPECIES 301819:CH6YJ nidx=null parent=CGZN2]
Megamecus (Gnathomecus)
 - Megamecus (Gnathomecus) Reitter, 1903 [ACCEPTED SUBGENUS 300004:8KGJM nidx=null]
 + Megamecus (Gnathomecus) [ACCEPTED SUBGENUS 301819:CH3T6 nidx=null]
Megaselia aulaeae
 - Megaselia aulaeae Disney, 2018 [ACCEPTED SPECIES 300004:9HWWD nidx=null]
 + Megaselia aulaeae Disney, 2020 [ACCEPTED SPECIES 301819:CH75D nidx=null]
Megaselia hortensis
 - Megaselia hortensis Disney, 2018 [SYNONYM SPECIES 300004:9HBH9 nidx=null parent=8CQTW]
 + Megaselia hortensis Disney, 2020 [SYNONYM SPECIES 301819:CH74Z nidx=null parent=8CQTW]
Megaselia sognensis
 - Megaselia sognensis Disney, 2018 [ACCEPTED SPECIES 300004:9HSHW nidx=null]
 + Megaselia sognensis Disney, 2020 [ACCEPTED SPECIES 301819:CH76B nidx=null]
Megaselia strynensis
 - Megaselia strynensis Disney, 2018 [ACCEPTED SPECIES 300004:9HYRD nidx=null]
 + Megaselia strynensis Disney, 2020 [ACCEPTED SPECIES 301819:CH7B9 nidx=null]
Megaselia vestfoldensis
 - Megaselia vestfoldensis Disney, 2018 [ACCEPTED SPECIES 300004:9HVY3 nidx=null]
 + Megaselia vestfoldensis Disney, 2020 [ACCEPTED SPECIES 301819:CH7BK nidx=null]
Mehratrema militaris
 - Mehratrema militaris Dutta, 1995 [SYNONYM SPECIES 300004:849ZZ nidx=null parent=446P6]
 + Mehratrema militaris Dutta, 1995 [SYNONYM SPECIES 301819:3Z2PH nidx=null parent=446P6]
Melampsalta isshikii
 - Melampsalta isshikii Kato, 1926 [SYNONYM SPECIES 300004:CDM4X nidx=null parent=55V52]
 + Melampsalta isshikii Kato, 1926 [SYNONYM SPECIES 301819:CH7KW nidx=null parent=55V52]
Melampus hemphillii
 - Melampus hemphillii (Dall, 1884) [SYNONYM SPECIES 300004:739QW nidx=null parent=6XSP3]
 + Melampus hemphillii Dall, 1889 [ACCEPTED SPECIES 301819:CH7LK nidx=null]
Melania almerae
 - Melania almerae L. M. Vidal, 1898 [SYNONYM SPECIES 300004:3Z77T nidx=null parent=6DYX9]
 + Melania almerae Cossmann, 1898 [SYNONYM SPECIES 301819:CH7NC nidx=null parent=CGZHK]
Melaphe thracicus
 - Melaphe thracicus (Verhoeff, 1926) [SYNONYM SPECIES 300004:C3YYX nidx=null parent=6R8VQ]
 + Melaphe thracicus (Verhoeff, 1926) [SYNONYM SPECIES 301819:CH82F nidx=null parent=6R8VQ]
Melatoma alabamense
 - Melatoma alabamense Reeve, 1861 [SYNONYM SPECIES 300004:3ZDFB nidx=null parent=6L8VK]
 + Melatoma alabamense (I. Lea, 1860) [SYNONYM SPECIES 301819:CH83C nidx=null parent=6KWVJ]
Melinnacheridae
 - Melinnacheridae Lutzen, 1964 [SYNONYM FAMILY 300004:BFDH6 nidx=null parent=7NKX3]
 + Melinnacheridae Bresciani & Lutzen, 1975 [SYNONYM FAMILY 301819:CH85R nidx=null parent=7NKX3]
Meotica (Cryptusa)
 - Meotica (Cryptusa) Mulsant & Rey, 1874 [SYNONYM SUBGENUS 300004:C9FZ4 nidx=null parent=9JB9H]
 + Meotica (Cryptusa) Mulsant & Rey, 1873 [SYNONYM SUBGENUS 301819:CGXKP nidx=null parent=9JB9H]
 + Meotica (Cryptusa) Mulsant & Rey, 1874 [SYNONYM SUBGENUS 301819:CGXKQ nidx=null parent=9JB9H]
 + Meotica (Cryptusa) Mulsant & Rey, 1875 [SYNONYM SUBGENUS 301819:CGXKR nidx=null parent=9JB9H]
Merodon (Merodon) affinis
 - Merodon (Merodon) affinis Gil Collado, 1930 [ACCEPTED SPECIES 300004:BZBP5 nidx=null]
 + Merodon (Merodon) affinis Gil Collado, 1930 [ACCEPTED SPECIES 301819:CH8Q8 nidx=null]
Mesocoelium brieni
 - Mesocoelium brieni Vercammen-Grandjean, 1960 [ACCEPTED SPECIES 300004:86WKL nidx=null]
 + Mesocoelium brieni Vercammen-Grandjean, 1960 [ACCEPTED SPECIES 301819:84B2J nidx=null]
Mesonemoura tianschanica
 - Mesonemoura tianschanica [SYNONYM SPECIES 300004:8NHF5 nidx=null parent=424PW]
 + Mesonemoura tianschanica Zhiltzova, 1971 [SYNONYM SPECIES 301819:CH8ZP nidx=null parent=424PW]
Metapa pretoriae
 - Metapa pretoriae [SYNONYM SPECIES 300004:BT5XS nidx=null parent=92JG]
 + Metapa pretoriae (Miller, 1932) [SYNONYM SPECIES 301819:42BL8 nidx=null parent=92JG]
Metopolophium (Metopolophium)
 - Metopolophium (Metopolophium) Mordvilko, 1914 [ACCEPTED SUBGENUS 300004:C8RKB nidx=null]
 + Metopolophium (Metopolophium) Mordvilko, 1914 [ACCEPTED SUBGENUS 301819:CGSV8 nidx=null]
Miamyia (Miamyia) pintoi
 - Miamyia (Miamyia) pintoi Lima, 1930 [SYNONYM SPECIES 300004:89FMK nidx=null parent=8FMS9]
 + Miamyia (Miamyia) pintoi Lima, 1930 [SYNONYM SPECIES 301819:42LGN nidx=null parent=8FMS9]
Micrarionta guadalupiana
 - Micrarionta guadalupiana (Pilsbry & Vanatta, 1898) [ACCEPTED SPECIES 300004:B862T nidx=null]
 + Micrarionta guadalupiana (Dall, 1898) [ACCEPTED SPECIES 301819:42QPH nidx=null]
Microcycas
 - Microcycas [ACCEPTED GENUS 300004:CDNKR nidx=null]
 + Microcycas (Miq.) A.DC. [ACCEPTED GENUS 301819:CH8BF nidx=null]
Micropalpus clausus
 - Micropalpus clausus Rondani, 1868 [SYNONYM SPECIES 300004:89G5Z nidx=null parent=C2RFJ]
 + Micropalpus clausus Rondani, 1868 [SYNONYM SPECIES 301819:4328R nidx=null parent=C2RFJ]
Microthoracaphis sutepensis
 - Microthoracaphis sutepensis [SYNONYM SPECIES 300004:8QWPP nidx=null parent=6S9FT]
 + Microthoracaphis sutepensis (Takahashi, 1941) [SYNONYM SPECIES 301819:CH8TQ nidx=null parent=CH9HG]
Modiola denysiana
 - Modiola denysiana (A. d'Orbigny, 1844) [SYNONYM SPECIES 300004:B8T3J nidx=null parent=B8SY2]
 + Modiola denysiana [SYNONYM SPECIES 301819:CH9R8 nidx=null parent=B8SY2]
Modiolus (Brachydontes) denysianus
 - Modiolus (Brachydontes) denysianus (A. d'Orbigny, 1844) [SYNONYM SPECIES 300004:B8TB7 nidx=null parent=B8SY2]
 + Modiolus (Brachydontes) denysianus [SYNONYM SPECIES 301819:CH9SX nidx=null parent=B8SY2]
Mogannia chinensis
 - Mogannia chinensis Stål, 1865 [AMBIGUOUS_SYNONYM SPECIES 300004:8J9DM nidx=null parent=8JJNM]
 + Mogannia chinensis Stål, 1865 [AMBIGUOUS_SYNONYM SPECIES 301819:6RMLJ nidx=null parent=8JJNM]
Mogannia kikowensis
 - Mogannia kikowensis Ôuchi, 1938 [SYNONYM SPECIES 300004:8J9F4 nidx=null parent=8JJNM]
 + Mogannia kikowensis Ôuchi, 1938 [SYNONYM SPECIES 301819:6RMN2 nidx=null parent=8JJNM]
Molobrus fuliginosus
 - Molobrus fuliginosus Fitch, 1856 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X5X nidx=null]
 + Molobrus fuliginosus Fitch, 1856 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSBK nidx=null]
Mononchus (Cobbonchus)
 - Mononchus (Cobbonchus) Andrássy, 1978 [ACCEPTED SUBGENUS 300004:BF555 nidx=null]
 + Mononchus (Cobbonchus) Andrássy, 1958 [SYNONYM SUBGENUS 301819:CGWL7 nidx=null parent=87F43]
Mulsantia blanda
 - Mulsantia blanda Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X6X nidx=null]
 + Mulsantia blanda Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSH6 nidx=null]
Mulsantia spreta
 - Mulsantia spreta Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X6Z nidx=null]
 + Mulsantia spreta Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSHV nidx=null]
Murex varians
 - Murex varians A. d'Orbigny, 1841 [SYNONYM SPECIES 300004:44MLC nidx=null parent=7D8XM]
 + Murex varians A. d'Orbigny, 1839 [SYNONYM SPECIES 301819:CH8DK nidx=null parent=7D8XM]
Musca abrupta
 - Musca abrupta Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X73 nidx=null]
 + Musca abrupta Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSHY nidx=null]
Musca aestuans
 - Musca aestuans Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X75 nidx=null]
 + Musca aestuans Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSJH nidx=null]
Musca comio
 - Musca comio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X7J nidx=null]
 + Musca comio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSLZ nidx=null]
Musca conica
 - Musca conica Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X7L nidx=null]
 + Musca conica Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH7H nidx=null]
Musca convenio
 - Musca convenio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X7N nidx=null]
 + Musca convenio Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSMD nidx=null]
Musca decore
 - Musca decore Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X7P nidx=null]
 + Musca decore Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSMM nidx=null]
Musca doclea
 - Musca doclea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X7S nidx=null]
 + Musca doclea Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSMZ nidx=null]
Musca erythrocephala
 - Musca erythrocephala Fabricius, 1787 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X7X nidx=null]
 + Musca erythrocephala Fabricius, 1787 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH8D nidx=null]
Musca fimetorum
 - Musca fimetorum Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X82 nidx=null]
 + Musca fimetorum Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSNG nidx=null]
Musca flavipalpis
 - Musca flavipalpis Meigen, 1838 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X83 nidx=null]
 + Musca flavipalpis Meigen, 1838 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSNL nidx=null]
Musca gibbosa
 - Musca gibbosa Thunberg, 1789 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X86 nidx=null]
 + Musca gibbosa Thunberg, 1789 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH8W nidx=null]
Musca grisea
 - Musca grisea Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X87 nidx=null]
 + Musca grisea Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH94 nidx=null]
Musca guttata
 - Musca guttata Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X88 nidx=null]
 + Musca guttata Geoffroy, 1785 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSPB nidx=null]
Musca hebes
 - Musca hebes Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X8B nidx=null]
 + Musca hebes Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9KH98 nidx=null]
Musca helenii
 - Musca helenii Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X8C nidx=null]
 + Musca helenii Villers, 1789 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSPK nidx=null]
Musca lincensis
 - Musca lincensis Schrank, 1776 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X8M nidx=null]
 + Musca lincensis Schrank, 1776 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSQY nidx=null]
Musca metallina
 - Musca metallina Gravenhorst, 1807 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X8X nidx=null]
 + Musca metallina Gravenhorst, 1807 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSRP nidx=null]
Musca nigripilis
 - Musca nigripilis Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X95 nidx=null]
 + Musca nigripilis Gmelin, 1790 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSSF nidx=null]
Musca prodromaria
 - Musca prodromaria Panzer, 1804 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X97 nidx=null]
 + Musca prodromaria Panzer, 1804 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSTX nidx=null]
Musca prolabor
 - Musca prolabor Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X98 nidx=null]
 + Musca prolabor Harris, 1780 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSTY nidx=null]
Musca sacalis
 - Musca sacalis Bjerkander, 1783 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X99 nidx=null]
 + Musca sacalis Bjerkander, 1783 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSWK nidx=null]
Musca terrestris
 - Musca terrestris Linnaeus, 1767 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X9B nidx=null]
 + Musca terrestris Linnaeus, 1767 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JSY2 nidx=null]
Musculus denysianus
 - Musculus denysianus (A. d'Orbigny, 1844) [SYNONYM SPECIES 300004:B8SXZ nidx=null parent=B8SY2]
 + Musculus denysianus [SYNONYM SPECIES 301819:CH8HX nidx=null parent=B8SY2]
Mycetophila borealis
 - Mycetophila borealis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3X9F nidx=null]
 + Mycetophila borealis Walker, 1848 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT38 nidx=null]
Myctophum alatus
 - Myctophum alatus () non Goode & Bean, 1896 [MISAPPLIED SPECIES 300004:CG523 nidx=null parent=3S2MG]
 + Myctophum alatus () [MISAPPLIED SPECIES 301819:CH8YB nidx=null parent=3S2MG]
 + Myctophum alatus () [MISAPPLIED SPECIES 301819:CH8YC nidx=null parent=3S2Q6]
Mydaea (Mydaria) rufisquama
 - Mydaea (Mydaria) rufisquama Schnabl, 1915 [SYNONYM SPECIES 300004:88QND nidx=null parent=7BXVP]
 + Mydaea (Mydaria) rufisquama Schnabl, 1915 [SYNONYM SPECIES 301819:4524P nidx=null parent=8FFFR]
Myiolepta luhei
 - †Myiolepta luhei Cockerell, 1910 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XDW nidx=null]
 + Myiolepta luhei Cockerell, 1910 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT5Q nidx=null]
Myiophasia solitaria
 - Myiophasia solitaria Aldrich, 1934 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XDY nidx=null]
 + Myiophasia solitaria Aldrich, 1934 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT66 nidx=null]
Myophora arvicola
 - Myophora arvicola Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XF9 nidx=null]
 + Myophora arvicola Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT72 nidx=null]
Myophora rapida
 - Myophora rapida Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XFQ nidx=null]
 + Myophora rapida Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT7Z nidx=null]
Myothyria degeerioides
 - Myothyria degeerioides Wulp, 1890 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XGC nidx=null]
 + Myothyria degeerioides Wulp, 1890 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT8F nidx=null]
Mytilus denysianus
 - Mytilus denysianus A. d'Orbigny, 1844 [SYNONYM SPECIES 300004:BHXTQ nidx=null parent=B8SY2]
 + Mytilus denysianus [SYNONYM SPECIES 301819:CH9L2 nidx=null parent=B8SY2]
Myxobolus homeosporus
 - Myxobolus homeosporus (Baker, 2009) [ACCEPTED SPECIES 300004:BTYDK nidx=null]
 + Myxobolus homeosporus (Baker, 1963) [ACCEPTED SPECIES 301819:CH9NH nidx=null]
Myxobolus opiensis
 - Myxobolus opiensis Chen & Ma, 1998 [SYNONYM SPECIES 300004:CGMJG nidx=null parent=CG5VH]
 + Myxobolus opiensis Ma & Zhao, 1993 [ACCEPTED SPECIES 301819:CHLLJ nidx=null]
Myxosoma homeospora
 - Myxosoma homeospora Baker, 2009 [SYNONYM SPECIES 300004:BTYVG nidx=null parent=BTYDK]
 + Myxosoma homeospora Baker, 1963 [SYNONYM SPECIES 301819:CH9QN nidx=null parent=CH9NH]
Myzocallis subulmifolii
 - Myzocallis subulmifolii [SYNONYM SPECIES 300004:8R3BL nidx=null parent=573DQ]
 + Myzocallis subulmifolii Miller, 1936 [SYNONYM SPECIES 301819:CH9SZ nidx=null parent=573DQ]
Naesiotus habeli
 - Naesiotus habeli (Stearns, 1892) [ACCEPTED SPECIES 300004:CG63L nidx=null]
 + Naesiotus habeli (Dall, 1892) [ACCEPTED SPECIES 301819:CH9WL nidx=null]
Nannodiella elatior
 - Nannodiella elatior (A. d'Orbigny, 1842) [ACCEPTED SPECIES 300004:9CW37 nidx=null]
 + Nannodiella elatior (A. d'Orbigny, 1847) [ACCEPTED SPECIES 301819:744JY nidx=null]
Neascus hoffmani
 - Neascus hoffmani Pandey, 1973 [ACCEPTED SPECIES 300004:B2QSY nidx=null]
 + Neascus hoffmani Pandey, 1975 [ACCEPTED SPECIES 301819:CH8BX nidx=null]
Neascus komiyai
 - Neascus komiyai Pandey, 1973 [ACCEPTED SPECIES 300004:B2QWN nidx=null]
 + Neascus komiyai Pandey, 1975 [ACCEPTED SPECIES 301819:CH8BY nidx=null]
Necrophorus anglicus
 - Necrophorus anglicus Stephens, 1830 [SYNONYM SPECIES 300004:9MWGC nidx=null parent=9KJ39]
 + Necrophorus anglicus Stephens, 1829 [SYNONYM SPECIES 301819:CH8FJ nidx=null parent=9KJ39]
 + Necrophorus anglicus Stephens, 1830 [SYNONYM SPECIES 301819:CH8FK nidx=null parent=9KJ39]
Nemocardium exasperatum
 - Nemocardium exasperatum [SYNONYM SPECIES 300004:BH9F7 nidx=null parent=6K253]
 + Nemocardium exasperatum (G. B. Sowerby II, 1839) [SYNONYM SPECIES 301819:CH8NT nidx=null parent=6K253]
Nemotelus (Nemotelus) caucasicus
 - Nemotelus (Nemotelus) caucasicus Nartshuk, 1969 [ACCEPTED SPECIES 300004:CDP8T nidx=null]
 + Nemotelus (Nemotelus) caucasicus Nartshuk, 1969 [ACCEPTED SPECIES 301819:CH8QQ nidx=null]
Nemotelus (Nemotelus) fraternus
 - Nemotelus (Nemotelus) fraternus Loew, 1846 [ACCEPTED SPECIES 300004:CDP8V nidx=null]
 + Nemotelus (Nemotelus) fraternus Loew, 1846 [ACCEPTED SPECIES 301819:CH8QR nidx=null]
Nemotelus (Nemotelus) maryinellus
 - Nemotelus (Nemotelus) maryinellus Schiner, 1855 [ACCEPTED SPECIES 300004:C7WXP nidx=null]
 + Nemotelus (Nemotelus) maryinellus Schiner, 1855 [ACCEPTED SPECIES 301819:CH8QT nidx=null]
Nemotelus (Nemotelus) punctirostris
 - Nemotelus (Nemotelus) punctirostris Lindner, 1974 [ACCEPTED SPECIES 300004:C7WXQ nidx=null]
 + Nemotelus (Nemotelus) punctirostris Lindner, 1974 [ACCEPTED SPECIES 301819:CH8QW nidx=null]
Nemotelus (Nemotelus) zelleri
 - Nemotelus (Nemotelus) zelleri Pleske, 1937 [ACCEPTED SPECIES 300004:CG4RP nidx=null]
 + Nemotelus (Nemotelus) zelleri Pleske, 1937 [ACCEPTED SPECIES 301819:CH8QX nidx=null]
Nemotelus rufus
 - Nemotelus rufus De Geer, 1776 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XGT nidx=null]
 + Nemotelus rufus De Geer, 1776 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT97 nidx=null]
Nemotelus sylvestris
 - Nemotelus sylvestris Müller, 1776 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XGZ nidx=null]
 + Nemotelus sylvestris Müller, 1776 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JT9F nidx=null]
Nemoura arstica
 - Nemoura arstica [SYNONYM SPECIES 300004:8NH6X nidx=null parent=469NC]
 + Nemoura arstica Esben-Petersen, 1910 [SYNONYM SPECIES 301819:CH8R4 nidx=null parent=469NC]
Nemoura pallidura
 - Nemoura pallidura [SYNONYM SPECIES 300004:8NGRB nidx=null parent=54HCQ]
 + Nemoura pallidura (Banks, 1902) [SYNONYM SPECIES 301819:CH8R9 nidx=null parent=54HCQ]
Nemura
 - Nemura [SYNONYM GENUS 300004:8N7D2 nidx=null parent=8MQT5]
 + Nemura Latreille, 1796 [SYNONYM GENUS 301819:CH8RB nidx=null parent=8MQT5]
Nemura (Nemura)
 - Nemura (Nemura) [SYNONYM SUBGENUS 300004:8NGSK nidx=null parent=8MQT5]
 + Nemura (Nemura) Latreille, 1796 [SYNONYM SUBGENUS 301819:CH8RC nidx=null parent=8MQT5]
Neocnemodon
 - Neocnemodon Goffe, 1944 [ACCEPTED GENUS 300004:BYJV4 nidx=null]
 + Neocnemodon [ACCEPTED GENUS 301819:CH8XD nidx=null]
Neodiplostomum brachyurum
 - Neodiplostomum brachyurum (Nicoll, 1914) Dubois, 1937 [ACCEPTED SPECIES 300004:B6C6Z nidx=null]
 + Neodiplostomum brachyurum (Nicoll, 1914) Semenov, 1927 [ACCEPTED SPECIES 301819:CH8YW nidx=null]
Neodiplostomum cochleare
 - Neodiplostomum cochleare (Krause, 1914) La Rue, 1914 [ACCEPTED SPECIES 300004:B2LNT nidx=null]
 + Neodiplostomum cochleare (Krause, 1914) La Rue, 1926 [ACCEPTED SPECIES 301819:CH8Z4 nidx=null]
Neodiplostomum magnitesticulatum
 - Neodiplostomum magnitesticulatum (Bisseru, 1957) Dubois, 1968 [ACCEPTED SPECIES 300004:9J8LL nidx=null]
 + Neodiplostomum magnitesticulatum (Bisseru, 1957) Dubois, 1962 [ACCEPTED SPECIES 301819:CH8ZC nidx=null]
Neomisticius
 - Neomisticius [ACCEPTED GENUS 300004:99V4L nidx=null]
 + Neomisticius Siddiqi, 1986 [ACCEPTED GENUS 301819:CH95B nidx=null]
Neoperla (Formosita) furcomaculata
 - Neoperla (Formosita) furcomaculata Kong & Li, 2016 [ACCEPTED SPECIES 300004:46PM7 nidx=null]
 + Neoperla (Formosita) furcomaculata Kong & Li, 2014 [ACCEPTED SPECIES 301819:CH96Y nidx=null]
Neoperla cavalerieri
 - Neoperla cavalerieri [SYNONYM SPECIES 300004:8NH6J nidx=null parent=46PKF]
 + Neoperla cavalerieri (Navás, 1922) [SYNONYM SPECIES 301819:CH973 nidx=null parent=46PKF]
Neoperla nipponnensis
 - Neoperla nipponnensis [SYNONYM SPECIES 300004:8N39Q nidx=null parent=46PQQ]
 + Neoperla nipponnensis McLachlan, 1875 [SYNONYM SPECIES 301819:CH96Z nidx=null parent=46PQQ]
Neoperla plagiata
 - Neoperla plagiata [SYNONYM SPECIES 300004:8NGZF nidx=null parent=8NHHK]
 + Neoperla plagiata (Navás, 1926) [SYNONYM SPECIES 301819:CH97B nidx=null parent=8NHHK]
Neoperla sjöstedti
 - Neoperla sjöstedti Newman, 1839 [SYNONYM SPECIES 300004:8N39V nidx=null parent=46PT8]
 + Neoperla sjöstedti Klapálek, 1909 [SYNONYM SPECIES 301819:CH972 nidx=null parent=46PT8]
Neophasganophora multispina
 - Neophasganophora multispina [SYNONYM SPECIES 300004:8NGRR nidx=null parent=664VX]
 + Neophasganophora multispina (Wu, 1938) [SYNONYM SPECIES 301819:CH97V nidx=null parent=664VX]
Neosymydobius quercihabitus
 - Neosymydobius quercihabitus [ACCEPTED SPECIES 300004:6RY23 nidx=null]
 + Neosymydobius quercihabitus Miller, 1936 [ACCEPTED SPECIES 301819:CH9G5 nidx=null]
Neothoracaphis sutepensis
 - Neothoracaphis sutepensis [ACCEPTED SPECIES 300004:6S9FT nidx=null]
 + Neothoracaphis sutepensis (Takahashi, 1941) [ACCEPTED SPECIES 301819:CH9HG nidx=null]
Nereis (Lycoris) gisserana
 - Nereis (Lycoris) gisserana Horst, 1924 [SYNONYM SPECIES 300004:CDS2N nidx=null parent=45Y4F]
 + Nereis (Lycoris) gisserana Horst, 1924 [SYNONYM SPECIES 301819:CH9ZW nidx=null parent=45Y4F]
Nipponaphis (Pseudonipponaphis) siamensis
 - Nipponaphis (Pseudonipponaphis) siamensis [SYNONYM SPECIES 300004:8QXPN nidx=null parent=4VBKH]
 + Nipponaphis (Pseudonipponaphis) siamensis (Takahashi, 1941) [SYNONYM SPECIES 301819:CH8G7 nidx=null parent=CHGNY]
Noctua degener
 - Noctua degener [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 300004:BRCCN nidx=null parent=92YVY]
 + Noctua degener [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 301819:97NQW nidx=null parent=92YVY]
Noctua radicea
 - Noctua radicea [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 300004:BRCF7 nidx=null parent=92TR9]
 + Noctua radicea [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 301819:97NWJ nidx=null parent=92TR9]
Noctua spoliatricula
 - Noctua spoliatricula [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 300004:BRCFP nidx=null parent=92YVY]
 + Noctua spoliatricula [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 301819:97NXM nidx=null parent=92YVY]
Nogiperla japonica
 - Nogiperla japonica [AMBIGUOUS_SYNONYM SPECIES 300004:9HG76 nidx=null parent=5CSB3]
 + Nogiperla japonica (Uéno, 1929) [SYNONYM SPECIES 301819:CH8RV nidx=null parent=5CSB3]
Notiphila peregrina
 - Notiphila peregrina Wiedemann, 1830 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XKK nidx=null]
 + Notiphila peregrina Wiedemann, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9V8GB nidx=null]
Nototelmatoscopus (Oscoreopus)
 - Nototelmatoscopus (Oscoreopus) [ACCEPTED SUBGENUS 300004:CDPSQ nidx=null]
 + Nototelmatoscopus (Oscoreopus) Ježek, 1989 [ACCEPTED SUBGENUS 301819:CH93F nidx=null]
Ochthopetina cavalerieri
 - Ochthopetina cavalerieri [SYNONYM SPECIES 300004:8NGJS nidx=null parent=46PKF]
 + Ochthopetina cavalerieri (Navás, 1922) [SYNONYM SPECIES 301819:CHB97 nidx=null parent=46PKF]
Ochtiphila albiceps
 - Ochtiphila albiceps Meigen, 1830 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XLH nidx=null]
 + Ochtiphila albiceps Meigen, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9V8GW nidx=null]
Oediceros aequimanus
 - Oediceros aequimanus Kossmann, 1880 [SYNONYM SPECIES 300004:7XKHT nidx=null parent=4F2PJ]
 + Oediceros aequimanus Kossmann, 1880 [SYNONYM SPECIES 301819:48VQ6 nidx=null parent=4F2PJ]
Oeme (Oeme) strangulata
 - Oeme (Oeme) strangulata [SYNONYM SPECIES 300004:BRWGC nidx=null parent=48X25]
 + Oeme (Oeme) strangulata [SYNONYM SPECIES 301819:CHBT3 nidx=null parent=48X25]
Oligota (Logiota)
 - Oligota (Logiota) Mulsant & Rey, 1874 [SYNONYM SUBGENUS 300004:CB7FK nidx=null parent=9JBCT]
 + Oligota (Logiota) Mulsant & Rey, 1873 [SYNONYM SUBGENUS 301819:CH72C nidx=null parent=9JBCT]
 + Oligota (Logiota) Mulsant & Rey, 1874 [SYNONYM SUBGENUS 301819:CH72D nidx=null parent=9JBCT]
Omasaria funiculis
 - †Omasaria funiculis (Wolleman, 1902) [ACCEPTED SPECIES 300004:74K4G nidx=null]
 + Omasaria funiculis (Wollemann, 1899) [ACCEPTED SPECIES 301819:CH8KF nidx=null]
Ommastrephes giganteus
 - Ommastrephes giganteus A. d'Orbigny, 1839–1842 [SYNONYM SPECIES 300004:CBGWK nidx=null parent=C9P5F]
 + Ommastrephes giganteus A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:CH8L7 nidx=null parent=C9P5F]
Oncometopia (Oncometopia) obtusa funebris
 - Oncometopia (Oncometopia) obtusa funebris (Signoret, 1854) [SYNONYM SUBSPECIES 300004:CDPGQ nidx=null parent=49HWS]
 + Oncometopia (Oncometopia) obtusa funebris (Signoret, 1854) [SYNONYM SUBSPECIES 301819:CH8W9 nidx=null parent=49HWS]
Oncopsis (Oncopsis) juglans
 - Oncopsis (Oncopsis) juglans (Matsumura, 1912) [SYNONYM SPECIES 300004:CG4XK nidx=null parent=49JC4]
 + Oncopsis (Oncopsis) juglans (Matsumura, 1912) [SYNONYM SPECIES 301819:CH8WD nidx=null parent=49JC4]
Oncopsis (Oncopsis) towadensis
 - Oncopsis (Oncopsis) towadensis (Matsumura, 1912) [SYNONYM SPECIES 300004:CBJ54 nidx=null parent=49JC4]
 + Oncopsis (Oncopsis) towadensis (Matsumura, 1912) [SYNONYM SPECIES 301819:CH8WG nidx=null parent=49JC4]
Oncopsis gibbus
 - Oncopsis gibbus Evans, 1942 [SYNONYM SPECIES 300004:C7V3J nidx=null parent=B79TX]
 + Oncopsis gibbus Evans, 1942 [SYNONYM SPECIES 301819:CH8WK nidx=null parent=B79TX]
Oncopsis pullus
 - Oncopsis pullus Evans, 1935 [SYNONYM SPECIES 300004:CG4XR nidx=null parent=57GBD]
 + Oncopsis pullus Evans, 1935 [SYNONYM SPECIES 301819:CH8WM nidx=null parent=57GBD]
Oncopsis scopulus
 - Oncopsis scopulus Evans, 1935 [SYNONYM SPECIES 300004:CG4XS nidx=null parent=8JVYZ]
 + Oncopsis scopulus Evans, 1935 [SYNONYM SPECIES 301819:CH8WN nidx=null parent=8JVYZ]
Onesia gentilis
 - Onesia gentilis Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XNS nidx=null]
 + Onesia gentilis Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTGZ nidx=null]
Onthophagus (Colobonthophagus)
 - Onthophagus (Colobonthophagus) Balthasar, 1935 [ACCEPTED SUBGENUS 300004:63Y4W nidx=null]
 + Onthophagus (Colobonthophagus) Balthasar, 1963 [ACCEPTED SUBGENUS 301819:CGXLC nidx=null]
Onthophagus (Gibbonthophagus)
 - Onthophagus (Gibbonthophagus) Balthasar, 1935 [ACCEPTED SUBGENUS 300004:B6SFD nidx=null]
 + Onthophagus (Gibbonthophagus) Balthasar, 1963 [ACCEPTED SUBGENUS 301819:CH37R nidx=null]
Onthophagus (Phanaeomorphus)
 - Onthophagus (Phanaeomorphus) Balthasar, 1935 [ACCEPTED SUBGENUS 300004:649RW nidx=null]
 + Onthophagus (Phanaeomorphus) Balthasar, 1963 [ACCEPTED SUBGENUS 301819:CH8ZR nidx=null]
Onthophagus (Serrophorus)
 - Onthophagus (Serrophorus) Balthasar, 1935 [ACCEPTED SUBGENUS 300004:B6SMB nidx=null]
 + Onthophagus (Serrophorus) Balthasar, 1963 [ACCEPTED SUBGENUS 301819:CH8ZT nidx=null]
Onthophagus (Strandius)
 - Onthophagus (Strandius) Balthasar, 1935 [ACCEPTED SUBGENUS 300004:63Y3Y nidx=null]
 + Onthophagus (Strandius) Balthasar, 1963 [ACCEPTED SUBGENUS 301819:CH8ZV nidx=null]
Oplatocera (Epioplatocera) oberthuri
 - Oplatocera (Epioplatocera) oberthuri [AMBIGUOUS_SYNONYM SPECIES 300004:CG626 nidx=null parent=6T4C4]
 + Oplatocera (Epioplatocera) oberthuri [AMBIGUOUS_SYNONYM SPECIES 301819:CH9VS nidx=null parent=6T4C4]
Orbitoides subgen. Discocyclina
 - †Orbitoides subgen. Discocyclina Gümbel, 1870 [PROVISIONALLY_ACCEPTED SUBGENUS 300004:CFT5R nidx=null]
 + Orbitoides subgen. Discocyclina Gümbel, 1870 [PROVISIONALLY_ACCEPTED SUBGENUS 301819:CH2B3 nidx=null]
Ortalis semivitta
 - Ortalis semivitta Walker, 1865 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XQ4 nidx=null]
 + Ortalis semivitta Walker, 1865 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTKB nidx=null]
Orthosia (Orthosia) collinita
 - Orthosia (Orthosia) collinita Esper [SYNONYM SPECIES 300004:BRCKJ nidx=null parent=9389N]
 + Orthosia (Orthosia) collinita Esper [SYNONYM SPECIES 301819:97S87 nidx=null parent=9389N]
Oscinella (Oscinella) agrostis
 - Oscinella (Oscinella) agrostis Nartshuk, 1955 [ACCEPTED SPECIES 300004:CBMGB nidx=null]
 + Oscinella (Oscinella) agrostis Nartshuk, 1955 [ACCEPTED SPECIES 301819:CH934 nidx=null]
Otiorhynchus speiseri
 - Otiorhynchus speiseri Apfelbeck, 1895 [SYNONYM SPECIES 300004:CDQ5D nidx=null parent=373HR]
 + Otiorhynchus speiseri Apfelbeck, 1894 [SYNONYM SPECIES 301819:CH98T nidx=null parent=373HR]
 + Otiorhynchus speiseri Apfelbeck, 1895 [SYNONYM SPECIES 301819:CH98V nidx=null parent=373HR]
Otiorhynchus vlasuljensis
 - Otiorhynchus vlasuljensis Apfelbeck, 1895 [SYNONYM SPECIES 300004:CBNRR nidx=null parent=6DBV9]
 + Otiorhynchus vlasuljensis Apfelbeck, 1894 [SYNONYM SPECIES 301819:CH994 nidx=null parent=6DBV9]
 + Otiorhynchus vlasuljensis Apfelbeck, 1895 [SYNONYM SPECIES 301819:CH995 nidx=null parent=6DBV9]
Otus kennicottii
 - Otus kennicottii (D. G. Elliot, 1867) [SYNONYM SPECIES 300004:CDQD8 nidx=null parent=737WZ]
 + Otus kennicottii (D. G. Elliot, 1867) [SYNONYM SPECIES 301819:CH9CG nidx=null parent=737WZ]
Ouralia
 - Ouralia Mulsant & Rey, 1874 [SYNONYM GENUS 300004:CBP52 nidx=null parent=9JR2Q]
 + Ouralia Mulsant & Rey, 1874 [SYNONYM GENUS 301819:CH9CQ nidx=null parent=9JR2Q]
 + Ouralia Mulsant & Rey, 1873 [SYNONYM GENUS 301819:CH9CR nidx=null parent=9JR2Q]
 + Ouralia Mulsant & Rey, 1875 [SYNONYM GENUS 301819:CH9CS nidx=null parent=9JR2Q]
Palaeocolpodia eocenica
 - †Palaeocolpodia eocenica Meunier, 1904 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XVF nidx=null]
 + Palaeocolpodia eocenica Meunier, 1904 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTQ7 nidx=null]
Palaeopipiza xenos
 - †Palaeopipiza xenos Meunier, 1902 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XVG nidx=null]
 + Palaeopipiza xenos Meunier, 1902 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTQD nidx=null]
Palaeosphegina tristis
 - †Palaeosphegina tristis Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XVH nidx=null]
 + Palaeosphegina tristis Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTQR nidx=null]
Pamirina evoluta
 - †Pamirina evoluta Rauzer-Chernousova, 1988 [PROVISIONALLY_ACCEPTED SPECIES 300004:836J7 nidx=null]
 + Pamirina evoluta Sheng & Sun, 1975 [SYNONYM SPECIES 301819:CHC29 nidx=null parent=836J8]
Panagrolaimus coronatus
 - Panagrolaimus coronatus Fuchs, 1930 [SYNONYM SPECIES 300004:9C9PH nidx=null parent=88V5R]
 + Panagrolaimus coronatus (Fuchs, 1930) Thorne, 1939 [SYNONYM SPECIES 301819:CHC3M nidx=null parent=88V5R]
Pangonia leucomelana
 - Pangonia leucomelana Séguy, 1933 [SYNONYM SPECIES 300004:89MQW nidx=null parent=8D9TL]
 + Pangonia leucomelana Séguy, 1933 [SYNONYM SPECIES 301819:4CCJZ nidx=null parent=8D9TL]
Pangonia senegalensis
 - Pangonia senegalensis Macquart, 1834 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XVW nidx=null]
 + Pangonia senegalensis Macquart, 1834 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JTTY nidx=null]
Papilio iarbus
 - Papilio iarbus Fabricius, 1787 [SYNONYM SPECIES 300004:CDVNG nidx=null parent=BZM88]
 + Papilio iarbus Fabricius, 1787 [SYNONYM SPECIES 301819:CHCHT nidx=null parent=BZM88]
Paracypria tenuis
 - Paracypria tenuis (Sars, 1910) [ACCEPTED SPECIES 300004:4CSGZ nidx=null]
 + Paracypria tenuis (Sars, 1905) [ACCEPTED SPECIES 301819:CHB6L nidx=null]
Paragnetina transversa
 - Paragnetina transversa [SYNONYM SPECIES 300004:8N3LR nidx=null parent=8NGRN]
 + Paragnetina transversa (Wu, 1962) [SYNONYM SPECIES 301819:4CVVB nidx=null parent=8NGRN]
Paragus (Pandasyopthalmus) chalybeatus
 - Paragus (Pandasyopthalmus) chalybeatus Hull, 1964 [ACCEPTED SPECIES 300004:92VKY nidx=null]
 + Paragus (Pandasyopthalmus) chalybeatus Hull, 1964 [ACCEPTED SPECIES 301819:4CWHT nidx=null]
Paraonis (Paraonides) lyra capensis
 - Paraonis (Paraonides) lyra capensis Day, 1955 [SYNONYM SUBSPECIES 300004:CG6Y4 nidx=null parent=BNSGP]
 + Paraonis (Paraonides) lyra capensis Day, 1955 [SYNONYM SUBSPECIES 301819:CHBJH nidx=null parent=BNSGP]
Parastenhelia forficula littoralis
 - Parastenhelia forficula littoralis (Claus, 1883) [ACCEPTED SUBSPECIES 300004:7HPSV nidx=null]
 + Parastenhelia forficula littoralis Sars, G.O., 1911 [ACCEPTED SUBSPECIES 301819:CHBZ2 nidx=null]
Parastentheliidae
 - Parastentheliidae Lang, 1936 [SYNONYM FAMILY 300004:BG479 nidx=null parent=7NKC2]
 + Parastentheliidae Lang, 1948 [SYNONYM FAMILY 301819:CHBZ7 nidx=null parent=7NKC2]
Parathoracaphis elongata
 - Parathoracaphis elongata [ACCEPTED SPECIES 300004:4DFMV nidx=null]
 + Parathoracaphis elongata (Takahashi, 1941) [ACCEPTED SPECIES 301819:CHC49 nidx=null]
Paratrichosiphum flavum
 - Paratrichosiphum flavum [SYNONYM SPECIES 300004:C7Y9T nidx=null parent=6HKSG]
 + Paratrichosiphum flavum Takahashi, 1941 [SYNONYM SPECIES 301819:CHC6C nidx=null parent=CH35T]
Parornix szoecsi
 - Parornix szoecsi auct. [MISAPPLIED SPECIES 300004:CDVRD nidx=null parent=4DSCH]
 + Parornix szoecsi [MISAPPLIED SPECIES 301819:CHCKH nidx=null parent=4DSCH]
Pecten tehuelchus
 - Pecten tehuelchus A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:6TVKX nidx=null parent=64YTH]
 + Pecten tehuelchus A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CHD3N nidx=null parent=CGPCR]
Pegomya laminata
 - Pegomya laminata Ringdahl, 1951 [ACCEPTED SPECIES 300004:92VST nidx=null]
 + Pegomya laminata Ringdahl, 1951 [ACCEPTED SPECIES 301819:75XZC nidx=null]
Pelophryne scalptus
 - Pelophryne scalptus (Liu & Hu in Liu, Hu, Fei & Huang, 1973) [SYNONYM SPECIES 300004:CG6KF nidx=null parent=4D7F2]
 + Pelophryne scalptus (Liu & Hu in Liu, Hu, Fei & Huang, 1973) [SYNONYM SPECIES 301819:CHB8N nidx=null parent=4D7F2]
Peltoperlopsis formosana
 - Peltoperlopsis formosana [SYNONYM SPECIES 300004:8N3PL nidx=null parent=ZYGD]
 + Peltoperlopsis formosana (Klapálek, 1913) [SYNONYM SPECIES 301819:76FXK nidx=null parent=ZYGD]
Pentethria
 - Pentethria Meigen, 1803 [SYNONYM GENUS 300004:C3ZRB nidx=null parent=BYM3Y]
 + Pentethria [SYNONYM GENUS 301819:CHBHN nidx=null parent=77F]
Penthotria
 - Penthotria Meigen, 1803 [SYNONYM GENUS 300004:C425J nidx=null parent=BYM3Y]
 + Penthotria [SYNONYM GENUS 301819:CHBJB nidx=null parent=77F]
Peristichia pedroana
 - Peristichia pedroana (Dall & Bartsch, 1909) [ACCEPTED SPECIES 300004:4F4ZV nidx=null]
 + Peristichia pedroana (Dall & Bartsch, 1903) [ACCEPTED SPECIES 301819:CHC6F nidx=null]
Perla coreana
 - Perla coreana [SYNONYM SPECIES 300004:8N3QW nidx=null parent=4BMSS]
 + Perla coreana (Okamoto, 1921) [SYNONYM SPECIES 301819:4F697 nidx=null parent=4BMSS]
Perla tripunctata
 - Perla tripunctata [SYNONYM SPECIES 300004:8NH9C nidx=null parent=69XXH]
 + Perla tripunctata (Scopoli, 1763) [SYNONYM SPECIES 301819:CHC75 nidx=null parent=69XXH]
Pestalichomolgus
 - Pestalichomolgus Wilson C.B., 1924 [SYNONYM GENUS 300004:BGMXL nidx=null parent=7P5S2]
 + Pestalichomolgus Wilson C.B., 1932 [SYNONYM GENUS 301819:CHCCF nidx=null parent=7P5S2]
Petalodiplostomum
 - Petalodiplostomum Dubois, 1960 [SYNONYM GENUS 300004:BGMXR nidx=null parent=9HMMZ]
 + Petalodiplostomum Dubois, 1936 [SYNONYM GENUS 301819:CHCDC nidx=null parent=9HMMZ]
Pethetria
 - Pethetria Meigen, 1803 [SYNONYM GENUS 300004:C4424 nidx=null parent=BYM3Y]
 + Pethetria [SYNONYM GENUS 301819:CHCH2 nidx=null parent=77F]
Phacoides (Epilucina)
 - Phacoides (Epilucina) Dall, 1901 [SYNONYM SUBGENUS 300004:CFMR5 nidx=null parent=7NYX6]
 + Phacoides (Epilucina) Dall, 1901 [SYNONYM SUBGENUS 301819:CGX22 nidx=null parent=7NYX6]
Phaenocladius karicus
 - Phaenocladius karicus Chernovsky, 1944 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3XYB nidx=null]
 + Phaenocladius karicus Chernovsky, 1944 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVF9 nidx=null]
Phalaena (Noctua) fagi
 - Phalaena (Noctua) fagi Linnaeus, 1758 [SYNONYM SPECIES 300004:94CYF nidx=null parent=93PHG]
 + Phalaena (Noctua) fagi Linnaeus, 1758 [SYNONYM SPECIES 301819:BRCX7 nidx=null parent=93PHG]
Phalaena (Pyralis) sulphuralis
 - Phalaena (Pyralis) sulphuralis Linnaeus, 1767 [SYNONYM SPECIES 300004:BRCZ8 nidx=null parent=93PQG]
 + Phalaena (Pyralis) sulphuralis Linnaeus, 1767 [SYNONYM SPECIES 301819:97YMT nidx=null parent=93PQG]
Phalaena (Tinea) goedartella
 - Phalaena (Tinea) goedartella Linnaeus, 1758 [SYNONYM SPECIES 300004:94CZG nidx=null parent=BFLFD]
 + Phalaena (Tinea) goedartella Linnaeus, 1758 [SYNONYM SPECIES 301819:BRCXH nidx=null parent=BFLFD]
Phanaeus lautus
 - Phanaeus lautus MacLeay, 1819 [SYNONYM SPECIES 300004:7Y4LS nidx=null parent=7ZQ4T]
 + Phanaeus lautus MacLeay, 1819 [SYNONYM SPECIES 301819:4FSMT nidx=null parent=7ZQ4T]
Philinta flava
 - Philinta flava Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3Y23 nidx=null]
 + Philinta flava Robineau-Desvoidy, 1830 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVGQ nidx=null]
Pholas crucifera
 - Pholas crucifera auct. [SYNONYM SPECIES 300004:CBTPK nidx=null parent=33N9Q]
 + Pholas crucifera [SYNONYM SPECIES 301819:4GKVZ nidx=null parent=33N9Q]
Phora gigantea
 - Phora gigantea Enderlein, 1912 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3Y2M nidx=null]
 + Phora gigantea Enderlein, 1912 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVHG nidx=null]
Phyllonorycter evgenia
 - Phyllonorycter evgenia auct. [MISAPPLIED SPECIES 300004:CDW7T nidx=null parent=77G69]
 + Phyllonorycter evgenia [MISAPPLIED SPECIES 301819:CHCRC nidx=null parent=77G69]
Phyllophora
 - Phyllophora Milne Edwards H., 1840 [SYNONYM GENUS 300004:BDXWG nidx=null parent=7PRTT]
 + Phyllophora [SYNONYM GENUS 301819:63MN9 nidx=null parent=8NXBM]
 + Phyllophora Milne Edwards, 1840 [SYNONYM GENUS 301819:CHCRS nidx=null parent=7PRTT]
 + Phyllophora [SYNONYM GENUS 301819:CHCRT nidx=null parent=8NXBM]
Pilocamptus kamerunensis kamerunensis
 - Pilocamptus kamerunensis kamerunensis Kiefer, 1928 [ACCEPTED SUBSPECIES 300004:B8KZG nidx=null]
 + Pilocamptus kamerunensis kamerunensis Kiefer, 1928 [SYNONYM SUBSPECIES 301819:BCS8S nidx=null parent=8FV4Q]
Pilsbryspira albomaculata
 - Pilsbryspira albomaculata (A. d'Orbigny, 1842) [ACCEPTED SPECIES 300004:7SQ3C nidx=null]
 + Pilsbryspira albomaculata (A. d'Orbigny, 1847) [SYNONYM SPECIES 301819:4HVN8 nidx=null parent=4HVNT]
Pinna listeri
 - Pinna listeri A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:4HYTH nidx=null parent=JL77]
 + Pinna listeri A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CHC65 nidx=null parent=JL77]
Pinna patagonica
 - Pinna patagonica A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:77LKD nidx=null parent=JL77]
 + Pinna patagonica A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CHC66 nidx=null parent=JL77]
Pinnotheres monodactylum
 - Pinnotheres monodactylum Say, 1818 [SYNONYM SPECIES 300004:7Y7YC nidx=null parent=84H9L]
 + Pinnotheres monodactylum Say, 1818 [SYNONYM SPECIES 301819:4HZ7P nidx=null parent=84H9L]
Piophila senescens
 - Piophila senescens Melander & Spuler, 1917 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3Y67 nidx=null]
 + Piophila senescens Melander & Spuler, 1917 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JVTT nidx=null]
Plagioporus (Plagioporus) interruptus
 - Plagioporus (Plagioporus) interruptus Manter, 1954 [SYNONYM SPECIES 300004:CG8C8 nidx=null parent=7TXZN]
 + Plagioporus (Plagioporus) interruptus Manter, 1954 [SYNONYM SPECIES 301819:CHCQC nidx=null parent=7TXZN]
Planaria gesserensis
 - Planaria gesserensis Müller, 1788 [SYNONYM SPECIES 300004:4JJ8N nidx=null parent=3V2RM]
 + Planaria gesserensis Müller, 1780 [SYNONYM SPECIES 301819:CHCRP nidx=null parent=3V2RM]
Platymoideus gutterans
 - Platymoideus gutterans (Ball, 1931) [SYNONYM SPECIES 300004:CG935 nidx=null parent=9KSM7]
 + Platymoideus gutterans (Ball, 1931) [SYNONYM SPECIES 301819:CHDB8 nidx=null parent=9KSM7]
Platynotus
 - Platynotus De Haan, 1835 [SYNONYM GENUS 300004:B8Z69 nidx=null parent=7PGD8]
 + Platynotus De Haan, 1833 [SYNONYM GENUS 301819:CH387 nidx=null parent=7PGD8]
Platypleura (Platypleura) stridula capensis
 - Platypleura (Platypleura) stridula capensis (Linnaeus, 1764) [SYNONYM SUBSPECIES 300004:CDXCG nidx=null parent=6W33Y]
 + Platypleura (Platypleura) stridula capensis (Linnaeus, 1764) [SYNONYM SUBSPECIES 301819:CHDCQ nidx=null parent=6W33Y]
Plectogona vignai inermis
 - Plectogona vignai inermis (Strasser, 1970) [ACCEPTED SUBSPECIES 300004:CDXLB nidx=null]
 + Plectogona vignai inermis (Strasser, 1970) [ACCEPTED SUBSPECIES 301819:CHDHN nidx=null]
Plectus tenuis
 - Plectus tenuis de Man, 1884 [PROVISIONALLY_ACCEPTED SPECIES 300004:88YM4 nidx=null]
 + Plectus tenuis Bastian, 1865 [ACCEPTED SPECIES 301819:88YM3 nidx=null]
Pleurocrypta galatheae
 - Pleurocrypta galatheae auct. [SYNONYM SPECIES 300004:CBVWS nidx=null parent=4KBB6]
 + Pleurocrypta galatheae [SYNONYM SPECIES 301819:4KBB5 nidx=null parent=4KBB6]
Pleurogenes sitapurii
 - Pleurogenes sitapurii Srivastava, 1934 [SYNONYM SPECIES 300004:8K3WT nidx=null parent=84CDL]
 + Pleurogenes sitapurii Srivastava, 1934 [SYNONYM SPECIES 301819:84CD4 nidx=null parent=84CDL]
Pleuromamma abdominalis abyssalis
 - Pleuromamma abdominalis abyssalis (Giesbrecht, 1893) [ACCEPTED SUBSPECIES 300004:7HSRP nidx=null]
 + Pleuromamma abdominalis abyssalis Steuer, 1932 [ACCEPTED SUBSPECIES 301819:CHDVZ nidx=null]
Pleurotoma (Bela) blakeana var. extensa
 - Pleurotoma (Bela) blakeana var. extensa Dall, 1881 [SYNONYM VARIETY 300004:CG9Y7 nidx=null parent=43KRM]
 + Pleurotoma (Bela) blakeana var. extensa Dall, 1881 [SYNONYM VARIETY 301819:CHDYT nidx=null parent=43KRM]
Pleurotoma elatior
 - Pleurotoma elatior A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:9D4J5 nidx=null parent=9CW37]
 + Pleurotoma elatior A. d'Orbigny, 1847 [SYNONYM SPECIES 301819:CHDZM nidx=null parent=744JY]
Podocoryne americana
 - Podocoryne americana Mayer, 1900 [SYNONYM SPECIES 300004:4KQJ7 nidx=null parent=4KQHF]
 + Podocoryne americana Mayer, 1910 [SYNONYM SPECIES 301819:CHC9Y nidx=null parent=4KQHF]
Polleniomyia
 - Polleniomyia Jacentkovský, 1942 [SYNONYM GENUS 300004:C5WBR nidx=null parent=BY3X5]
 + Polleniomyia Jacentkovský, 1942 [SYNONYM GENUS 301819:CHCKR nidx=null parent=BY3X5]
 + Polleniomyia Jacentkovský, 1941 [SYNONYM GENUS 301819:CHCKS nidx=null parent=BY3X5]
Polydesmus sallei
 - Polydesmus sallei DeSaussure, 1860 [SYNONYM SPECIES 300004:935LY nidx=null parent=994CQ]
 + Polydesmus sallei DeSaussure, 1860 [SYNONYM SPECIES 301819:4L5T6 nidx=null parent=994CQ]
Polymesoda (Neocyrena) fontainei
 - Polymesoda (Neocyrena) fontainei (A. d'Orbigny, 1942) [SYNONYM SPECIES 300004:7SSG7 nidx=null parent=4LBDJ]
 + Polymesoda (Neocyrena) fontainei (A. d'Orbigny, 1846) [SYNONYM SPECIES 301819:CHCXY nidx=null parent=CHCXX]
Polymesoda fontainei
 - Polymesoda fontainei (A. d'Orbigny, 1842) [ACCEPTED SPECIES 300004:4LBDJ nidx=null]
 + Polymesoda fontainei (A. d'Orbigny, 1846) [ACCEPTED SPECIES 301819:CHCXX nidx=null]
Polymixis atossa
 - Polymixis atossa Hacker, 1990 [SYNONYM SPECIES 300004:BMW4K nidx=null parent=95CDL]
 + Polymixis atossa Hacker, 1990 [SYNONYM SPECIES 301819:95CDN nidx=null parent=95CDL]
Pomphigus spyrothecae
 - Pomphigus spyrothecae Passerini, 1860 [SYNONYM SPECIES 300004:8PHXL nidx=null parent=8PGSX]
 + Pomphigus spyrothecae Passerini, 1860 [SYNONYM SPECIES 301819:4LR5K nidx=null parent=8PGSX]
Pontia
 - Pontia Milne Edwards H., 1828 [SYNONYM GENUS 300004:BDXDB nidx=null parent=7PTPR]
 + Pontia Milne Edwards, 1828 [SYNONYM GENUS 301819:CHDMQ nidx=null parent=7PTPR]
Posterobranchus
 - Posterobranchus A. d'Orbigny, 1835 [SYNONYM GENUS 300004:BGNSM nidx=null parent=7P9K9]
 + Posterobranchus [SYNONYM GENUS 301819:CHDY4 nidx=null parent=7P9K9]
Praephiline finmarchica
 - Praephiline finmarchica (M. Sars, 1859) [SYNONYM SPECIES 300004:4M8LY nidx=null parent=3S87Y]
 + Praephiline finmarchica (M. Sars, 1859) [ACCEPTED SPECIES 301819:7SSZ6 nidx=null]
Proforficula
 - Proforficula Steinmann, 1990 [ACCEPTED GENUS 300004:8MTQD nidx=null]
 + Proforficula Steinmann, 1993 [ACCEPTED GENUS 301819:CHD7L nidx=null]
Proparasitylenchus
 - Proparasitylenchus [ACCEPTED GENUS 300004:9B7FZ nidx=null]
 + Proparasitylenchus (Wachek, 1955) Nickle, 1967 [ACCEPTED GENUS 301819:CHDBP nidx=null]
Prorhynchida
 - Prorhynchida Laumer & Giribet, 2014 [ACCEPTED ORDER 300004:7NG9J nidx=null]
 + Prorhynchida Karling, 1974 [ACCEPTED ORDER 301819:CHDCW nidx=null]
Proterorhynchus argentinus
 - Proterorhynchus argentinus Brèthes, 1912 [SYNONYM SPECIES 300004:8CNJN nidx=null parent=C2SPK]
 + Proterorhynchus argentinus Brèthes, 1912 [SYNONYM SPECIES 301819:4N3MH nidx=null parent=C2SPK]
Protomedeia (Cheirimedia) palmata
 - Protomedeia (Cheirimedia) palmata Bulyčeva, 1952 [SYNONYM SPECIES 300004:CG9LR nidx=null parent=TTWK]
 + Protomedeia (Cheirimedia) palmata Bulyčeva, 1952 [SYNONYM SPECIES 301819:CHDPX nidx=null parent=TTWK]
Protomyia fusca
 - †Protomyia fusca Oustalet, 1870 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YDJ nidx=null]
 + Protomyia fusca Oustalet, 1870 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JW6S nidx=null]
Protonemura maclachlani
 - Protonemura maclachlani [SYNONYM SPECIES 300004:8NGWQ nidx=null parent=3PNFN]
 + Protonemura maclachlani (Kimmins, 1950) [SYNONYM SPECIES 301819:CHDQ3 nidx=null parent=3PNFN]
Protonemura nyakmadongi
 - Protonemura nyakmadongi [SYNONYM SPECIES 300004:8NGTY nidx=null parent=3PNFT]
 + Protonemura nyakmadongi (Aubert, 1967) [SYNONYM SPECIES 301819:CHDQ4 nidx=null parent=3PNFT]
Protonemura umbrosa
 - Protonemura umbrosa [SYNONYM SPECIES 300004:8N4C6 nidx=null parent=5KPDT]
 + Protonemura umbrosa Illies, 1966 [SYNONYM SPECIES 301819:CHDQ6 nidx=null parent=5KPDT]
Prozvenella bangaloriensis
 - Prozvenella bangaloriensis [SYNONYM SPECIES 300004:BV6DG nidx=null parent=4N88R]
 + Prozvenella bangaloriensis Desutter-Grandcolas, Metrani & Balakrishnan, 2003 [SYNONYM SPECIES 301819:CHDW6 nidx=null parent=4N88R]
Prunum avenacea
 - Prunum avenacea auct. [SYNONYM SPECIES 300004:CBVPF nidx=null parent=4N8HW]
 + Prunum avenacea [SYNONYM SPECIES 301819:4N8HP nidx=null parent=4N8HW]
Prunum bellum
 - Prunum bellum auct. [SYNONYM SPECIES 300004:CBVPG nidx=null parent=4N8HW]
 + Prunum bellum [SYNONYM SPECIES 301819:4N8HX nidx=null parent=4N8HW]
Psammopsyllidae
 - Psammopsyllidae [SYNONYM FAMILY 300004:BG4CL nidx=null parent=7NJCG]
 + Psammopsyllidae Krishnaswamy, 1956 [SYNONYM FAMILY 301819:CHF43 nidx=null parent=7NJCG]
Psammopsyllinae
 - Psammopsyllinae [ACCEPTED SUBFAMILY 300004:7ZFQ9 nidx=null]
 + Psammopsyllinae Krishnaswamy, 1956 [ACCEPTED SUBFAMILY 301819:CHF44 nidx=null]
Pseudameira mixta mixta
 - Pseudameira mixta mixta Sars M., 1920 [ACCEPTED SUBSPECIES 300004:7ZHDW nidx=null]
 + Pseudameira mixta mixta Sars G.O., 1920 [ACCEPTED SUBSPECIES 301819:CHF7L nidx=null]
Pseudoamnicola
 - Pseudoamnicola auct. [SYNONYM GENUS 300004:CBY2K nidx=null parent=7PDPZ]
 + Pseudoamnicola [SYNONYM GENUS 301819:BGP9N nidx=null parent=7PDPZ]
Pseudocalanidae
 - Pseudocalanidae Giesbrecht, 1895 [SYNONYM FAMILY 300004:BG4CN nidx=null parent=7NGTN]
 + Pseudocalanidae Sars G.O., 1901 [SYNONYM FAMILY 301819:CHFLY nidx=null parent=7NGTN]
Pseudocnus köllikeri
 - Pseudocnus köllikeri Panning, 1949 [SYNONYM SPECIES 300004:BHG5D nidx=null parent=6WDRD]
 + Pseudocnus köllikeri of Panning, 1949 [SYNONYM SPECIES 301819:CHFP4 nidx=null parent=6WDRD]
Pseudofentonia (Dymantis) tiga
 - Pseudofentonia (Dymantis) tiga Schintlmeister, 1997 [SYNONYM SPECIES 300004:BMWFS nidx=null parent=C7JG2]
 + Pseudofentonia (Dymantis) tiga Schintlmeister, 1997 [SYNONYM SPECIES 301819:6WFWQ nidx=null parent=C7JG2]
Pseudofentonia (Eufentonia) emiror
 - Pseudofentonia (Eufentonia) emiror Schintlmeister, 1989 [SYNONYM SPECIES 300004:BMWFP nidx=null parent=C4MJT]
 + Pseudofentonia (Eufentonia) emiror Schintlmeister, 1989 [SYNONYM SPECIES 301819:78G8L nidx=null parent=C4MJT]
Pseudohormomyia orientalis
 - Pseudohormomyia orientalis Rao, 1956 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YDW nidx=null]
 + Pseudohormomyia orientalis Rao, 1956 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JW8M nidx=null]
Pseudokatosira undulata
 - †Pseudokatosira undulata (Zieten, 1830) [ACCEPTED SPECIES 300004:9ZPFS nidx=null]
 + Pseudokatosira undulata (Zieten, 1832) [ACCEPTED SPECIES 301819:7SV3D nidx=null]
Pseudokuzicus (Pseudokuzicus)
 - Pseudokuzicus (Pseudokuzicus) Gorochov, 1993 [ACCEPTED SUBGENUS 300004:CB2GS nidx=null]
 + Pseudokuzicus (Pseudokuzicus) Gorochov, 1993 [ACCEPTED SUBGENUS 301819:CH4PQ nidx=null]
Pseudosimnia wieseorum
 - Pseudosimnia wieseorum Lorenz, 1985 [ACCEPTED SPECIES 300004:6WGH5 nidx=null]
 + Pseudosimnia wieseorum Lorenz, 1987 [ACCEPTED SPECIES 301819:CHDQR nidx=null]
Pseudosphegina dichoptica
 - †Pseudosphegina dichoptica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YF8 nidx=null]
 + Pseudosphegina dichoptica Hull, 1945 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWB2 nidx=null]
Psila (Psila) hennigi
 - Psila (Psila) hennigi (Thompson & Pont, 1994) [ACCEPTED SPECIES 300004:8DJHJ nidx=null]
 + Psila (Psila) hennigi (Thompson & Pont, 1994) [ACCEPTED SPECIES 301819:4PG6X nidx=null]
Psilopus ducalis
 - Psilopus ducalis Rondani, 1850 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFC nidx=null]
 + Psilopus ducalis Rondani, 1850 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWG8 nidx=null]
Psilopus gemmatus
 - Psilopus gemmatus Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFD nidx=null]
 + Psilopus gemmatus Walker, 1849 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGB nidx=null]
Psilopus leiopus
 - Psilopus leiopus Doleschall, 1856 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFF nidx=null]
 + Psilopus leiopus Doleschall, 1856 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGH nidx=null]
Psilopus nitidus
 - Psilopus nitidus Walker, 1852 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFG nidx=null]
 + Psilopus nitidus Walker, 1852 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGK nidx=null]
Psilopus palmetorum
 - Psilopus palmetorum Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFH nidx=null]
 + Psilopus palmetorum Doleschall, 1858 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGM nidx=null]
Psilopus restrictus
 - Psilopus restrictus Hutton, 1901 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFK nidx=null]
 + Psilopus restrictus Hutton, 1901 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWGV nidx=null]
Psilopus saphirus
 - Psilopus saphirus Bigot, 1858 [SYNONYM SPECIES 300004:8D6F6 nidx=null parent=9H8MR]
 + Psilopus saphirus Bigot, 1858 [SYNONYM SPECIES 301819:4PJGL nidx=null parent=9H8MR]
Psilosciara delphinii
 - Psilosciara delphinii Séguy, 1961 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFL nidx=null]
 + Psilosciara delphinii Séguy, 1961 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWH5 nidx=null]
Psilota tabidosa
 - †Psilota tabidosa Scudder, 1890 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YFM nidx=null]
 + Psilota tabidosa Scudder, 1890 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWH7 nidx=null]
Psychoda fimbriatissima
 - Psychoda fimbriatissima Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YJ2 nidx=null]
 + Psychoda fimbriatissima Blanchard, 1854 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWHH nidx=null]
Pterolepis venosus
 - Pterolepis venosus (Fischer von Waldheim, 1839) [SYNONYM SPECIES 300004:CGBYM nidx=null parent=4PLSV]
 + Pterolepis venosus (Fischer von Waldheim, 1839) [SYNONYM SPECIES 301819:CHFMS nidx=null parent=4PLSV]
Ptilomera (Proptilomera) himalayensis
 - Ptilomera (Proptilomera) himalayensis Hungerford & Matsuda, 1958 [ACCEPTED SPECIES 300004:7WPB2 nidx=null]
 + Ptilomera (Proptilomera) himalayensis Hungerford & Matsuda, 1958 [ACCEPTED SPECIES 301819:4Q87S nidx=null]
Ptilozeuxia termitoxena
 - Ptilozeuxia termitoxena Silvestri, 1903 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YN5 nidx=null]
 + Ptilozeuxia termitoxena Silvestri, 1903 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWJF nidx=null]
Pusillina (Haurakia)
 - Pusillina (Haurakia) Iredale, 1915 [SYNONYM SUBGENUS 300004:C7D6L nidx=null parent=7P4TW]
 + Pusillina (Haurakia) Iredale, 1915 [SYNONYM SUBGENUS 301819:CH3MC nidx=null parent=7P4TW]
Pycna beccarii
 - Pycna beccarii (Lethierry, 1881) [SYNONYM SPECIES 300004:CBVHL nidx=null parent=8JS35]
 + Pycna beccarii (Lethierry, 1881) [SYNONYM SPECIES 301819:CHG9L nidx=null parent=8JS35]
Radiolus
 - †Radiolus auct. [PROVISIONALLY_ACCEPTED GENUS 300004:CBPV2 nidx=null]
 + Radiolus [PROVISIONALLY_ACCEPTED GENUS 301819:76RQ nidx=null]
Rana aurora draytonii
 - Rana aurora draytonii Baird & Girard, 1852 [SYNONYM SUBSPECIES 300004:CBZQD nidx=null parent=4RDNY]
 + Rana aurora draytonii Baird & Girard, 1852 [SYNONYM SUBSPECIES 301819:CHF6C nidx=null parent=4RDNY]
Reticulaphis mirabilis
 - Reticulaphis mirabilis [ACCEPTED SPECIES 300004:794BL nidx=null]
 + Reticulaphis mirabilis (Takahashi, 1937) [ACCEPTED SPECIES 301819:CHFS6 nidx=null]
Rhabdotylus planiventris
 - Rhabdotylus planiventris (Wiedemann, 1828) [ACCEPTED SPECIES 300004:92WRF nidx=null]
 + Rhabdotylus planiventris (Wiedemann, 1828) [ACCEPTED SPECIES 301819:8DKZ3 nidx=null]
Rhaetofungivora perrecticulata
 - †Rhaetofungivora perrecticulata Rohdendorf, 1964 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YQR nidx=null]
 + Rhaetofungivora perrecticulata Rohdendorf, 1964 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWM2 nidx=null]
Rhagio bicolor
 - Rhagio bicolor Fabricius, 1794 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YQS nidx=null]
 + Rhagio bicolor Fabricius, 1794 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWM5 nidx=null]
Rhamphomyia (Rhamphomyia) janovensis
 - Rhamphomyia (Rhamphomyia) janovensis Barták, 1981 [ACCEPTED SPECIES 300004:8DLSC nidx=null]
 + Rhamphomyia (Rhamphomyia) janovensis Barták, 1981 [ACCEPTED SPECIES 301819:4S32T nidx=null]
Rhodophyta
 - Rhodophyta [ACCEPTED PHYLUM 300004:RH2 nidx=null]
 + Rhodophyta Wettstein, 1922 [ACCEPTED PHYLUM 301819:CHDNQ nidx=null]
Rhopalopsole okamoto
 - Rhopalopsole okamoto [SYNONYM SPECIES 300004:8N4RT nidx=null parent=4CYTD]
 + Rhopalopsole okamoto (Claassen, 1936) [SYNONYM SPECIES 301819:4SLJJ nidx=null parent=4CYTD]
Rhopalosiphoninus (Rhopalosiphoninus) latysiphon
 - Rhopalosiphoninus (Rhopalosiphoninus) latysiphon (Davidson, 1912) [ACCEPTED SPECIES 300004:BYHG2 nidx=null]
 + Rhopalosiphoninus (Rhopalosiphoninus) latysiphon (Davidson, 1912) [ACCEPTED SPECIES 301819:CHDVL nidx=null]
Rhynchomyia bicolor
 - Rhynchomyia bicolor Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YVH nidx=null]
 + Rhynchomyia bicolor Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWSP nidx=null]
Rhyssota
 - Rhyssota auct. [SYNONYM GENUS 300004:CC32Z nidx=null parent=7PG3F]
 + Rhyssota [SYNONYM GENUS 301819:BGQB7 nidx=null parent=7PG3F]
Rotularia (Tectorotularia)
 - Rotularia (Tectorotularia) [ACCEPTED SUBGENUS 300004:85KTK nidx=null]
 + Rotularia (Tectorotularia) Regenhardt, 1961 [ACCEPTED SUBGENUS 301819:CHG3B nidx=null]
Rubria vitticollis
 - Rubria vitticollis (Stål, 1855) [SYNONYM SPECIES 300004:CBYVM nidx=null parent=65HVX]
 + Rubria vitticollis (Stål, 1855) [SYNONYM SPECIES 301819:CHG4K nidx=null parent=65HVX]
Sagartia carcinophilus
 - Sagartia carcinophilus Verrill, 1869 [SYNONYM SPECIES 300004:CGK8R nidx=null parent=993X2]
 + Sagartia carcinophilus Verrill, 1869 [SYNONYM SPECIES 301819:CHKSR nidx=null parent=993X2]
Sappaphis mali
 - Sappaphis mali [SYNONYM SPECIES 300004:8PJRX nidx=null parent=4B9R4]
 + Sappaphis mali [SYNONYM SPECIES 301819:CHFXJ nidx=null parent=4B9R4]
Sapromyza fuscipes
 - Sapromyza fuscipes Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3YW8 nidx=null]
 + Sapromyza fuscipes Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JWVH nidx=null]
Sarcophaga mezzadrii
 - Sarcophaga mezzadrii Séguy, 1951 [SYNONYM SPECIES 300004:8DRDD nidx=null parent=8DQCD]
 + Sarcophaga mezzadrii Séguy, 1951 [SYNONYM SPECIES 301819:79NF3 nidx=null parent=8DQCD]
Scaphytopius (Cloanthanus) acutus
 - Scaphytopius (Cloanthanus) acutus (Say, 1830) [SYNONYM SPECIES 300004:8RDVX nidx=null parent=9RK25]
 + Scaphytopius (Cloanthanus) acutus (Say, 1830) [SYNONYM SPECIES 301819:CHGF7 nidx=null parent=9RK25]
Scaphytopius (Cloanthanus) acutus tenuis
 - Scaphytopius (Cloanthanus) acutus tenuis (DeLong, 1945) [SYNONYM SUBSPECIES 300004:CBYCV nidx=null parent=9LK99]
 + Scaphytopius (Cloanthanus) acutus tenuis (DeLong, 1945) [SYNONYM SUBSPECIES 301819:BQFFV nidx=null parent=9LK99]
Scaphytopius (Cloanthanus) andromus
 - Scaphytopius (Cloanthanus) andromus (Ball, 1931) [SYNONYM SPECIES 300004:8RDW8 nidx=null parent=9KSJR]
 + Scaphytopius (Cloanthanus) andromus (Ball, 1931) [SYNONYM SPECIES 301819:CHGFC nidx=null parent=9KSJR]
Scaphytopius (Cloanthanus) atrafrons
 - Scaphytopius (Cloanthanus) atrafrons (DeLong, 1943) [SYNONYM SPECIES 300004:8RDWG nidx=null parent=9KSK3]
 + Scaphytopius (Cloanthanus) atrafrons (DeLong, 1943) [SYNONYM SPECIES 301819:CHGFF nidx=null parent=9KSK3]
Scaphytopius (Cloanthanus) calliandrus
 - Scaphytopius (Cloanthanus) calliandrus (Ball, 1931) [SYNONYM SPECIES 300004:C4GZR nidx=null parent=9KSKH]
 + Scaphytopius (Cloanthanus) calliandrus (Ball, 1931) [SYNONYM SPECIES 301819:8RDWN nidx=null parent=9KSKH]
Scaphytopius (Cloanthanus) cornutus
 - Scaphytopius (Cloanthanus) cornutus (DeLong, 1944) [SYNONYM SPECIES 300004:8RDWW nidx=null parent=9KSKY]
 + Scaphytopius (Cloanthanus) cornutus (DeLong, 1944) [SYNONYM SPECIES 301819:CHGFM nidx=null parent=9KSKY]
Scaphytopius (Cloanthanus) cumbresus
 - Scaphytopius (Cloanthanus) cumbresus Linnavuori & DeLong, 1978 [SYNONYM SPECIES 300004:8RDWY nidx=null parent=9KSKZ]
 + Scaphytopius (Cloanthanus) cumbresus Linnavuori & DeLong, 1978 [SYNONYM SPECIES 301819:CHGFN nidx=null parent=9KSKZ]
Scaphytopius (Cloanthanus) dilatus
 - Scaphytopius (Cloanthanus) dilatus (DeLong, 1944) [SYNONYM SPECIES 300004:8RDX3 nidx=null parent=9KSL9]
 + Scaphytopius (Cloanthanus) dilatus (DeLong, 1944) [SYNONYM SPECIES 301819:CHGFQ nidx=null parent=9KSL9]
Scaphytopius (Cloanthanus) furcifer
 - Scaphytopius (Cloanthanus) furcifer Linnavuori, 1959 [SYNONYM SPECIES 300004:8RDXG nidx=null parent=9KSLZ]
 + Scaphytopius (Cloanthanus) furcifer Linnavuori, 1959 [SYNONYM SPECIES 301819:CHGFT nidx=null parent=9KSLZ]
Scaphytopius (Cloanthanus) hymenocleae
 - Scaphytopius (Cloanthanus) hymenocleae (Van Duzee, 1923) [SYNONYM SPECIES 300004:C87PW nidx=null parent=9KSMD]
 + Scaphytopius (Cloanthanus) hymenocleae (Van Duzee, 1923) [SYNONYM SPECIES 301819:8RDXR nidx=null parent=9KSMD]
Scaphytopius (Cloanthanus) insolitus
 - Scaphytopius (Cloanthanus) insolitus Hepner, 1946 [SYNONYM SPECIES 300004:8RDXT nidx=null parent=9KSMG]
 + Scaphytopius (Cloanthanus) insolitus Hepner, 1946 [SYNONYM SPECIES 301819:CHGFX nidx=null parent=9KSMG]
Scaphytopius (Cloanthanus) jocosus
 - Scaphytopius (Cloanthanus) jocosus (Van Duzee, 1923) [SYNONYM SPECIES 300004:CGD7B nidx=null parent=9KSMP]
 + Scaphytopius (Cloanthanus) jocosus (Van Duzee, 1923) [SYNONYM SPECIES 301819:8RDXY nidx=null parent=9KSMP]
Scaphytopius (Cloanthanus) limbatus
 - Scaphytopius (Cloanthanus) limbatus (Osborn, 1926) [SYNONYM SPECIES 300004:C4H2D nidx=null parent=9KSMW]
 + Scaphytopius (Cloanthanus) limbatus (Osborn, 1926) [SYNONYM SPECIES 301819:8RDY3 nidx=null parent=9KSMW]
Scaphytopius (Cloanthanus) lineafrons
 - Scaphytopius (Cloanthanus) lineafrons (DeLong, 1943) [SYNONYM SPECIES 300004:8RDY6 nidx=null parent=9KSMZ]
 + Scaphytopius (Cloanthanus) lineafrons (DeLong, 1943) [SYNONYM SPECIES 301819:CHGG4 nidx=null parent=9KSMZ]
Scaphytopius (Cloanthanus) meridianus
 - Scaphytopius (Cloanthanus) meridianus Hepner, 1946 [SYNONYM SPECIES 300004:CF3P3 nidx=null parent=9KSNF]
 + Scaphytopius (Cloanthanus) meridianus Hepner, 1946 [SYNONYM SPECIES 301819:8RDYB nidx=null parent=9KSNF]
Scaphytopius (Cloanthanus) nanus
 - Scaphytopius (Cloanthanus) nanus (Van Duzee, 1907) [SYNONYM SPECIES 300004:8RDYD nidx=null parent=9KSNJ]
 + Scaphytopius (Cloanthanus) nanus (Van Duzee, 1907) [SYNONYM SPECIES 301819:CHGG6 nidx=null parent=9KSNJ]
Scaphytopius (Cloanthanus) nigrinotus
 - Scaphytopius (Cloanthanus) nigrinotus Caldwell, 1952 [SYNONYM SPECIES 300004:CBYDP nidx=null parent=9KSNR]
 + Scaphytopius (Cloanthanus) nigrinotus Caldwell, 1952 [SYNONYM SPECIES 301819:8RDYH nidx=null parent=9KSNR]
Scaphytopius (Cloanthanus) paraguayensis
 - Scaphytopius (Cloanthanus) paraguayensis Cheng, 1980 [SYNONYM SPECIES 300004:8RDYR nidx=null parent=9KSP7]
 + Scaphytopius (Cloanthanus) paraguayensis Cheng, 1980 [SYNONYM SPECIES 301819:CHGGC nidx=null parent=9KSP7]
Scaphytopius (Cloanthanus) rubellus
 - Scaphytopius (Cloanthanus) rubellus (Sanders & DeLong, 1919) [SYNONYM SPECIES 300004:CF3PB nidx=null parent=9KSPK]
 + Scaphytopius (Cloanthanus) rubellus (Sanders & DeLong, 1919) [SYNONYM SPECIES 301819:8RDZ4 nidx=null parent=9KSPK]
Scaphytopius (Cloanthanus) serratus
 - Scaphytopius (Cloanthanus) serratus (DeLong, 1943) [SYNONYM SPECIES 300004:8RDZ7 nidx=null parent=9KSPS]
 + Scaphytopius (Cloanthanus) serratus (DeLong, 1943) [SYNONYM SPECIES 301819:CHGGF nidx=null parent=9KSPS]
Scaphytopius (Cloanthanus) tripunctatus
 - Scaphytopius (Cloanthanus) tripunctatus (DeLong, 1943) [SYNONYM SPECIES 300004:CBYF2 nidx=null parent=9KSQ9]
 + Scaphytopius (Cloanthanus) tripunctatus (DeLong, 1943) [SYNONYM SPECIES 301819:8RDZK nidx=null parent=9KSQ9]
Scaphytopius (Convelinus) albifrons
 - Scaphytopius (Convelinus) albifrons Hepner, 1946 [SYNONYM SPECIES 300004:CGD6J nidx=null parent=9KSJB]
 + Scaphytopius (Convelinus) albifrons Hepner, 1946 [SYNONYM SPECIES 301819:CHGF9 nidx=null parent=9KSJB]
Scaphytopius (Convelinus) atrifrons
 - Scaphytopius (Convelinus) atrifrons DeLong & Linnavuori, 1978 [SYNONYM SPECIES 300004:CGD7R nidx=null parent=9KSK4]
 + Scaphytopius (Convelinus) atrifrons DeLong & Linnavuori, 1978 [SYNONYM SPECIES 301819:8RDZY nidx=null parent=9KSK4]
Scaphytopius (Convelinus) desertanus
 - Scaphytopius (Convelinus) desertanus (Ball, 1931) [SYNONYM SPECIES 300004:CGD6X nidx=null parent=9KSL6]
 + Scaphytopius (Convelinus) desertanus (Ball, 1931) [SYNONYM SPECIES 301819:CHGFP nidx=null parent=9KSL6]
Scaphytopius (Convelinus) irroratus xanthanus
 - Scaphytopius (Convelinus) irroratus xanthanus (Ball, 1931) [SYNONYM SUBSPECIES 300004:CGD78 nidx=null parent=9LK9M]
 + Scaphytopius (Convelinus) irroratus xanthanus (Ball, 1931) [SYNONYM SUBSPECIES 301819:CHGG2 nidx=null parent=9LK9M]
Scaphytopius (Convelinus) schuezi
 - Scaphytopius (Convelinus) schuezi Linnavuori & Heller, 1961 [SYNONYM SPECIES 300004:8RF2Q nidx=null parent=9KSPP]
 + Scaphytopius (Convelinus) schuezi Linnavuori & Heller, 1961 [SYNONYM SPECIES 301819:CHGGJ nidx=null parent=9KSPP]
Scaphytopius (Fundarus) vinculatus
 - Scaphytopius (Fundarus) vinculatus Linnavuori & DeLong, 1978 [SYNONYM SPECIES 300004:CF3PK nidx=null parent=9KSQF]
 + Scaphytopius (Fundarus) vinculatus Linnavuori & DeLong, 1978 [SYNONYM SPECIES 301819:8RF2V nidx=null parent=9KSQF]
Scaphytopius (Scaphytopius) ritanus
 - Scaphytopius (Scaphytopius) ritanus Ball, 1931 [SYNONYM SPECIES 300004:CGD7V nidx=null parent=9RK2J]
 + Scaphytopius (Scaphytopius) ritanus Ball, 1931 [SYNONYM SPECIES 301819:8RNFQ nidx=null parent=9RK2J]
Schizoneuraphis siamensis
 - Schizoneuraphis siamensis [ACCEPTED SPECIES 300004:4VBKH nidx=null]
 + Schizoneuraphis siamensis (Takahashi, 1941) [ACCEPTED SPECIES 301819:CHGNY nidx=null]
Scopolia lateralis
 - Scopolia lateralis Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3Z6M nidx=null]
 + Scopolia lateralis Macquart, 1844 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JX98 nidx=null]
Scottopsyllus (Intermediopsyllus) intermedius
 - Scottopsyllus (Intermediopsyllus) intermedius (Scott T. & Scott A., 1895) [SYNONYM SPECIES 300004:C88FH nidx=null parent=5BWZP]
 + Scottopsyllus (Intermediopsyllus) intermedius (Scott T. & Scott A., 1895) [SYNONYM SPECIES 301819:CHG4Z nidx=null parent=5BWZP]
Scytaleum italicum
 - Scytaleum italicum Meyl, 1954 [ACCEPTED SPECIES 300004:8GJJ2 nidx=null]
 + Scytaleum italicum (Meyl, 1954) Andrássy, 1961 [SYNONYM SPECIES 301819:CHGB7 nidx=null parent=CH3LZ]
Sepia capensis
 - Sepia capensis A. d'Orbigny, 1845 [SYNONYM SPECIES 300004:CC3H9 nidx=null parent=BJ42H]
 + Sepia capensis A. d'Orbigny, 1835 [SYNONYM SPECIES 301819:CHGPJ nidx=null parent=BJ42H]
Sepia elongata
 - Sepia elongata A. d'Orbigny, 1839–1842 [ACCEPTED SPECIES 300004:CC3GZ nidx=null]
 + Sepia elongata A. d'Orbigny, 1842 [ACCEPTED SPECIES 301819:CHGPF nidx=null]
Sepia rouxii
 - Sepia rouxii A. d'Orbigny, 1839-1842 [SYNONYM SPECIES 300004:C8C4D nidx=null parent=BJ2FD]
 + Sepia rouxii A. d'Orbigny, 1842 [SYNONYM SPECIES 301819:4WQLB nidx=null parent=BJ2FD]
Sepiola japonica
 - Sepiola japonica Tilesius, 1845 [SYNONYM SPECIES 300004:C8C59 nidx=null parent=C7M3Z]
 + Sepiola japonica A. d'Orbigny, 1845 [SYNONYM SPECIES 301819:CHGPL nidx=null parent=CH6XZ]
Sepioteuthis lessoniana
 - Sepioteuthis lessoniana A. d'Orbigny, 1826 [ACCEPTED SPECIES 300004:6YFXW nidx=null]
 + Sepioteuthis lessoniana Lesson, 1831 [ACCEPTED SPECIES 301819:CHGPM nidx=null]
Sergia bisulcatus
 - Sergia bisulcatus (Wood-Mason & Alcock, 1891) [SYNONYM SPECIES 300004:BYQG2 nidx=null parent=9XWPX]
 + Sergia bisulcatus (Wood-Mason & Alcock, 1891) [SYNONYM SPECIES 301819:CHGR8 nidx=null parent=9XWPX]
Serpula funiculis
 - Serpula funiculis Wolleman, 1902 [SYNONYM SPECIES 300004:4WWJQ nidx=null parent=74K4G]
 + Serpula funiculis Wollemann, 1899 [SYNONYM SPECIES 301819:CHGSZ nidx=null parent=CH8KF]
Sesarma (Parasesarma) lenzii
 - Sesarma (Parasesarma) lenzii De Man, 1895 [SYNONYM SPECIES 300004:CGF7Q nidx=null parent=84GLX]
 + Sesarma (Parasesarma) lenzii De Man, 1895 [SYNONYM SPECIES 301819:CHGV6 nidx=null parent=84GLX]
Sesarma sediliensis
 - Sesarma sediliensis Tweedie, 1940 [SYNONYM SPECIES 300004:84GBB nidx=null parent=84GQH]
 + Sesarma sediliensis Tweedie, 1940 [SYNONYM SPECIES 301819:4WZ27 nidx=null parent=84GQH]
Setulia algira
 - Setulia algira Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3Z7J nidx=null]
 + Setulia algira Robineau-Desvoidy, 1863 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JX9S nidx=null]
Simulium (Simulium) ibariense
 - Simulium (Simulium) ibariense Zivković & Grenier, 1959 [ACCEPTED SPECIES 300004:8DYQQ nidx=null]
 + Simulium (Simulium) ibariense Zivković & Grenier, 1959 [ACCEPTED SPECIES 301819:4XH2R nidx=null]
Simulium (Simulium) schoenbaueri
 - Simulium (Simulium) schoenbaueri Enderlein, 1921 [ACCEPTED SPECIES 300004:CC32Y nidx=null]
 + Simulium (Simulium) schoenbaueri Enderlein, 1921 [ACCEPTED SPECIES 301819:CHHBT nidx=null]
Simulium sanchezi
 - Simulium sanchezi Ramírez-Pérez, Yarzábal & Peterson, 1982 [SYNONYM SPECIES 300004:8F2HG nidx=null parent=8DYF8]
 + Simulium sanchezi Ramírez-Pérez, Yarzábal & Peterson, 1982 [SYNONYM SPECIES 301819:4XHTB nidx=null parent=8DYF8]
Sinonipponaphis formosana
 - Sinonipponaphis formosana [ACCEPTED SPECIES 300004:4XLBW nidx=null]
 + Sinonipponaphis formosana (Takahashi, 1927) [ACCEPTED SPECIES 301819:CHGJP nidx=null]
Siphogenerina raphanus var. costulata
 - Siphogenerina raphanus var. costulata Cushman, 1917 [ACCEPTED VARIETY 300004:843NH nidx=null]
 + Siphogenerina raphanus var. costulata Cushman, 1917 [ACCEPTED VARIETY 301819:5RJBM nidx=null]
Siphonella antorides
 - Siphonella antorides Séguy, 1950 [SYNONYM SPECIES 300004:8F2X5 nidx=null parent=C2VL9]
 + Siphonella antorides Séguy, 1950 [SYNONYM SPECIES 301819:4XPJB nidx=null parent=C2VL9]
Sitobion (Sitobion)
 - Sitobion (Sitobion) Mordvilko, 1914 [ACCEPTED SUBGENUS 300004:8Q6MN nidx=null]
 + Sitobion (Sitobion) Mordvilko, 1914 [ACCEPTED SUBGENUS 301819:CH6NP nidx=null]
Skrjabinodon mabuyae
 - Skrjabinodon mabuyae Sandground, 1936 [ACCEPTED SPECIES 300004:9C97Q nidx=null]
 + Skrjabinodon mabuyae (Sandground, 1936) Inglis, 1968 [ACCEPTED SPECIES 301819:CHGPK nidx=null]
Sphaerophoria turkmenica
 - Sphaerophoria turkmenica Bańkowska, 1964 [SYNONYM SPECIES 300004:8F3VN nidx=null parent=8F3RR]
 + Sphaerophoria turkmenica Bańkowska, 1964 [SYNONYM SPECIES 301819:4YRCC nidx=null parent=8F3RR]
Sphaeropoeus banksianus
 - Sphaeropoeus banksianus Butler, 1873 [SYNONYM SPECIES 300004:CF5M8 nidx=null parent=6Z7YP]
 + Sphaeropoeus banksianus Butler, 1873 [SYNONYM SPECIES 301819:CHHFM nidx=null parent=6Z7YP]
Sphenia cleryana
 - Sphenia cleryana A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:4YV72 nidx=null parent=R5JH]
 + Sphenia cleryana A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CHHK5 nidx=null parent=CGT6S]
Sphingolabis albipennis
 - Sphingolabis albipennis [SYNONYM SPECIES 300004:BX2QF nidx=null parent=8MWTL]
 + Sphingolabis albipennis (von Muhlfeld, 1825) [SYNONYM SPECIES 301819:CHHPD nidx=null parent=682DK]
Sphyrotarsus hervibazini
 - Sphyrotarsus hervibazini (Parent, 1914) [SYNONYM SPECIES 300004:92X3Z nidx=null parent=9HRYG]
 + Sphyrotarsus hervibazini (Parent, 1914) [SYNONYM SPECIES 301819:8F4C5 nidx=null parent=9HRYG]
Spirorbis (Laeospira) tridentatus
 - Spirorbis (Laeospira) tridentatus Levinsen, 1884 [SYNONYM SPECIES 300004:CC6V8 nidx=null parent=4Z8FK]
 + Spirorbis (Laeospira) tridentatus Levinsen, 1884 [SYNONYM SPECIES 301819:CHHXN nidx=null parent=4Z8FK]
Spisula isabelleana
 - Spisula isabelleana (A. d'Orbigny, 1846) [SYNONYM SPECIES 300004:4Z96P nidx=null parent=3XDDF]
 + Spisula isabelleana (A. d'Orbigny, 1841) [ACCEPTED SPECIES 301819:CHGJC nidx=null]
Spisula petitii
 - Spisula petitii (A. d'Orbigny, 1846) [SYNONYM SPECIES 300004:4Z96W nidx=null parent=3XDFT]
 + Spisula petitii (A. d'Orbigny, 1841) [ACCEPTED SPECIES 301819:CHGJD nidx=null]
Stangeria
 - Stangeria [ACCEPTED GENUS 300004:CF487 nidx=null]
 + Stangeria T.Moore [ACCEPTED GENUS 301819:CHGP8 nidx=null]
Stenhelia (Delavalia) bocqueti
 - Stenhelia (Delavalia) bocqueti Soyer, 1972 [SYNONYM SPECIES 300004:BX2X2 nidx=null parent=7ZGSG]
 + Stenhelia (Delavalia) bocqueti Soyer, 1972 [SYNONYM SPECIES 301819:CHGY9 nidx=null parent=7ZGSG]
Stigmatophora (Stigmatophora) albosericea
 - Stigmatophora (Stigmatophora) albosericea Moore, 1877 [SYNONYM SPECIES 300004:BRDTN nidx=null parent=BFXBK]
 + Stigmatophora (Stigmatophora) albosericea Moore, 1877 [SYNONYM SPECIES 301819:98G2T nidx=null parent=BFXBK]
Stigmatophora (Stigmatophora) ochracea
 - Stigmatophora (Stigmatophora) ochracea Lederer, 1855 [SYNONYM SPECIES 300004:BRDTP nidx=null parent=BFXBC]
 + Stigmatophora (Stigmatophora) ochracea Lederer, 1855 [SYNONYM SPECIES 301819:98G2X nidx=null parent=BFXBC]
Stigmatophora (Stigmatophora) sinensis
 - Stigmatophora (Stigmatophora) sinensis Walker, 1854 [SYNONYM SPECIES 300004:BRDTQ nidx=null parent=BFXBC]
 + Stigmatophora (Stigmatophora) sinensis Walker, 1854 [SYNONYM SPECIES 301819:98G2Y nidx=null parent=BFXBC]
Strongylosoma sagittarius
 - Strongylosoma sagittarius Karsch, 1881 [ACCEPTED SPECIES 300004:C8J76 nidx=null]
 + Strongylosoma sagittarius Karsch, 1881 [ACCEPTED SPECIES 301819:CHH3H nidx=null]
Strophomena
 - †Strophomena Blainville, 1824 [ACCEPTED GENUS 300004:BTPQG nidx=null]
 + Strophomena Rafinesque in de Blainville, 1824 [ACCEPTED GENUS 301819:CHH6F nidx=null]
Stylatula
 - Stylatula Verrill, 1864 [ACCEPTED GENUS 300004:84TXM nidx=null]
 + Stylatula Verrill, 1864 [ACCEPTED GENUS 301819:CHH8H nidx=null]
Suzukia (Pheosiopsis) luscinicola
 - Suzukia (Pheosiopsis) luscinicola Nakamura, 1973 [SYNONYM SPECIES 300004:BRDV8 nidx=null parent=946X6]
 + Suzukia (Pheosiopsis) luscinicola Nakamura, 1973 [SYNONYM SPECIES 301819:98GBT nidx=null parent=946X6]
Syrphus flavocinctus
 - Syrphus flavocinctus Fallén, 1810 [SYNONYM SPECIES 300004:8F7ZK nidx=null parent=C2TMK]
 + Syrphus flavocinctus Fallén, 1810 [SYNONYM SPECIES 301819:543JR nidx=null parent=C2TMK]
Tabanus (Tabanus) americanus
 - Tabanus (Tabanus) americanus Forster, 1771 [ACCEPTED SPECIES 300004:C8HJ7 nidx=null]
 + Tabanus (Tabanus) americanus Forster, 1771 [ACCEPTED SPECIES 301819:CHJ2K nidx=null]
Tabanus (Tabanus) imitans
 - Tabanus (Tabanus) imitans Walker, 1848 [ACCEPTED SPECIES 300004:8F8YW nidx=null]
 + Tabanus (Tabanus) imitans Walker, 1848 [ACCEPTED SPECIES 301819:CHJ2N nidx=null]
Tabanus (Tabanus) megalops
 - Tabanus (Tabanus) megalops Walker, 1854 [ACCEPTED SPECIES 300004:C3NGR nidx=null]
 + Tabanus (Tabanus) megalops Walker, 1854 [ACCEPTED SPECIES 301819:CHJ2Q nidx=null]
Tabanus (Tabanus) schuurmansi
 - Tabanus (Tabanus) schuurmansi Schuurmans Stekhoven, 1932 [ACCEPTED SPECIES 300004:CC8H2 nidx=null]
 + Tabanus (Tabanus) schuurmansi Schuurmans Stekhoven, 1932 [ACCEPTED SPECIES 301819:CHJ2R nidx=null]
Tabanus (Tabanus) trichinopolis
 - Tabanus (Tabanus) trichinopolis Ricardo, 1914 [ACCEPTED SPECIES 300004:CC8H7 nidx=null]
 + Tabanus (Tabanus) trichinopolis Ricardo, 1914 [ACCEPTED SPECIES 301819:CHJ33 nidx=null]
Tabanus (Therioplectes) albovittatus
 - Tabanus (Therioplectes) albovittatus Kröber, 1930 [SYNONYM SPECIES 300004:8F9DF nidx=null parent=C2RRL]
 + Tabanus (Therioplectes) albovittatus Kröber, 1930 [SYNONYM SPECIES 301819:547C7 nidx=null parent=C2RRL]
Tabanus bellardii
 - Tabanus bellardii Szilády, 1926 [SYNONYM SPECIES 300004:8F9H4 nidx=null parent=8F8YG]
 + Tabanus bellardii Szilády, 1926 [SYNONYM SPECIES 301819:547J7 nidx=null parent=8F8YG]
Tabanus fenestralis
 - Tabanus fenestralis Szilády, 1926 [SYNONYM SPECIES 300004:8F9NW nidx=null parent=8F8QH]
 + Tabanus fenestralis Szilády, 1926 [SYNONYM SPECIES 301819:547WQ nidx=null parent=8F8QH]
Tachydromyia sericea
 - Tachydromyia sericea Macquart, 1823 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZLH nidx=null]
 + Tachydromyia sericea Macquart, 1823 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JXY3 nidx=null]
Taenia cucurbitina
 - Taenia cucurbitina Pallas, 1756 [SYNONYM SPECIES 300004:8NBQC nidx=null parent=8N695]
 + Taenia cucurbitina Pallas, 1766 [SYNONYM SPECIES 301819:CHJBV nidx=null parent=8N695]
Tanyderites admirandus
 - †Tanyderites admirandus Kalugina, 1985 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZMD nidx=null]
 + Tanyderites admirandus Kalugina, 1985 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JXZ6 nidx=null]
Tanytarsus longipes
 - Tanytarsus longipes Akhrorov, 1967 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZMV nidx=null]
 + Tanytarsus longipes Akhrorov, 1967 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY44 nidx=null]
Tapes (Callistotapes)
 - Tapes (Callistotapes) Sacco, 1900 [SYNONYM SUBGENUS 300004:C96HD nidx=null parent=7PD2J]
 + Tapes (Callistotapes) Sacco, 1900 [SYNONYM SUBGENUS 301819:CGTLY nidx=null parent=7PD2J]
Tedania (Tedaniopsis) actiniiformis
 - Tedania (Tedaniopsis) actiniiformis Ridley & Dendy, 1886 [SYNONYM SPECIES 300004:CGG6M nidx=null parent=7BN2L]
 + Tedania (Tedaniopsis) actiniiformis Ridley & Dendy, 1886 [SYNONYM SPECIES 301819:CHHH8 nidx=null parent=7BN2L]
Tedania (Trachytedania) biraphidora
 - Tedania (Trachytedania) biraphidora (Boury-Esnault, 1973) [SYNONYM SPECIES 300004:CGG6N nidx=null parent=57TWY]
 + Tedania (Trachytedania) biraphidora (Boury-Esnault, 1973) [SYNONYM SPECIES 301819:CHHH9 nidx=null parent=57TWY]
Tendipes allothrix
 - Tendipes allothrix Kieffer, 1912 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZN8 nidx=null]
 + Tendipes allothrix Kieffer, 1912 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5G nidx=null]
Tendipes armatifrons
 - Tendipes armatifrons Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZN9 nidx=null]
 + Tendipes armatifrons Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5L nidx=null]
Tendipes atrifurea
 - Tendipes atrifurea Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZNB nidx=null]
 + Tendipes atrifurea Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5Q nidx=null]
Tendipes brunetttii
 - Tendipes brunetttii Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZNC nidx=null]
 + Tendipes brunetttii Kieffer, 1913 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY5V nidx=null]
Tendipes inermifrons
 - Tendipes inermifrons Kieffer, 1916 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZNH nidx=null]
 + Tendipes inermifrons Kieffer, 1916 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY7D nidx=null]
Tendipes sessilis
 - Tendipes sessilis Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZNJ nidx=null]
 + Tendipes sessilis Kieffer, 1911 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY7Z nidx=null]
Tephritis macula
 - Tephritis macula Fabricius, 1805 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZNM nidx=null]
 + Tephritis macula Fabricius, 1805 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JY8S nidx=null]
Terpnosia ichangensis
 - Terpnosia ichangensis Liu, 1940 [SYNONYM SPECIES 300004:CGGQ8 nidx=null parent=5CRPJ]
 + Terpnosia ichangensis Liu, 1940 [SYNONYM SPECIES 301819:CHHXZ nidx=null parent=5CRPJ]
Tetanocerus
 - Tetanocerus Latreille, 1800 [SYNONYM GENUS 300004:C3VCB nidx=null parent=BYRMJ]
 + Tetanocerus Duméril, 1800 [SYNONYM GENUS 301819:CHHYT nidx=null parent=BYRMJ]
Tetracotyle baughi
 - Tetracotyle baughi Pandey, 1973 [ACCEPTED SPECIES 300004:B2QYR nidx=null]
 + Tetracotyle baughi Pandey, 1975 [ACCEPTED SPECIES 301819:CHHZQ nidx=null]
Tetracotyle singhi
 - Tetracotyle singhi Pandey, 1973 [ACCEPTED SPECIES 300004:B2R5F nidx=null]
 + Tetracotyle singhi Pandey, 1975 [ACCEPTED SPECIES 301819:CHHZW nidx=null]
Tetracotyle tandoni
 - Tetracotyle tandoni Pandey, 1973 [ACCEPTED SPECIES 300004:B2R7W nidx=null]
 + Tetracotyle tandoni Pandey, 1975 [ACCEPTED SPECIES 301819:CHHZX nidx=null]
Tetrapturus beloni
 - Tetrapturus beloni () non Rafinesque, 1810 [MISAPPLIED SPECIES 300004:CGH23 nidx=null parent=55RY8]
 + Tetrapturus beloni () [MISAPPLIED SPECIES 301819:CHJ8M nidx=null parent=55RY8]
Tettigonia chevrolatii
 - Tettigonia chevrolatii Signoret, 1855 [SYNONYM SPECIES 300004:CGH59 nidx=null parent=42LHJ]
 + Tettigonia chevrolatii Signoret, 1855 [SYNONYM SPECIES 301819:CHJC2 nidx=null parent=42LHJ]
Tettigonia hartii
 - Tettigonia hartii Ball, 1901 [SYNONYM SPECIES 300004:C8K9T nidx=null parent=VCL5]
 + Tettigonia hartii Ball, 1901 [SYNONYM SPECIES 301819:CHJC8 nidx=null parent=VCL5]
Tettigonia perrisii
 - Tettigonia perrisii Signoret, 1855 [SYNONYM SPECIES 300004:CGH5Q nidx=null parent=8TRD4]
 + Tettigonia perrisii Signoret, 1855 [SYNONYM SPECIES 301819:CHJCF nidx=null parent=8TRD4]
Teutonophon striatus
 - †Teutonophon striatus (A. Férussac & d'Orbigny, 1842) [ACCEPTED SPECIES 300004:55Y54 nidx=null]
 + Teutonophon striatus (A. d'Orbigny, 1826) [ACCEPTED SPECIES 301819:CHJFD nidx=null]
Thereva nigella
 - Thereva nigella Wiedemann, 1828 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZPY nidx=null]
 + Thereva nigella Wiedemann, 1828 [PROVISIONALLY_ACCEPTED SPECIES 301819:9V8H7 nidx=null]
Therioaphis (Therioaphis) trifolii
 - Therioaphis (Therioaphis) trifolii (Monell, 1882) [SYNONYM SPECIES 300004:8QZKM nidx=null parent=5F7WT]
 + Therioaphis (Therioaphis) trifolii (Monell, 1882) [SYNONYM SPECIES 301819:CHJWB nidx=null parent=5F7WT]
Thermocyclops schmeili marmagoensis
 - Thermocyclops schmeili marmagoensis Sewell, 1964 [ACCEPTED SUBSPECIES 300004:5F7XT nidx=null]
 + Thermocyclops schmeili marmagoensis Sewell, 1960 [ACCEPTED SUBSPECIES 301819:CHJWR nidx=null]
Thoracaphis crematogastri
 - Thoracaphis crematogastri [SYNONYM SPECIES 300004:C8JC4 nidx=null parent=34WPT]
 + Thoracaphis crematogastri Takahashi, 1941 [SYNONYM SPECIES 301819:CHK55 nidx=null parent=CGZC9]
Thoracaphis formosana
 - Thoracaphis formosana [SYNONYM SPECIES 300004:8QZXQ nidx=null parent=4XLBW]
 + Thoracaphis formosana (Takahashi, 1927) [SYNONYM SPECIES 301819:CHK57 nidx=null parent=CHGJP]
Thoracaphis mirabilis
 - Thoracaphis mirabilis [SYNONYM SPECIES 300004:8R2X7 nidx=null parent=794BL]
 + Thoracaphis mirabilis Takahashi, 1937 [SYNONYM SPECIES 301819:CHK58 nidx=null parent=CHFS6]
Thoracaphis siamensis
 - Thoracaphis siamensis [SYNONYM SPECIES 300004:8QVRW nidx=null parent=4VBKH]
 + Thoracaphis siamensis Takahashi, 1941 [SYNONYM SPECIES 301819:CHK59 nidx=null parent=CHGNY]
Thoracaphis sutepensis
 - Thoracaphis sutepensis [SYNONYM SPECIES 300004:8QWTB nidx=null parent=6S9FT]
 + Thoracaphis sutepensis Takahashi, 1941 [SYNONYM SPECIES 301819:CHK5B nidx=null parent=CH9HG]
Thripsaphis (Larvaphis) brevicornis carpaticae
 - Thripsaphis (Larvaphis) brevicornis carpaticae Mamontova, 1963 [SYNONYM SUBSPECIES 300004:CF92N nidx=null parent=5F84H]
 + Thripsaphis (Larvaphis) brevicornis carpaticae Mamontova, 1963 [SYNONYM SUBSPECIES 301819:CHK7N nidx=null parent=5F84H]
Tipula florilega
 - Tipula florilega Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZTK nidx=null]
 + Tipula florilega Linnaeus, 1758 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYDH nidx=null]
Tipula vibratrix
 - Tipula vibratrix Linnaeus, 1761 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZVP nidx=null]
 + Tipula vibratrix Linnaeus, 1761 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYHF nidx=null]
Tonites
 - Tonites auct. [SYNONYM GENUS 300004:CC8JT nidx=null parent=7PLG3]
 + Tonites [SYNONYM GENUS 301819:BGSPN nidx=null parent=7PLG3]
Torinia dorsuosa
 - Torinia dorsuosa auct. [SYNONYM SPECIES 300004:CC8M8 nidx=null parent=8V86F]
 + Torinia dorsuosa [SYNONYM SPECIES 301819:BHLLR nidx=null parent=8V86F]
Tortrix (Loxotaenia) musculana f. obsoletana
 - Tortrix (Loxotaenia) musculana f. obsoletana Strand, 1901 [SYNONYM FORM 300004:CC8SK nidx=null parent=B43GN]
 + Tortrix (Loxotaenia) musculana f. obsoletana Strand, 1901 [SYNONYM FORM 301819:CHJS3 nidx=null parent=B43GN]
Tortrix olivana
 - Tortrix olivana [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 300004:BRDXS nidx=null parent=92ZFM]
 + Tortrix olivana [Denis & Schiffermüller], 1775 [SYNONYM SPECIES 301819:98LQM nidx=null parent=92ZFM]
Trachycardium (Trachycardium)
 - Trachycardium (Trachycardium) [SYNONYM SUBGENUS 300004:BSC54 nidx=null parent=7PJQR]
 + Trachycardium (Trachycardium) Mörch, 1853 [SYNONYM SUBGENUS 301819:CGT84 nidx=null parent=7PJQR]
Trichocera brevis
 - Trichocera brevis Krzemińska, 2002 [SYNONYM SPECIES 300004:8FH6Z nidx=null parent=8FH5V]
 + Trichocera brevis Krzemińska, 2002 [SYNONYM SPECIES 301819:7CPZF nidx=null parent=8FH5V]
Trichocladius atriforceps
 - Trichocladius atriforceps Kieffer, 1924 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZXZ nidx=null]
 + Trichocladius atriforceps Kieffer, 1924 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYJG nidx=null]
Trichocladius sahorensis
 - Trichocladius sahorensis Kieffer, 1926 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZY3 nidx=null]
 + Trichocladius sahorensis Kieffer, 1926 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYQG nidx=null]
Trichocladius terricola
 - Trichocladius terricola Kieffer, 1919 [PROVISIONALLY_ACCEPTED SPECIES 300004:B3ZY4 nidx=null]
 + Trichocladius terricola Kieffer, 1919 [PROVISIONALLY_ACCEPTED SPECIES 301819:9JYQX nidx=null]
Trichodagmia spadicidorsum
 - Trichodagmia spadicidorsum Enderlein, 1934 [SYNONYM SPECIES 300004:8FHG9 nidx=null parent=8DZ3K]
 + Trichodagmia spadicidorsum Enderlein, 1934 [SYNONYM SPECIES 301819:58BB9 nidx=null parent=8DZ3K]
Trichoniscus albidus
 - Trichoniscus albidus Budde-Lund, 1879 [SYNONYM SPECIES 300004:BKQMW nidx=null parent=5F98M]
 + Trichoniscus albidus Budde-Lund, 1879 [SYNONYM SPECIES 301819:CHKV2 nidx=null parent=5F98M]
Trichopoda (Galactomyia) flavicornis
 - Trichopoda (Galactomyia) flavicornis Robineau-Desvoidy, 1830 [ACCEPTED SPECIES 300004:BZFS9 nidx=null]
 + Trichopoda (Galactomyia) flavicornis Robineau-Desvoidy, 1830 [ACCEPTED SPECIES 301819:CHJ3F nidx=null]
Triphleba brevicostalis
 - Triphleba brevicostalis Disney, 2018 [ACCEPTED SPECIES 300004:9HVP7 nidx=null]
 + Triphleba brevicostalis Disney, 2020 [ACCEPTED SPECIES 301819:CHJNF nidx=null]
Triplofusus papillosus
 - Triplofusus papillosus auct. [SYNONYM SPECIES 300004:CCCYN nidx=null parent=58YMM]
 + Triplofusus papillosus [SYNONYM SPECIES 301819:58YMN nidx=null parent=58YMM]
Triton antillarum
 - Triton antillarum A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:594QZ nidx=null parent=3HN5P]
 + Triton antillarum A. d'Orbigny, 1847 [SYNONYM SPECIES 301819:CHJT8 nidx=null parent=3HN5P]
Trochita calyptraeaformis
 - Trochita calyptraeaformis auct. [SYNONYM SPECIES 300004:CCDP3 nidx=null parent=59779]
 + Trochita calyptraeaformis [SYNONYM SPECIES 301819:5976T nidx=null parent=59779]
Trophonopsis carinatus hirtus
 - Trophonopsis carinatus hirtus Settepassi, 1977 [SYNONYM SUBSPECIES 300004:CGJCC nidx=null parent=4BZK5]
 + Trophonopsis carinatus hirtus Settepassi, 1977 [SYNONYM SUBSPECIES 301819:CHK3F nidx=null parent=4BZK5]
Trypanosyllis (Trypanobia) foliosa
 - Trypanosyllis (Trypanobia) foliosa Imajima, 2003 [ACCEPTED SPECIES 300004:CCFQZ nidx=null]
 + Trypanosyllis (Trypanobia) foliosa Imajima, 2003 [ACCEPTED SPECIES 301819:CHK89 nidx=null]
Tubulanus
 - Tubulanus Renier, 1804 [ACCEPTED GENUS 300004:84VHV nidx=null]
 + Tubulanus [Renier], [1804] [PROVISIONALLY_ACCEPTED GENUS 301819:CHKC4 nidx=null]
Turritella undulata
 - Turritella undulata Zieten, 1830 [SYNONYM SPECIES 300004:9ZQ2X nidx=null parent=9ZPFS]
 + Turritella undulata Zieten, 1832 [SYNONYM SPECIES 301819:7TJ4H nidx=null parent=7SV3D]
Tylodelphys glossoides
 - Tylodelphys glossoides (Dubois, 1928) Sudarikov, 19960 [ACCEPTED SPECIES 300004:B7MB2 nidx=null]
 + Tylodelphys glossoides (Dubois, 1928) Sudarikov, 1960 [ACCEPTED SPECIES 301819:CHKN6 nidx=null]
Typhlocyba pura
 - Typhlocyba pura Stål, 1858 [SYNONYM SPECIES 300004:8JHF4 nidx=null parent=3RGVQ]
 + Typhlocyba pura Stål, 1858 [SYNONYM SPECIES 301819:59W3W nidx=null parent=3RGVQ]
Typhlotanais (Typhlotanais) mananensis
 - Typhlotanais (Typhlotanais) mananensis Wallace, 1919 [SYNONYM SPECIES 300004:CGK97 nidx=null parent=4DHCP]
 + Typhlotanais (Typhlotanais) mananensis Wallace, 1919 [SYNONYM SPECIES 301819:CHKT4 nidx=null parent=4DHCP]
Unio (Elliptio) buxtoni
 - Unio (Elliptio) buxtoni B. H. Wright, 1897 [SYNONYM SPECIES 300004:CGKCS nidx=null parent=39BKC]
 + Unio (Elliptio) buxtoni B. H. Wright, 1897 [SYNONYM SPECIES 301819:CHKW5 nidx=null parent=39BKC]
Unio (Elliptio) congaraeus
 - Unio (Elliptio) congaraeus I. Lea, 1831 [SYNONYM SPECIES 300004:CGKCX nidx=null parent=39BJB]
 + Unio (Elliptio) congaraeus I. Lea, 1831 [SYNONYM SPECIES 301819:CHKW6 nidx=null parent=39BJB]
Unio (Elliptio) coruscus
 - Unio (Elliptio) coruscus A. Gould, 1856 [SYNONYM SPECIES 300004:CGKCY nidx=null parent=39BKC]
 + Unio (Elliptio) coruscus A. Gould, 1856 [SYNONYM SPECIES 301819:CHKW7 nidx=null parent=39BKC]
Unio (Elliptio) duttonianus
 - Unio (Elliptio) duttonianus I. Lea, 1841 [SYNONYM SPECIES 300004:CGKD6 nidx=null parent=6F4N8]
 + Unio (Elliptio) duttonianus I. Lea, 1841 [SYNONYM SPECIES 301819:CHKW8 nidx=null parent=6F4N8]
Unio (Elliptio) errans
 - Unio (Elliptio) errans I. Lea, 1857 [SYNONYM SPECIES 300004:CGKD7 nidx=null parent=39BJ9]
 + Unio (Elliptio) errans I. Lea, 1857 [SYNONYM SPECIES 301819:CHKW9 nidx=null parent=39BJ9]
Unio (Elliptio) folliculatus
 - Unio (Elliptio) folliculatus I. Lea, 1838 [SYNONYM SPECIES 300004:CGKD8 nidx=null parent=39BJV]
 + Unio (Elliptio) folliculatus I. Lea, 1838 [SYNONYM SPECIES 301819:CHKWB nidx=null parent=39BJV]
Unio (Elliptio) fraternus
 - Unio (Elliptio) fraternus I. Lea, 1852 [SYNONYM SPECIES 300004:CGKDC nidx=null parent=39BJY]
 + Unio (Elliptio) fraternus I. Lea, 1852 [SYNONYM SPECIES 301819:CHKWC nidx=null parent=39BJY]
Unio (Elliptio) fuscatus
 - Unio (Elliptio) fuscatus I. Lea, 1843 [SYNONYM SPECIES 300004:CGKDD nidx=null parent=39BL5]
 + Unio (Elliptio) fuscatus I. Lea, 1843 [SYNONYM SPECIES 301819:CHKWD nidx=null parent=39BL5]
Unio (Elliptio) geminus
 - Unio (Elliptio) geminus I. Lea, 1857 [SYNONYM SPECIES 300004:CGKDF nidx=null parent=39BJ9]
 + Unio (Elliptio) geminus I. Lea, 1857 [SYNONYM SPECIES 301819:CHKWF nidx=null parent=39BJ9]
Unio (Elliptio) hazelhurstianus
 - Unio (Elliptio) hazelhurstianus I. Lea, 1858 [SYNONYM SPECIES 300004:CGKDH nidx=null parent=6F4N8]
 + Unio (Elliptio) hazelhurstianus I. Lea, 1858 [SYNONYM SPECIES 301819:CHKWG nidx=null parent=6F4N8]
Unio (Elliptio) incrassatus
 - Unio (Elliptio) incrassatus I. Lea, 1840 [SYNONYM SPECIES 300004:C8L59 nidx=null parent=6F4MX]
 + Unio (Elliptio) incrassatus I. Lea, 1840 [SYNONYM SPECIES 301819:CHKWJ nidx=null parent=6F4MX]
Unio (Elliptio) inusitatis
 - Unio (Elliptio) inusitatis I. Lea, 1859 [SYNONYM SPECIES 300004:CFB4W nidx=null parent=39BK8]
 + Unio (Elliptio) inusitatis I. Lea, 1859 [SYNONYM SPECIES 301819:CHKWK nidx=null parent=39BK8]
Unio (Elliptio) jayensis
 - Unio (Elliptio) jayensis I. Lea, 1838 [SYNONYM SPECIES 300004:CFB4X nidx=null parent=39BKC]
 + Unio (Elliptio) jayensis I. Lea, 1838 [SYNONYM SPECIES 301819:CHKWL nidx=null parent=39BKC]
Unio (Elliptio) nigellus
 - Unio (Elliptio) nigellus I. Lea, 1852 [SYNONYM SPECIES 300004:CGKDS nidx=null parent=39BKX]
 + Unio (Elliptio) nigellus I. Lea, 1852 [SYNONYM SPECIES 301819:CHKWN nidx=null parent=39BKX]
Unio (Elliptio) plantii
 - Unio (Elliptio) plantii I. Lea, 1857 [SYNONYM SPECIES 300004:C8L5Z nidx=null parent=39BJZ]
 + Unio (Elliptio) plantii I. Lea, 1857 [SYNONYM SPECIES 301819:CHKWT nidx=null parent=39BJZ]
Unio (Elliptio) popeii
 - Unio (Elliptio) popeii I. Lea, 1857 [SYNONYM SPECIES 300004:CGKDX nidx=null parent=6VVSC]
 + Unio (Elliptio) popeii I. Lea, 1857 [SYNONYM SPECIES 301819:CHKWV nidx=null parent=6VVSC]
Unio (Elliptio) spissus
 - Unio (Elliptio) spissus I. Lea, 1859 [SYNONYM SPECIES 300004:CF7HQ nidx=null parent=39BJP]
 + Unio (Elliptio) spissus I. Lea, 1859 [SYNONYM SPECIES 301819:CHJJ9 nidx=null parent=39BJP]
Unio (Elliptio) tuomeyi
 - Unio (Elliptio) tuomeyi I. Lea, 1852 [SYNONYM SPECIES 300004:CGHD2 nidx=null parent=39BK9]
 + Unio (Elliptio) tuomeyi I. Lea, 1852 [SYNONYM SPECIES 301819:CHJJM nidx=null parent=39BK9]
Unio (Symphynota) alatus
 - Unio (Symphynota) alatus Say, 1817 [SYNONYM SPECIES 300004:C8L7X nidx=null parent=4M3D2]
 + Unio (Symphynota) alatus Say, 1817 [SYNONYM SPECIES 301819:CHKWY nidx=null parent=4M3D2]
Unio (Uniomerus) columbensis
 - Unio (Uniomerus) columbensis I. Lea, 1857 [SYNONYM SPECIES 300004:CFB5H nidx=null parent=7DKJY]
 + Unio (Uniomerus) columbensis I. Lea, 1857 [SYNONYM SPECIES 301819:CHKX3 nidx=null parent=7DKJY]
Unio (Uniomerus) tetralasmus manubius
 - Unio (Uniomerus) tetralasmus manubius A. Gould, 1855 [SYNONYM SUBSPECIES 300004:CGHCX nidx=null parent=7DKK7]
 + Unio (Uniomerus) tetralasmus manubius A. Gould, 1855 [SYNONYM SUBSPECIES 301819:CHJJJ nidx=null parent=7DKK7]
Unio diluvii
 - Unio diluvii A. d'Orbigny, 1843 [SYNONYM SPECIES 300004:8Z7S2 nidx=null parent=8Z67D]
 + Unio diluvii A. d'Orbigny, 1839 [SYNONYM SPECIES 301819:CHKX8 nidx=null parent=CH22Z]
Urophora
 - Urophora Robineau-Desvoidy, 1830 [ACCEPTED GENUS 300004:CCNJ7 nidx=null]
 + Urophora [ACCEPTED GENUS 301819:CGPD2 nidx=null]
Usia (Micrusia) forcipata
 - Usia (Micrusia) forcipata Brullé, 1833 [ACCEPTED SPECIES 300004:8FL5B nidx=null]
 + Usia (Micrusia) forcipata Brullé, 1833 [ACCEPTED SPECIES 301819:7F2WV nidx=null]
Usia (Usia) martini
 - Usia (Usia) martini François, 1969 [ACCEPTED SPECIES 300004:8FL6J nidx=null]
 + Usia (Usia) martini François, 1969 [ACCEPTED SPECIES 301819:7F2XC nidx=null]
Vaginula
 - Vaginula auct. [SYNONYM GENUS 300004:CC9X7 nidx=null parent=7PKLD]
 - Vaginula auct. [PROVISIONALLY_ACCEPTED GENUS 300004:CC9X8 nidx=null]
 + Vaginula [SYNONYM GENUS 301819:BGTFH nidx=null parent=7PKLD]
 + Vaginula [PROVISIONALLY_ACCEPTED GENUS 301819:BGTFJ nidx=null]
Vanicoro
 - Vanicoro [SYNONYM GENUS 300004:BGTGR nidx=null parent=7PKM4]
 + Vanicoro J. E. Gray, 1842 [SYNONYM GENUS 301819:CHK5Z nidx=null parent=7PKM4]
Vanikoro cuvieriana
 - Vanikoro cuvieriana (Récluz, 1843) [ACCEPTED SPECIES 300004:7FH32 nidx=null]
 + Vanikoro cuvieriana (Récluz, 1846) [ACCEPTED SPECIES 301819:CHK65 nidx=null]
Vanikoroia
 - Vanikoroia [SYNONYM GENUS 300004:C5QSG nidx=null parent=7PKM4]
 + Vanikoroia Martin, 1914 [SYNONYM GENUS 301819:CHK66 nidx=null parent=7PKM4]
Vasostoma spiratus
 - Vasostoma spiratus Wieser, 1954 [SYNONYM SPECIES 300004:C8N8C nidx=null parent=89C9M]
 + Vasostoma spiratus Wieser, 1954 [SYNONYM SPECIES 301819:CHK83 nidx=null parent=89C9M]
Vasticardium assimile assimile
 - Vasticardium assimile assimile (Reeve, 1844) [ACCEPTED SUBSPECIES 300004:7V434 nidx=null]
 + Vasticardium assimile assimile (Reeve, 1844) [SYNONYM SUBSPECIES 301819:5LQJD nidx=null parent=7FK7N]
Venus alvarezii
 - Venus alvarezii A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:BHN5F nidx=null parent=66B3W]
 + Venus alvarezii A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CHKB7 nidx=null parent=66B3W]
Venus portesiana
 - Venus portesiana A. d'Orbigny, 1842 [SYNONYM SPECIES 300004:7FMJG nidx=null parent=6PVC2]
 + Venus portesiana A. d'Orbigny, 1846 [SYNONYM SPECIES 301819:CHKBQ nidx=null parent=6PVC2]
Vitrina (Semilimax) intermedia
 - Vitrina (Semilimax) intermedia Reuss, 1849 [SYNONYM SPECIES 300004:CGKGT nidx=null parent=4G2MJ]
 + Vitrina (Semilimax) intermedia Reuss, 1849 [SYNONYM SPECIES 301819:CHKY7 nidx=null parent=4G2MJ]
Volvarina avenacea
 - Volvarina avenacea auct. [SYNONYM SPECIES 300004:CCF7K nidx=null parent=4N8HW]
 + Volvarina avenacea [SYNONYM SPECIES 301819:5BQDC nidx=null parent=4N8HW]
Volvarina biannulata
 - Volvarina biannulata auct. [SYNONYM SPECIES 300004:CCF7N nidx=null parent=7VBDB]
 + Volvarina biannulata [SYNONYM SPECIES 301819:BHNFH nidx=null parent=7VBDB]
Weinmannia microphylla
 - Weinmannia microphylla Ruiz & Pav. ex López [ACCEPTED SPECIES 300004:CGHTS nidx=null]
 + Weinmannia microphylla Ruiz & Pav. [AMBIGUOUS_SYNONYM SPECIES 301819:CHJSB nidx=null parent=5BWKJ]
 + Weinmannia microphylla Ruiz & Pav. ex López [ACCEPTED SPECIES 301819:CHJSC nidx=null]
Xenia faraunensis
 - Xenia faraunensis Verseveldt & Cohen, 1971 [SYNONYM SPECIES 300004:857GY nidx=null parent=85W8X]
 + Xenia faraunensis Verseveldt & Cohen, 1971 [SYNONYM SPECIES 301819:5C96Z nidx=null parent=85W8X]
Xiphidiola (Xiphidiola) concolor
 - Xiphidiola (Xiphidiola) concolor Bolívar, 1906 [ACCEPTED SPECIES 300004:BV3MM nidx=null]
 + Xiphidiola (Xiphidiola) concolor Bolívar, 1906 [ACCEPTED SPECIES 301819:7FXDX nidx=null]
Yoraperla japonica
 - Yoraperla japonica [SYNONYM SPECIES 300004:9J5KS nidx=null parent=5CSB3]
 + Yoraperla japonica (Uéno, 1929) [SYNONYM SPECIES 301819:CHKTB nidx=null parent=5CSB3]
Zamia
 - Zamia [ACCEPTED GENUS 300004:CFB7F nidx=null]
 + Zamia L. [ACCEPTED GENUS 301819:CHKYF nidx=null]
Zamia furfuracea var. trewii
 - Zamia furfuracea var. trewii Miq. [SYNONYM VARIETY 300004:5S5VQ nidx=null parent=5CVPT]
 + Zamia furfuracea var. trewii A.DC. [SYNONYM VARIETY 301819:CHKYS nidx=null parent=5CVPT]
Zamia pygmaea var. wrightii
 - Zamia pygmaea var. wrightii Miq. [SYNONYM VARIETY 300004:5S5W9 nidx=null parent=5CVRY]
 + Zamia pygmaea var. wrightii A.DC. [SYNONYM VARIETY 301819:CHKZG nidx=null parent=5CVRY]
Zamia skinneri
 - Zamia skinneri Warsz. ex A.Dietr. [ACCEPTED SPECIES 300004:5CVS7 nidx=null]
 + Zamia skinneri Warsz. [ACCEPTED SPECIES 301819:CHKZK nidx=null]
Zamiaceae
 - Zamiaceae [ACCEPTED FAMILY 300004:HZK nidx=null]
 + Zamiaceae Horan. [ACCEPTED FAMILY 301819:CHKVQ nidx=null]
Zetamphistoma compactum
 - Zetamphistoma compactum Thatcher & Jégu, 1996 [SYNONYM SPECIES 300004:CCG2J nidx=null parent=8484F]
 + Zetamphistoma compactum Thatcher & Jégu, 1996 [SYNONYM SPECIES 301819:CHKZQ nidx=null parent=8484F]
Zirphaea
 - Zirphaea auct. [SYNONYM GENUS 300004:CCG4R nidx=null parent=7PLFF]
 + Zirphaea [SYNONYM GENUS 301819:BGV2Y nidx=null parent=7PLFF]
Zygaena cingulata
 - Zygaena cingulata Holik, 1936 [SYNONYM SPECIES 300004:CFBBG nidx=null parent=9448G]
 + Zygaena cingulata Reiss, 1935 [SYNONYM SPECIES 301819:CHL2D nidx=null parent=98VGQ]
 + Zygaena cingulata Reiss, 1935 [SYNONYM SPECIES 301819:CHL2F nidx=null parent=944GH]
 + Zygaena cingulata Burgeff, 1906 [AMBIGUOUS_SYNONYM SPECIES 301819:CHL2G nidx=null parent=93S9X]
 + Zygaena cingulata Burgeff, 1914 [AMBIGUOUS_SYNONYM SPECIES 301819:CHL2H nidx=null parent=93SHR]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 301819:CHL2J nidx=null parent=9448M]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 301819:CHL2K nidx=null parent=9447W]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 301819:CHL2L nidx=null parent=944MB]
 + Zygaena cingulata Burgeff, 1914 [SYNONYM SPECIES 301819:CHL2M nidx=null parent=944K2]
 + Zygaena cingulata Burgeff, 1926 [SYNONYM SPECIES 301819:CHL2N nidx=null parent=94484]
 + Zygaena cingulata Burgeff, 1926 [SYNONYM SPECIES 301819:CHL2P nidx=null parent=944CL]
 + Zygaena cingulata Burgeff, 1926 [SYNONYM SPECIES 301819:CHL2Q nidx=null parent=94FB3]
 + Zygaena cingulata Dziurzynski, 1908 [SYNONYM SPECIES 301819:CHL2R nidx=null parent=944P2]
 + Zygaena cingulata Dziurzynski, 1908 [SYNONYM SPECIES 301819:CHL2S nidx=null parent=9446S]
 + Zygaena cingulata Holik & Reiss, 1932 [SYNONYM SPECIES 301819:CHL2T nidx=null parent=94GCY]
 + Zygaena cingulata Holik & Sheljuzhko, 1956 [AMBIGUOUS_SYNONYM SPECIES 301819:CHL2V nidx=null parent=5D9SR]
 + Zygaena cingulata Holik & Sheljuzhko, 1956 [AMBIGUOUS_SYNONYM SPECIES 301819:CHL2W nidx=null parent=93SDL]
 + Zygaena cingulata Holik, 1935 [SYNONYM SPECIES 301819:CHL2X nidx=null parent=9447W]
 + Zygaena cingulata Holik, 1936 [SYNONYM SPECIES 301819:CHL2Y nidx=null parent=9448G]
 + Zygaena cingulata Reiss, 1964 [AMBIGUOUS_SYNONYM SPECIES 301819:CHL2Z nidx=null parent=93SHD]
 + Zygaena cingulata Turati, 1923 [SYNONYM SPECIES 301819:CHL32 nidx=null parent=944P9]
 + Zygaena cingulata Turati, 1923 [SYNONYM SPECIES 301819:CHL33 nidx=null parent=944MC]
 + Zygaena cingulata Vorbrodt, 1913 [SYNONYM SPECIES 301819:CHL34 nidx=null parent=944PD]
Zygaena totarubra
 - Zygaena totarubra Holik & Sheljuzhko, 1955 [AMBIGUOUS_SYNONYM SPECIES 300004:CGKLS nidx=null parent=98PXN]
 + Zygaena totarubra Holik & Sheljuzhko, 1955 [AMBIGUOUS_SYNONYM SPECIES 301819:CHL4V nidx=null parent=98PXN]
Zygina (Zygina)
 - Zygina (Zygina) Fieber, 1866 [ACCEPTED SUBGENUS 300004:9JPD6 nidx=null]
 + Zygina (Zygina) Fieber, 1866 [ACCEPTED SUBGENUS 301819:CH2RG nidx=null]