taxonID	type	description	language	source
0F5587DCFFEDFF8A5FDAFCDCE5FB201E.taxon	description	(Figs 1 A, C – D, 12 A)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEDFF8A5FDAFCDCE5FB201E.taxon	materials_examined	Type locality. China, Guangdong Province, Shaoguan, Renhua County, Danxiashan Mt., ca. 25.0347 N, 113.7407 E, 100 m. Type material. Holotype ♂ (SYSU), labelled: “ ŨAE ḂOiẌffiḩẇh / BDƜ / 25.0347 N, 113.7407 E / 98.0 m, 20. ix. 2021 / RDZƛ [p] // CHINA: Guangdong Province / Shaoguan, Renhua County / Danxiashan Mt. / 25.0347 N, 113.7407 E / 98.0 m, 20. ix. 2021 / Zuqi Mai leg. [p] // HOLOTYPE / PLATYNECTES / maizuqii sp. nov. / Jiang, Jia & Šťastný det. 2022 [red label, p] ”. Paratypes: 1 ♂, same label data as holotype (SYSU); 2 ♀, labelled: “ ŨAEBDƜ / 2008.5.23 / NJΦλ ： AE ṂÄ [p] // CHINA: Guangdong Province / Danxiashan Mt. / 23. v. 2008 / Fenglong Jia leg. [p] ” (SYSU). All paratypes with the respective red printed label.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEDFF8A5FDAFCDCE5FB201E.taxon	description	Description of holotype. Habitus (Fig. 1 A) oblong-oval, with continuous outline, broadest before middle of elytral length, moderately convex. Dorsal surface slightly matt due to distinct reticulation. Colouration. Head yellow, with black triangular spots on frons between eyes; pronotum black with anterior angles and lateral margins yellow, anterior margin and transverse medial band reddish-brown; elytra black with yellow transverse basal fascia and eight longitudinal vittae, sublaterally behind middle of elytral length and near apex with irregular yellow spots; appendages reddish-brown; ventral side black with reddish-brown spot on each side of abdominal ventrites II – IV. Head. Moderately broad, width ca. 0.6 × that of pronotum. Anterior margin of clypeus semicircular, with pair of sublateral foveae. Antenna with antennomeres long and slender. Eyes emarginate anterolaterally. Punctation double; several coarse setigerous punctures present in fronto-clypeal grooves and in depressions along inner margin of eyes; fine punctures distributed sparsely and irregularly on head surface, mainly at intersections of meshes. Reticulation deeply impressed consisting of heterogeneous, somewhat elongate, polygonal meshes; most meshes closed, usually with several micropunctures inside. Pronotum. Transverse (width / length ratio = 3.5), broadest between posterior angles. Sides moderately curved, with distinct bead. Anterior margin nearly straight, posterior margin slightly sinuate. Punctation double, similar to that of head; rows of coarse setigerous punctures present along anterior margin and lateral parts of basal margin; fine punctures distributed irregularly on pronotal surface, mainly at intersections of reticulation. Reticulation similar to that of head, on disc meshes larger and less impressed, sometimes not closed, near sides becoming much smaller and more deeply impressed. Centre of disc with small indistinct longitudinal furrow. Elytra. Base of elytra as broad as pronotal base; lateral margins of elytra moderately curved. Transverse yellow fascia present at base of elytra, interrupted only sublaterally. Eight yellow longitudinal vittae present on each elytron: vitta 1 almost continuous, vittae 2 – 7 formed by series of dots, vitta 8 interrupted medially, vitta 5 bifurcate anteriorly; vittae 1 – 5 and 8 beginning from transverse basal fascia and ending at apex, vittae 6 and 7 beginning slightly behind transverse basal fascia and ending at apex. Punctation double; coarse setigerous punctures present along vittae 1, 3, 5, 7 and lateral margins of elytra; fine punctures distributed irregularly over elytral surface, mainly at intersections of reticulation. Reticulation well impressed, similar to that of head and pronotum, meshes usually with several micropunctures inside, sometimes not closed. Legs. Meso- and metafemora with tuft of spiniform setae along ventral margin of anteroapical angle. Pro- and mesotibia broadened, club shaped, densely punctured with spinigerous punctures over ventral surface. Metatibia with two lines of coarse spinigerous punctures on ventral surface. Pro- and mesotarsomeres 1 – 3 moderately broadened, with adhesive setae on ventral side; claws simple. Metatarsal claws subequal; anterior claw slightly shorter than posterior one. Surface of legs with distinct reticulation consisting of elongate meshes. Ventral side. Anterior margin of prosternum sinuate, obtusely keeled medially. Prosternal process shortly lanceolate, in cross-section convex, with distinct lateral bead in basal half, apex pointed; surface with irregular sparse double punctation. Medial part of metaventrite without microsculpture, shiny, with sparse fine punctation; lateral parts of metaventrite (“ metasternal wings ”) tongue-shaped, slender, reaching lateral margins. Metacoxal lines distinct, well impressed, subparallel anteriorly, divergent posteriorly. Metacoxal plates covered with shallow transverse wrinkles; reticulation consisting of polygonal meshes, punctation consisting of sparse fine punctures. Conjoint posterior margin of metacoxal processes slightly concave. Abdominal reticulation consisting of elongate polygonal meshes, longitudinal on ventrite I, oblique on ventrite II and transverse on ventrites III – V; ventrites III – V additionally with numerous fine transverse wrinkles medially. Punctation double; ventrites III – V with setigerous punctures arranged sparsely in transverse line in medial part and with one coarser setigerous puncture presents in middle; fine punctures distributed sparsely and irregularly on ventrite surface. Abdominal ventrite VI with sublateral rugose area comprising nearly 10 deep longitudinal grooves on each side; reticulation present only baso-laterally; punctation double, coarse setigerous punctures present along posterior margin, fine punctures distributed densely on middle part. Male genitalia. Median lobe of aedeagus in lateral view strongly curved; with distinct setae subapically along both ventral and dorsal margins; basal piece with distinct protuberance subapically on dorsal side; apical region moderately elongate, apex rounded (Fig. 1 C). Parameres slender, with dense setae dorsally, with distinct subbasal tooth on ventral side (Fig. 1 D). Female. Identical to male in habitus. Meshes of dorsal surface reticulation more deeply impressed and longitudinally stretched, reticulation postero-laterally to eyes densely consists of elongate closed meshes, surface appearing more matt. Abdominal ventrite VI without deep longitudinal grooves sublaterally. Pro- and mesotibia less broadened; pro- and mesotarsomeres not broadened, without adhesive setae ventrally. Variability. Sublaterally behind middle of elytral length sometimes without irregular yellow spots. Measurements. TL: 6.3 – 6.5 mm (mean value: 6.4 ± 0.1 mm); holotype: 6.4 mm. TL-h: 5.7 – 5.9 mm (mean value: 5.8 ± 0.1 mm); holotype: 5.8 mm. MW: 3.8 – 4.0 mm (mean value: 3.9 ± 0.1 mm); holotype: 3.8 mm.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEDFF8A5FDAFCDCE5FB201E.taxon	diagnosis	Differential diagnosis. The new species is similar to P. nanlingensis Šťastný. Some specimens of P. maizuqii sp. nov. with irregular yellow spots sublaterally behind middle of elytral length, but this is not stable. The two species can be reliably distinguished by the shape of the median lobe: apical region in lateral view almost of even width in P. maizuqii sp. nov., but slightly broadened in P. nanlingensis. Collection details. The two male specimens were collected among crevices between stones in a rainwater ditch alongside a mountain road.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEDFF8A5FDAFCDCE5FB201E.taxon	etymology	Etymology. The species is dedicated to its collector, Zu-qi Mai (SYSU), a specialist of water scavenger beetles (Hydrophilidae). The species name is a noun in the genitive singular.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEDFF8A5FDAFCDCE5FB201E.taxon	distribution	Distribution. So far known only from the type locality in Danxiashan Mt., northern Guangdong, China (Fig. 12 A).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFECFF8C5FDAF8A9E26925EB.taxon	description	(Figs 1 B, E – F, 9 D, 12 B)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFECFF8C5FDAF8A9E26925EB.taxon	materials_examined	Type locality. China, Yunnan Province, Lvchun County, Huanglianshan Reservoir, ca. 22.8898 N, 102.2952 E, 1720 m. Type material. Holotype ♂ (SYSU), labelled: “ ř 南 ḂữƀhĦḖƜṁw / 22.8898 N, 102.2952 E / 1717.3 m, 2021. IV. 30 / ƃfflDz ， KflM ， RDZƛ ， ĦÍ Ṯ [p] // CHINA: Yunnan Province / Lvchun County / Huanglianshan Reservoir / 22.8898 N, 102.2952 E / 1717.3 m, 30. iv. 2021 / Z. Jiang, Z. Yang, Z. Mai & / B. Huang leg. [p] // HOLOTYPE / PLATYNECTES / pangu sp. nov. / Jiang, Jia & Šťastný det. 2022 [red label, p] ”. Paratypes: 18 ♂, 5 ♀, same label data as holotype and with respective paratype labels (SYSU).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFECFF8C5FDAF8A9E26925EB.taxon	description	Description of male holotype. Habitus (Fig. 1 B) oblong-oval, with continuous outline, broadest before middle of elytral length, moderately convex. Dorsal surface slightly matt due to distinct reticulation. Colouration. Head orange-brown, with black triangular spots on frons between eyes, antero-lateral part to eyes and vertex reddish-brown; pronotum black with anterior angles and lateral margins orange-brown, anterior margin and transverse medial band reddish-brown; elytra black with yellow transverse basal fascia and with eight longitudinal vittae; appendages reddish-brown; ventral side black with reddish-brown spot on each side of abdominal ventrites II – IV. Head. Moderately broad, ca. 0.65 × width of pronotum. Anterior margin of clypeus semicircular, with pair of sublateral foveae. Antenna with antennomeres long and slender. Eyes emarginate anterolaterally. Punctation double; several coarse setigerous punctures present in fronto-clypeal grooves and in depressions along inner margin of eyes; fine punctures distributed sparsely and irregularly on head surface, mainly at intersections of reticulation. Reticulation deeply impressed consisting of heterogeneous, somewhat elongate, polygonal meshes; most meshes closed, usually with several micropunctures inside. Pronotum. Transverse (width / length ratio = 3.5), broadest between posterior angles. Sides moderately curved, with distinct bead. Anterior margin nearly straight, posterior margin slightly sinuate. Punctation double, similar to that of head; rows of coarse setigerous punctures present along anterior margin and lateral parts of basal margin; fine punctures distributed irregularly on pronotal surface, mainly at intersections of meshes. Reticulation similar to that of head, on disc meshes larger and less impressed, sometimes not closed, near sides becoming much smaller and more deeply impressed. Centre of disc with small indistinct longitudinal furrow. Elytra. Base of elytra as broad as pronotal base; lateral margins of elytra moderately curved. Yellow transverse fascia presents at base of elytra, interrupted only sublaterally. Eight yellow longitudinal vittae present on each elytron: vitta 1 almost continuous, vittae 2 – 7 formed by series of dots, vitta 8 continuous, vitta 5 bifurcate anteriorly; all vittae beginning at transverse basal fascia and ending at apex. Punctation double; coarse setigerous punctures present along vittae 1, 3, 5, 7 and lateral margins of elytra; fine punctures distributed irregularly over elytral surface, mainly at intersections of reticulation. Reticulation well impressed, similar to that of head and pronotum, meshes usually with several micropunctures inside, sometimes not closed. Legs. Meso- and metafemora with tuft of spiniform setae along ventral margin of anteroapical angle. Pro- and mesotibia broadened, club shaped, densely punctured with spinigerous punctures over ventral surface. Metatibia with two lines of coarse spinigerous punctures on ventral surface. Pro- and mesotarsomeres 1 – 3 moderately broadened, with adhesive setae on ventral side; claws simple. Metatarsal claws subequal; anterior claw slightly shorter than posterior one. Surface of legs with distinct reticulation consisting of elongate meshes. Ventral side. Anterior margin of prosternum sinuate anteriorly, obtusely keeled medially. Prosternal process shortly lanceolate, in cross-section convex, with distinct lateral bead in basal half, apex pointed; surface with irregular sparse double punctation. Medial part of metaventrite without microsculpture, shiny, with sparse fine punctation; lateral parts of metaventrite (“ metasternal wings ”) tongue-shaped, slender, reaching lateral margins. Metacoxal lines distinct, well impressed, subparallel anteriorly, divergent posteriorly. Metacoxal plates covered with shallow transverse wrinkles; reticulation consisting of polygonal meshes, punctation consisting of sparse fine punctures. Conjoint posterior margin of metacoxal processes slightly concave. Abdominal reticulation consisting of elongate polygonal meshes, longitudinal on ventrites I, oblique on ventrite II and transverse on ventrites III – V; ventrites III – V additionally with numerous fine transverse wrinkles medially. Punctation double; ventrites III – V with setigerous punctures arranged sparsely in transverse line in medial part and with one coarser setigerous puncture presents in the middle; fine punctures distributed sparsely and irregularly on ventrite surface. Abdominal ventrite VI with sublateral rugose area comprising more than 10 deep longitudinal grooves on each side; reticulation present only baso-laterally; punctation double, coarse setigerous punctures present along posterior margin, fine punctures distributed densely on middle part. Male genitalia. Median lobe of aedeagus in lateral view strongly curved; strongly broadened in apical fifth, with distinct setae subapically along both ventral and dorsal margins; apex rounded, bevelled on both dorsal and ventral sides (Fig. 1 E). Parameres slender, with dense setae dorsally, with distinct subbasal tooth on ventral side (Fig. 1 F). Female. Identical to male in habitus. Meshes of dorsal surface reticulation more deeply impressed and longitudinally stretched; in some specimens reticulation consists of extremely dense meshes, all meshes closed, elongate mainly on elytra; surface appearing more matt. Abdominal ventrite VI without deep longitudinal grooves sublaterally. Pro- and mesotibia less broadened; pro- and mesotarsomeres not broadened, without adhesive setae ventrally. Variability. All specimens of the type series are rather uniform, being variable in body size. Ventrite II sometimes without reddish-brown spot on each side. Measurements. TL: 7.3 – 8.2 mm (mean value: 7.8 ± 0.1 mm); holotype: 7.8 mm. TL-h: 6.6 – 7.5 mm (mean value: 7.1 ± 0.1 mm); holotype: 7.2 mm. MW: 4.2 – 4.8 mm (mean value: 4.5 ± 0.1 mm); holotype: 4.6 mm.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFECFF8C5FDAF8A9E26925EB.taxon	diagnosis	Differential diagnosis. The new species can be easily distinguished from other Chinese Platynectes by its large size. In terms of habitus, P. pangu sp. nov. is similar to another large species P. njai Brancucci, 2008 from Laos; however the shape of median lobe is distinctive: in both species, strongly broadened in apical fifth, but with apex widely rounded (see Brancucci 2008, Figs 2 – 3) in P. njai and rounded but bevelled on both dorsal and ventral sides in P. pangu sp. nov.. Collection details. Except for one specimen collected by light trap, all other type specimens were collected in a puddle on the bottom of spillway of the Huanglianshan reservoir (Fig. 9 D).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFECFF8C5FDAF8A9E26925EB.taxon	etymology	Etymology. The species name “ pangu ” refers to a giant in ancient Chinese mythology, representing the large size of the species of subgenus Gueorguievtes Vazirani, 1976. The species name is a noun standing in apposition.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFECFF8C5FDAF8A9E26925EB.taxon	distribution	Distribution. So far known only from the type locality in Huanglianshan Mt., southern Yunnan, China (Fig. 12 B). Notes. Brancucci (2008) described a large-sized species P. njai from Laos. He was pretty sure that the two large female specimens from Yunnan (Naturhistorisches Museum Wien) cited by Nilsson (1998) were not conspecific with P. njai. According to the information provided by Nilsson (1998) and Šťastný (2003), these two females probably belong to P. pangu sp. nov.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEAFF8C5FDAFE45E337206D.taxon	description	(Figs 2 A, 6 A – B, 10 A)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEAFF8C5FDAFE45E337206D.taxon	materials_examined	Type locality. “ China, Taiwan, Naka-Onsen ”. Type material. Holotype ♂, deposited in EUMJ. Material studied. CHINA: Taiwan: 3 ♂, “ Taiwan: Kaohsiung Weijin Bridge 22 - VIII- 1995 leg. L. J. Wang / Platynectes babai Satô, 1982 det. L. J. Wang 1995 ” (JSCL). Notes. Habitus and male genitalia are given in Figs 2 A and 6 A – B. Collection details. The specimens were collected in stagnant (usually shallow) water pools in the forests at altitude from 750 to 2000 meters, sometimes were collected at light traps (Liu 2020).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEAFF8C5FDAFE45E337206D.taxon	distribution	Distribution. Only known from Taiwan, China (Fig. 10 A).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEAFF8C5FDAF878E39723B6.taxon	description	(Figs 2 B, 6 C – D, 8 A, 10 A)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEAFF8C5FDAF878E39723B6.taxon	materials_examined	Type locality. “ China, Fujian Province, Nanping Prefecture, Wuyishan Mts., Tongmu – Sangang vill. ”, ca. 27 ° 45.0 ′ N, 117 ° 40.7 ′ E, 720 m. Type material. Holotype ♂, deposited in IZCAS. Material studied. CHINA: Jiangxi: 1 ♂, Shangrao, Sanqingshan Mt., 15 - 20. iv. 2007, F. Jia leg. (SYSU); Zhejiang: 5 ♂, 10 ♀, Quzhou, Qujiang distr., Yaowangshan Mt., Shennong Waterfall, 28.7632 N, 118.9731 E, 340 m, 24. viii. 2021, Z. Jiang & X. Ye leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 2 B and 6 C – D. Collection details. In Yaowangshan Mt. (Zhejiang), Platynectes davidorum was collected during the day under mosses on wet rock, and at night in crevice or surface of rock covered with water film near waterfall (Fig. 8 A).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFEAFF8C5FDAF878E39723B6.taxon	distribution	Distribution. Eastern China (Fujian, Jiangxi, Zhejiang) (Fig. 10 A). First record from Jiangxi province. Notes. Platynectes davidorum seems to be strictly hygropetric, all specimens examined and also the type material (Hájek et al. 2019) were found in water films on rock surface. The strongly convex body and short appendages of the adults are likely adaptive features associated with this hygropetric lifestyle (Hájek et al. 2019). Besides this, another hygropetric species Hydrotrupes chinensis Nilsson, 2003, collected together with P. davidorum in Yaowangshan Mt. (Zhejiang), also displays a strongly convex body and short appendages, and furthermore absence of natatory setae on legs. These characters reflect adaptation to life on wet rock walls and limited ability to swim. Although Hydrotrupes palpalis Sharp, 1882 from North America has been shown capable of swimming (Hering 1998), individuals of this species often stay on rock surface within water films (Larson et al. 2000). The presence of natatory setae on the legs of P. davidorum may suggest that this species retains an ability to swim, as has been shown for the well-known North American hygropetric Hydrotrupes palpalis.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE9FF8F5FDAFC94E28723AB.taxon	description	(Figs 2 C – D, 3 A, 6 E – I, 8 B – C, 10 B)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE9FF8F5FDAFC94E28723AB.taxon	materials_examined	Type locality. “ Japan ” (possibly mislabelled as never confirmed to occur in Japan). Type material. Syntype, deposited in BMNH. Material examined. CHINA: Guangdong: 4 ♂, 1 ♀, Zhaoqing, Dinghu, 19. vi. 1958, C. Li leg. (SYSU); 7 ♂, 12 ♀, Dinghushan Mt., 23. vii. 1964, T. Peng leg. (SYSU); 4 ♂, 4 ♀, Danxiashan Mt., 23. v. 2008, F. Jia leg. (SYSU); 3 ♂, 4 ♀, Danxiashan Mt., Zhanglaofeng, 10. vi. 2011, F. Jia leg. (SYSU); 1 ♀, Danxiashan Mt., Yangyuanshan, 10. vi. 2011, F. Jia leg. (SYSU); 7 ♂, 11 ♀, Danxiashan Mt., Jinshi, puddle under rock wall, 11. vi. 2011, F. Jia leg. (SYSU); 1 ♂, 1 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt., Feishuitan, 23.1754 N, 112.5415 E, 100 m, 2. iv. 2021, Z. Jiang leg. (SYSU); 4 ♂, 5 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt., Feiqianqiao, 23.1748 N, 112.5385 E, 195 m, 3. iv. 2021, Z. Jiang leg. (SYSU); 2 ♂, 2 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt., Dizhi management station, 23.1609 N, 112.5323 E, 90 m, 11. vii. 2021, Z. Jiang, Z. Mai & Z. Liang leg. (SYSU); 2 ♂, 1 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt., Qingyunsi management station, 23.1736 N, 112.5361 E, 250 m, 12. vii. 2021, Z. Jiang, Z. Mai & Z. Liang leg. (SYSU); 1 ♂, Zhaoqing, Dinghu distr., Dinghushan Mt., Qingyunsi management station, 23.1732 N, 112.5354 E, 260 m, 17. x. 2021, Z. Jiang, Z. Mai & W. Xie leg. (SYSU); 3 ♂, 2 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt., Feiqianqiao-Qingyunsi, 23.1748 N, 112.5385 E, 195 m, 15. iii. 2022, Z. Jiang & Z. Mai leg. (SYSU); 2 ♂, Zhaoqing, Dinghu distr., Dinghushan Mt., Qingyunsi management station, 23.1732 N, 112.5354 E, 260 m, 15. iii. 2022, Z. Jiang & Z. Mai leg. (SYSU); 1 ♀, Zhaoqing, Dinghu distr., Dinghushan Mt., Tingquan Stone Carving, 23.1730 N, 112.5434 E, 60 m, 15. iii. 2022, Z. Jiang & Z. Mai leg. (SYSU); Guangxi: 3 ♂, 5 ♀, Guilin, Longsheng County, Huaping Nature Reserve, 25.6239 N, 109.9196 E, 820 m, 22. viii. 2020, day, Z. Jiang leg. (SYSU); 1 ♂, Guilin, Ziyuan County, Maoershan Mt., Huilong Tmple, 25.9125 N, 110.4656 E, 1560 m, 30. viii. 2020, day, Z. Jiang leg. (SYSU); 7 ♂, 3 ♀, Guilin, Xingan County, Maoershan Mt., Huilong Tmple, 25 ° 54 ′ 27 ″ N, 110 ° 28 ′ 3 ″ E, 1070 m, 2. ix. 2020, Z. Yang leg. (SYSU); Hunan: 3 ♂, 1 ♀, Yongzhou, Jiangyong County, Dupangling, Shangmuyuan, 25.3850 N, 111.2932 E, 320 m, 2. ix. 2020, night & light trap, Z. Jiang leg. (SYSU); 3 ♂, Yiyang, Anhua County, Meicheng Town, Yunhe Village, 28. ii. 2022, H. Mao leg. (SYSU); Jiangxi: 3 ♂, 3 ♀, Sanqingshan Mt., 15. viii. 2006, F. Jia & H. Chen leg. (SYSU); 4 ♂, 8 ♀, Jinggangshan Mt., Dabali, 28. iv. 2011, S. Zhao leg. (SYSU); Shaanxi: 1 ♂, 1 ♀, Huashan Mt., 24. viii. 1984, Z. Huang leg. (SYSU); Zhejiang: 1 ♂, Quzhou, Qujiang distr., Caojiang Line (near Mingguo Temple), 29.1725 N, 118.9054 E, 240 m, 14. iii. 2020, Z. Jiang leg. (SYSU); 7 ♂, 4 ♀, Quzhou, Jiangshan, Jinjia, 28.8734 N, 118.6985 E, 180 m, 20. iv. 2020, Z. Jiang leg. (SYSU); 5 ♂, 6 ♀, Quzhou, Qujiang distr., Chacao, 29.2158 N, 118.8261 E, 455 m, 29. iv. 2020, Z. Jiang leg. (SYSU); 3 ♂, 10 ♀, Quzhou, Qujiang distr., Liuchun Lake, Taoyuanjian, 28.7425 N, 119.0389 E, 780 m, 3. v. 2020, Z. Jiang & X. Ye leg. (SYSU); 4 ♂, 4 ♀, Quzhou, Changshan County, Tianpu Village, 29.0727 N, 118.6930 E, 760 m, 24. vi. 2020, Z. Jiang & X. Ye leg. (SYSU); 1 ♂, 1 ♀, Quzhou, Kaihua County, Gutianshan Nature Reserve, 29.2499 N, 118.1402 E, 695 m, 20. ii. 2021, Z. Jiang & X. Ye leg. (SYSU); 2 ♂, 1 ♀, Quzhou, Qujiang distr., Yaowangshan Mt., Shennong Waterfall, 28.7632 N, 118.9731 E, 340 m, 24. viii. 2021, Z. Jiang & X. Ye leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 2 C – D, 3 A and 6 E – I. Collection details. In Zhejiang, the specimens were collected together with P. gemellatus among decaying leaves in a stream within the Gutianshan Nature Reserve (Fig. 8 B) and in a puddle at the bottom of a rock wall covered with a film of seeping water, near Tianpu Village (Fig. 8 C).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE9FF8F5FDAFC94E28723AB.taxon	distribution	Distribution. Central and southeastern China (Anhui, Fujian, Guangdong, Guizhou, Guangxi, Hunan, Jiangxi, Shaanxi, Shanxi, Zhejiang) (Fig. 10 B). First record from Guangxi Zhuang Autonomous Region. Notes. Platynectes dissimilis exhibits highly variable elytral pattern. Examined specimens of P. dissimilis from Zhejiang and Sanqingshan Mt. (Jiangxi) had the elytral yellow vittae absent from the basal third of the elytra (Fig. 3 A), two specimens from Shaanxi and a single specimen from Anhua County (Hunan) had the elytral yellow vittae indistinct only basally (Fig. 2 D), whereas other specimens examined from south China were fully coloured (Fig. 2 C). Since specimens we checked from southern areas (Guangdong, Guangxi and south Hunan) are more fully coloured, this variation might be related to temperature.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE8FF815FDAFC94E2512626.taxon	description	(Figs 3 B – C, 6 J – O, 8 B, D, 11 A)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE8FF815FDAFC94E2512626.taxon	materials_examined	Type locality. “ China, Hong Kong ”. Type material. Holotype ♂, deposited in NHMW. Material examined. CHINA: Guangdong: 1 ♂, 2 ♀, Fengkai, Heishiding, 10. iv. 1985, W. Wu leg. (SYSU); 3 ♀, Fengkai, Heishiding, 2. v. 2011, F. Jia leg. (SYSU); 2 ♀, Lian County, Dadongshan Mt., 7. vii. 1995, F. Jia & Y. Liu leg. (SYSU); 1 ♂, 4 ♀, Lian County, Dadongshan Mt., 22. vi. 2004, X. Fang leg. (SYSU); 1 ♂, Nanling, Dadongshan Mt., vi. 2004, F. Jia leg. (SYSU); 2 ♂, 1 ♀, Lian County, Dadongshan Mt., 6. vii. 2008, F. Jia leg. (SYSU); 2 ♀, Nanling, Dadongshan Mt., 23 - 27. vi. 2009, F. Jia leg. (SYSU); 3 ♂, Shaoguan, Chebaling, Fanchifeng, 24 ° 42 ′ 9 ″ N, 114 ° 11 ′ 10 ″ E, 485 m, 20. viii. 2020, Z. Yang leg. (SYSU); 4 ♂, 5 ♀, Shaoguan, Chebaling Nature Reserve, 24 ° 43 ′ 6 ″ N, 114 ° 15 ′ 8 ″ E, 450 m, 21. viii. 2020, Z. Yang leg. (SYSU); 2 ♂, 2 ♀, Huizhou, Longmen County, Nankunshan Reserve, 23.6349 N, 113.8409 E, 550 m, 23. iii. 2021, Z. Jiang leg. (SYSU); 5 ♂, 3 ♀, Huizhou, Longmen County, Nankunshan Mt., Gaoshanbieshu, 23.6249 N, 113.8709 E, 640 m, 7 - 9. vii. 2021, Z. Jiang, Z. Mai & Z. Liang leg. (SYSU); 3 ♂, 3 ♀, Guangzhou, Conghua distr., Liuxihe, Wuzhishan Scenic Spot, 23.7339 N, 113.8075 E, 295 m, 26. iii. 2021, Z. Jiang leg. (SYSU); 3 ♂, 4 ♀, Ruyuan, Nanling, mid-mountain protection station, 1000 m, 23. viii. 2010, S. Zhao leg. (SYSU); 3 ♂, 1 ♀, Shaoguan, Ruyuan County, Nanling, Ruyang Management Station, 24.9281 N, 113.0177 E, 980 m, 2. xi. 2021, Z. Mai leg. (SYSU); 1 ♂, 1 ♀, Shaoguan, Ruyuan County, Nanling, Laopengyidui, 24.9304 N, 113.0131 E, 1050 m, 3. xi. 2021, Z. Mai leg. (SYSU); 3 ♂, Shaoguan, Ruyuan County, Nanling, 24.9252 N, 112.9800 E, 1600 m, 4. xi. 2021, Z. Mai leg. (SYSU); Hongkong: 1 ♂, Dabujiao (Hexi), 22 ° 25.697 ′ N, 114 ° 10.834 ′ E, 145 m, 10. iv. 2014, F. Jia, W. Xie & J. Chen leg. (SYSU); 1 ♂, 1 ♀, Rongshuao, 22 ° 32.646 ′ N, 114 ° 14.926 ′ E, 10 m, 11. iv. 2014, F. Jia, W. Xie & J. Chen leg. (SYSU); 2 ♂, 1 ♀, Fengkeng, 22 ° 31.695 ′ N, 114 ° 13.450 ′ E, 13 m, 9. vi. 2014, F. Jia, W. Xie & J. Chen leg. (SYSU); 1 ♂, Rongshuao, 22 ° 25.641 ′ N, 114 ° 17.410 ′ E, 10 m, 11. vi. 2014, F. Jia, W. Xie & J. Chen leg. (SYSU); 1 ♂, Datan (Lejuyuan), 22 ° 15.513 ′ N, 114 ° 12.163 ′ E, 240 m, 13. vi. 2014, F. Jia, Y. Li & J. Chen leg. (SYSU); 1 ♀, Shaluodong, 22 ° 28.555 ′ N, 114 ° 10.909 ′ E, 185 m, light trap, F. Jia, W. Xie & Alex leg. (SYSU); Hunan: 3 ♂, 4 ♀, Shaoyang, Chengbu County, Baimaoping Town, Xiatang Road, 26.2643 N, 110.3585 E, 530 m, 23. viii. 2020, night & light trap, Z. Jiang leg. (SYSU); 1 ♀, Shaoyang, Chengbu County, Jinzishan forest farm, Yaorenping, 26.2524 N, 110.4976 E, 825 m, 25. viii. 2020, day, Z. Jiang leg. (SYSU); 3 ♂, 1 ♀, Shaoyang, Chengbu Miao Autonomous County, Lanrong Township, Jintongshan Mt., 26 ° 17 ′ 51 ″ N, 110 ° 28 ′ 58 ″ E, 1095 m, 8. ix. 2020, Z. Yang leg. (SYSU); 1 ♀, Shaoyang, Chengbu Miao Autonomous County, Lanrong Township, Jintongshan Mt., 26 ° 14 ′ 64 ″ N, 110 ° 22 ′ 25 ″ E, 565 m, 8. ix. 2020, light trap, Z. Yang leg. (SYSU); 3 ♀, Chenzhou, Mangshan Mt., Jiangjunzhai, 24 ° 57 ′ 1 ″ N, 112 ° 55 ′ 58 ″ E, 1260 m, 27. viii. 2020, Z. Yang leg. (SYSU); 1 ♂, Chenzhou, Yizhang County, Mangshan Mt., 24.9457 N, 112.9824 E, 1480 m, 5. ix. 2020, Z. Ma leg. (SYSU); Jiangxi: 7 ♂, 3 ♀, Jinggangshan Mt., Jingzhushan Scenic Area, 4. x. 2010, S. Zhao leg. (SYSU); 3 ♂, 1 ♀, Jinggangshan Mt., Shuangxikou, 5. x. 2010, S. Zhao leg. (SYSU); 2 ♂, 1 ♀, Jinggangshan Mt., Shuangxikou, 24. iv. 2011, S. Zhao leg. (SYSU); 1 ♀, Jinggangshan Mt., Huyangta, 28. iv. 2011, S. Zhao leg. (SYSU); 11 ♂, 8 ♀, main peak of Jinggangshan Mt., 605 m, 29. iv. 2011, S. Zhao leg. (SYSU); 1 ♂, Jinggangshan Mt., Xiazhuang, 29. iv. 2011, S. Zhao leg. (SYSU); 1 ♀, Jinggangshan Mt., 1. iv. 2011, Y. Li leg. (SYSU); 1 ♂, Jinggangshan Mt., Xiangzhou, 28. v. 2011, L. Yang leg. (SYSU); 16 ♂, 8 ♀, Ganzhou, Jiulianshan Mt., Xiagongtang, 24 ° 32 ′ 28 ″ N, 114 ° 27 ′ 32 ″ E, 525 m, 18. viii. 2020, Z. Yang leg. (SYSU); Macao: 1 ♂, Luhuan, Zhugutang, 27. iii. 2014, W. Xie leg. (SYSU); 5 ♂, 6 ♀, Luhuan, Dieshitang, 27. iii. 2014, F. Jia, W. Xie & J. Wang leg. (SYSU); Zhejiang: 1 ♂, Quzhou, Kaihua County, Gutianshan Nature Reserve, 29.2499 N, 118.1402 E, 695 m, 20. ii. 2021, Z. Jiang & X. Ye leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 3 B – C and 6 J – O. Collection details. The specimen from Gutianshan Nature Reserve was collected together with P. dissimilis among decaying leaves in a stream (Fig. 8 B); in Liuxihe, specimens were also collected in small shallow puddles on a mountain dirty road (Fig. 8 D).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE8FF815FDAFC94E2512626.taxon	distribution	Distribution. Southern and eastern China (Fujian, Guangdong, Guangxi, Guizhou, Hunan, Hongkong, Jiangxi, Macao, Taiwan, Zhejiang) (Fig. 11 A). First record from Hunan and Zhejiang provinces. Notes. During field collections by the senior author in Gutianshan Mt. (Zhejiang), it was observed that P. gemellatus and P. dissimilis were living together in the same place of the same stream. However, P. gemellatus is much rarer than P. dissimilis here, probably because drifting through the water facilitates dispersal. At other localities both species probably do not occur in the same habitat. These two species may have different ecological requirements, but this needs to be confirmed by more observations in the future. Specimens of both species from Gutianshan Mt. are easy to distinguish, in P. gemellatus with elytral yellow vittae not reduced basally (Fig. 3 C) and apex of median lobe of aedeagus less pointed (Fig. 6 M), and in P. dissimilis with elytral yellow vittae vanishing on basal third of elytra (Fig. 3 A) and apex of median lobe of aedeagus more pointed (Fig. 6 H). However, when the full spectrum of the colour range is considered, P. gemellatus can closely resemble P. dissimilis (Fig. 2 C). Except for the shape of the median lobe of aedeagus, other characters such as body size and aspect of longitudinal grooves on male abdominal ventrite VI are not stable and cannot be used reliably for identification. Even the shape of the median lobe of aedeagus of specimens of these two species from different areas is somewhat variable (Figs 6 E – H, 6 J – N), and there are intermediate forms difficult to distinguish. In addition, fully coloured specimens of P. dissimilis may also occur syntopically with P. gemellatus as that in Gutianshan Mt. stated above, which increases the difficulty.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE7FF815FDAFEB1E38720A4.taxon	description	(Figs 3 D, 7 A – B, 9 A, 11 B)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE7FF815FDAFEB1E38720A4.taxon	materials_examined	Type locality. “ China, Hainan, 30 km E Maoyang, Wuzhi Shan Resort ”, ca. 18.9092 N, 109.6776 E, 700 – 800 m. Type material. Holotype ♂, deposited in IAECAS. Material examined. CHINA: Hainan: 1 ♀, Jianfengling Mt. (Five), 25. vi. 1981, light trap, H. Rao leg. (SYSU); 5 ♂, 4 ♀, Limushan Mt., Limu Temple, 5. v. 2011, S. Zhao leg. (SYSU); 6 ♂, 3 ♀, main peak of Limushan Mt., 6. v. 2011, S. Zhao leg. (SYSU); 2 ♂, third and fifth divisions of Jianfengling Mt., 9. v. 2011, S. Zhao leg. (SYSU); 6 ♂, 2 ♀, Changjiang County, Bawangling Mt., Bawang Stone Sea, 19.0814 N, 109.1233 E, 550 m, 22. v. 2022, Z. Jiang leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 3 D and 7 A – B. Collection details. Platynectes hainanensis was collected at stream bottoms among decaying leaves in Limushan Mt. (Hainan) (Fig. 9 A).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE7FF815FDAFEB1E38720A4.taxon	distribution	Distribution. Known only from the Hainan Province, China (Fig. 11 B).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE7FF815FDAF936E252220C.taxon	discussion	Notes. This subspecies was mentioned from China (Tibet and Yunnan) by Nilsson (1998). The record of Tibet was based on some specimens labelled “ Tibet-Nepal border, Kodari, Tatopani ”. The locality actually belongs to Nepal and not Xizang in China. Šťastný (2003) just followed the Nilsson’s record but without studying any other specimens from Xizang. On the other hand, the specimens from Baoshan (Yunnan) studied by Nilsson (1998) were treated as a new subspecies — P. kashmiranus lemberki by Šťastný (2003). Therefore, we remove P. kashmiranus kashmiranus from the Chinese fauna.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE7FF805FDAFA9EE44A26EE.taxon	description	(Figs 4 A – B, 7 C – E, 9 B, 12 A)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE7FF805FDAFA9EE44A26EE.taxon	materials_examined	Type locality. “ China, Yunnan Province, 10 km NE of Tengchong, Behai ZingHai lake env ”. Type material. Holotype ♂, deposited in NHMW. Material examined. CHINA: Xizang: 2 ♀, Mêdog, Beibeng, 850 m, 25. v. 1983, Y. Han leg. (SYSU); 1 ♂, 1 ♀, Linzhi, Mêdog, A’ni Bridge, 1080 m, 13. viii. 2006, M. Bai leg. (SYSU); 1 ♂, Mêdog County, Dexing Township 29 ° 19 ′ 56 ″ N, 95 ° 18 ′ 24 ″ E, 887 m, 22. vi. 2018, S. Wang & Z. Liang leg. (SYSU); 3 ♂, 1 ♀, Mêdog County, Miri Village, 29 ° 25 ′ 6 ″ N, 95 ° 24 ′ 23 ″ E, 820 m, 23. vi. 2018, S. Wang & Z. Liang leg. (SYSU); Yunnan: 3 ♂, 3 ♀, Baoshan, Baihualing, Zaotang River, 25.3087 N, 98.7936 E, 1480 m, 11. v. 2021, Z. Jiang, Z. Yang, Z. Mai & B. Huang leg. (SYSU); 3 ♂, 4 ♀, Tengchong, Houqiao Town, Y 015, 25.2281 N, 98.2985 E, 1750 m, 12. v. 2021, Z. Jiang, Z. Yang & Z. Mai leg. (SYSU); 1 ♀, Tengchong, Houqiao Town, Xintang River, 25.1599 N, 98.2450 E, 1890 m, 12. v. 2021, Z. Jiang, Z. Yang & Z. Mai leg. (SYSU); 13 ♂, 6 ♀, Lushui, Pianma Town, S 316, 26.0143 N, 98.6506 E, 2135 m, 17. v. 2021, Z. Jiang, Z. Yang & Z. Mai leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 4 A – B and 7 C – E. Collection details. The specimens from Pianma Town were collected among gravel in a crevice at the bottom of a wet rock wall (Fig. 9 B).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE7FF805FDAFA9EE44A26EE.taxon	distribution	Distribution. Southern China (Yunnan, Xizang) (Fig. 12 A). First record from Xizang Autonomous Region. Notes. The median lobe of the specimens from Xizang (Fig. 7 D) is similar to that of P. kasmiranus lemberki specimens from Yunnan (Fig. 7 C) but more strongly curved. The geographical conditions between Xizang and Yunnan are very different, so the differences are understandable. Except for curvature of the median lobe, no other distinct differences were found between the specimens from Xizang and Yunnan.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE6FF805FDAFEF9E36320FD.taxon	description	(Figs 4 C, 7 F – G, 9 C, 12 A)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE6FF805FDAFEF9E36320FD.taxon	materials_examined	Type locality. “ S Vietnam, N Dalat, Lang Bian ”. Type material. Holotype ♂, deposited in NHMW. Material examined. CHINA: Yunnan: 2 ♂, 4 ♀, Lvchun County, ditches and terraces by the roadside, 22.8856 N, 102.3264 E, 1440 m, 1. v. 2021, Z. Jiang, Z. Yang & Z. Mai leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 4 C and 7 F – G. Collection details. The specimens from Lvchun were collected in ditches by the roadside (Fig. 9 C).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE6FF805FDAFEF9E36320FD.taxon	distribution	Distribution. Southern China (Yunnan) (Fig. 12 A).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE6FF805FDAF908E54D23EE.taxon	description	(Figs 4 D, 12 A)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE6FF805FDAF908E54D23EE.taxon	materials_examined	Type locality. “ Thailand, Phu Hin Rongkla National Park, Huai Khamunoi ”. Type material. Holotype ♂, deposited in NHMW. Material examined. CHINA: Yunnan: 1 ♀, “ China: Yünnan, Xishuangbanna ca. 15 km NW Menglun 5.11.1999, ca. 700 – 800 m leg. Jäch, et al. (CWBS 354) ” (NHMW). Notes. Habitus is given in Fig. 4 D. Collection details. Found in primary forest streams and pools near waterfalls at altitudes ranging from 700 to 1250 m a. s. l. (Šťastný 2003).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE6FF805FDAF908E54D23EE.taxon	distribution	Distribution. Southern China (Yunnan, Xishuangbanna) (Fig. 12 A). Notes. This species was reported from China based on only a single female specimen from Xishuangbanna, Yunnan (CWBS 354) by Šťastný (2003). This female was studied in great detail by one of us (J. Šťastný) and because it was identical in all characters with specimens from the type series it was identified as P. mazzoldii. It was not included in the type series (Šťastný 2003) because it was found about 500 km from the type locality of P. mazzoldii. There is currently a gap in the known distribution, but it is likely that it may occur from Thailand to southern China. The occurrence and distribution of this species in China need to be confirmed by further records.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE1FF875FDAF8A4E0A722E9.taxon	description	(Figs 5 A, 7 H – I, 12 B)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE1FF875FDAF8A4E0A722E9.taxon	materials_examined	Type locality. “ China, Guangdong Province, Nanling N. P., Yao Shan ”, ca. 24 ° 53 ′ 03 ″ N, 112 ° 57 ′ 37 ″ E, 950 m. Type material. Holotype ♂, deposited in IAECAS. Material examined. CHINA: Guangdong: 1 ♂, “ Guangdong Prov., Chengjia-Ruyuan rd. ca. 40 km E Chengjia 5.11.2001 Jäch & Komarek (CWBS 471) ” (JSCL); Jiangxi: 1 ♂, Jinggangshan Mt., Jingzhushan Scenic Area, 910 m, 25. iv. 2011, S. Zhao leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 5 A and 7 H – I. Collection details. Found in streams at moderate altitude (400 – 500 m a. s. l.) (Šťastný 2003).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE1FF875FDAF8A4E0A722E9.taxon	distribution	Distribution. Southeastern China (Fujian, Guangdong, Jiangxi) (Fig. 12 B). First record from Jiangxi province.	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE1FF995FDAFB03E41125CE.taxon	description	(Figs 5 B, 7 J – K, 12 B)	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE1FF995FDAFB03E41125CE.taxon	materials_examined	Type locality. “ China, Shandong Province, Tai’an Prefecture, Tai Shan Nature Reserve ”, ca. 36.2634 N, 117.0822 E, 350 m. Type material. Holotype ♂, deposited in IAECAS. Material studied. CHINA: Shandong: 4 ♂, 11 ♀, Taishan Mt., foot of Tianzhufeng, 15. vii. 2008, Y. Liu leg. (SYSU). Notes. Habitus and male genitalia are given in Figs 5 B and 7 J – K. Collection details. In Tai Shan Nature Reserve, specimens were collected in a small, slowly flowing stream and also in ground water pools among big rocks (Nilsson 1998; Šťastný 2003).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
0F5587DCFFE1FF995FDAFB03E41125CE.taxon	distribution	Distribution. Known only from Taishan Mt., Shandong Province, China (Fig. 12 B).	en	Jiang, Zhuo-Yin, Zhao, Shuang, Jia, Feng-Long, Šťastný, Jaroslav (2023): Two new species of Platynectes Régimbart, 1879 from China with notes on other Chinese members of the genus, including a key to species (Coleoptera: Dytiscidae: Agabinae). Zootaxa 5227 (4): 401-425, DOI: https://doi.org/10.11646/zootaxa.5227.4.1
