taxonID	type	description	language	source
F91987D41E77AD4A7BABFF798691EA12.taxon	description	(Figs 1 A – B, 3 A – C, 5 A)	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD4A7BABFF798691EA12.taxon	materials_examined	Type materials. Holotype, male: “ China-Yunnan \ Xishuangbanna | 1500 m 11.1999 \ Leg. Wang & Wei ”. Paratypes: 4 males, 4 females, the same data as holotype; 2 males: “ China: Yunnan, Dali, \ Cang Moutains, \ Qingbi creek, | 100 ° 08 ’ E 25 ° 38 ’ N, \ 2177 m, 2021. 7. 14. Leg. \ Bian & Tong ”; 1 male: “ China: Yunnan (25) \ Nujiang \ Lushui, Pianma | 98 ° 38 ’ 54 ” E 26 ° 0 ’ 26 \ Leg. Peng & Dong ”.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD4A7BABFF798691EA12.taxon	diagnosis	Diagnosis. This species is similar to the Zaitzevia xiongzichuni Jiang & Wang, 2020 in habitus, but its body size is slightly larger than Z. xiongzichuni Jiang & Wang, its apex of penis looks like a “ sub-triangle ”, not cupidal. The new species also has the similar size with Zaitzevia chenzhitengi Jiang & Wang, 2020, but is can be distinctly recognized from Zaitzevia chenzhitengi Jiang & Wang, 2020 by median sulcus of pronotum distinctly shorter, its apex of pennis sub-triangle, not arrowhead-like. BL 3.3 mm long, BW 1.4 mm. Habitus see (Figs 1 A – B). Body black, ventral side, femora and tibiae brown. Antennae yellowish-brown. Head: labrum wider than long, basal half smooth and shining, without punctures and pubescence, distal half sparsely punctate and pubescent. Clypeus densely punctate and pubescent, sparsely granulate, anterior margin emarginate. Clypeal suture slightly impressed. Frons densely punctate and pubescent, and the granules denser than on the clypeus. PL 0.9 mm, PW 1.0 mm, broadest at basal 0.4, slightly attenuated posteriorly and distinctly attenuated anteriorly. Anterior half of lateral margin serrate. Disc densely punctate, the area near the anterior angles densely granulated and pubescent. Sublateral carinae present in basal 0.4, bent outwards at basal 0.3. Median longitudinal sulcus a little broadened at middle, extending from basal 0.2 to 0.6. Base with three pair of small granules in front of the scutellum. EL 2.4 mm, EW 1.4 mm. Elytra broadest at middle, slightly attenuated anteriorly and distinctly attenuated posteriorly. Strial punctures small, separated by 0.5 – 1.5 times of their diameters. Punctures smaller, and separated by 3 – 5 times of their diameters. Intervals 1 – 4 smooth and shining, only with few fine punctures sparsely arranged. The plastron presents from interval 5 to lateral margin. Intervals 5, 7, 8 carinate (Fig. 5 A). Lateral margin serrate. Apices with some granules. Prosternum densely pubescent. Prosternal process slightly narrowed from base to basal 0.8, then distinctly narrowed in distal 0.2; apex narrowly rounded; anterior half of the disc flat, smooth and shining, only with few fine punctures, posterior half distinctly impressed and coarse; lateral margin distinctly rimmed. Metaventrite broadly and distinctly impressed, smooth and shining, only with some small punctures and elongated granules; median groove distinctly impressed in posterior 0.8; two rows of large punctures, one is behind of the mesocoxa and the other one is in front of the metacoxa on each side; base with a pair of elongated deep pits medially; lateral sides densely pubescent, the pubescence with golden luster. Ventrites I – V with disc smooth and shining, sparsely punctate, lateral sides of all the five ventrites densely pubescent and sparsely granulated. Posterior margin of ventrites III – IV finely and densely punctate, and densely pubescent. Apical margin of ventrite V emarginated medially, and each side with a group of yellowish long setae. Aedeagus: 1.7 mm long, slender and elongate, cylindroid, penis about 2.2 times as long as phallobase. Penis subparallel in basal half, then slightly narrowly to basal 0.9, distal 0.1 distinctly narrowed and the shape looks like a “ sub-triangle ”; with a pair of sharp teeth at distal 0.2. Parameres absent. Males: BL 3.2 – 3.5 mm, BW 1.3 – 1.5 mm (n = 7). Females: BL 3.3 – 3.6 mm, BW 1.4 – 1.5 mm (n = 2).	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD4A7BABFF798691EA12.taxon	distribution	Distribution. China, Yunnan.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD4A7BABFF798691EA12.taxon	etymology	Etymology. This species is named after the Muchen Tong, who collected some type materials.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD487BABF8EA8337E826.taxon	description	(Figs 1 C – D, 3 D – F, 5 B)	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD487BABF8EA8337E826.taxon	materials_examined	Type materials. Holotype, male: “ China: Yunnan (15) \ Baoshan, Mangkuan \ Sandieshui | 98 ° 50 ’ 16 ” E 25 ° 26 ’ 25 ” N \ 1135 m, 2018.10.22 \ Leg. Peng, Zhu, Dong ”. Paratypes, 2 males, the same data as holotype; 9 males, 4 females: “ China: Yunnan (17) \ Boashan, Mangkuan, Xinguang Vill. \ 98 ° 50 ’ 53 ” E 25 ° 41 ’ 6 ” N \ 2018.10.23, 1026 m \ Leg. Peng, Zhu, Dong. ”	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD487BABF8EA8337E826.taxon	diagnosis	Diagnosis. This species is similar to Zaitzevia nitida Nomura in habitus and body size, but it can be distinguished from the latter by median longitudinal sulcus distinctly shorter, apex of penis is not sharp, lateral view of penis distinctly curved, and also by the kidney-liked shape of the endophallus. This species is different from other small species in genus Zaitevia by its shorter median longitudinal sulcus, and by different shape of male gentalia. BL 1.90 mm, BW 0.75 mm. Habitus see (Figs 1 C – D). Body elongated, dorsal surface, femora, tibae black, ventral side dark brown to black, antennae and tarsi yellowish brown. Head: labrum wider than long, smooth and shining, basal 2 / 3 sparsely punctate and pubescent, anterior margin broadly rounded, lateral margin with long setae. Clypeus slightly wider than long, sparsely punctate and pubscent, lateral sides with some granules. Clypeal suture straight, shallowly impressed. Frons similar to the clypeus. PL 0.5 mm, PW 0.6 mm. Pronotum broadest at basal 0.4, then slightly attenuated anteriorly and posteriorly. Disc smooth and shining, punctures sparsely and evenly distributed, only with few short setae. Anterior angles sharp, slightly produced, posterior angles rectangle. Sublateral carinae obsolete. Sublateral grooves tilt inwards in basal 0.3, then bent outwards from basal 0.3 to 0.7. Median longitudinal sulcus very narrow and shallow, slightly broadened at middle, extending from basal 0.4 to 0.6. EL 1.4 mm, EW 0.75 mm. Elytra subparallel in basal 2 / 3, the distinctly attenuated in distal 1 / 3. Apices not conjointed. Strial punctures on disc small, separated by 0.5 – 1.5 times of their diameters, and the punctures becoming finer and well separated in distal half. Intervals I-IV flat, smooth and shining, interval 1 with a longitudinal row of fine punctures, intervals 2 – 4 almost without punctures and pubescence. Intervals 5, 6, 7 carinate (Fig. 5 B). Lateral margin serrate. The area between carinae on interval 5 to lateral margin with plastrons, except the basal area of intervals 5, 6. Prosternum with disc smooth and shining, sparsely punctate and pubescent, lateral area densely pubescent. Prosternal process with disc coarse, without pubescence. Lateral margin distinctly rimmed, subparallel basal 0.8, distal 0.2 distinctly narrowed; apex narrowly rounded. Metaventrite with disc broadly and deeply impressed, smooth and shining, almost without punctures and pubescence; lateral area densely pubescent; median groove present in basal 0.7; two rows of large punctures on each side, one is behind the mesocoxa and the other one is in front of the metacoxa. Disc of ventrites I – V smooth and shining, sparsely punctate, almost without pubescence, lateral area of ventrites I – V densely pubescent. Apex of the ventrite V emarginated, with some small granules and a group of long setae at each side. Aedeagus. 0.8 mm long. Penis about 1.3 times as long as phallobase, sub-paralleled in basal half, then slightly narrowly in distal half. Apex broadly rounded. Ventral sac not developed. Endophallus not developed, and the shape looks like a pair of “ kidney ” - liked near the middle in ventral view. Parameres completely confused to penis, only can see the trace near the middle Males: BL 1.7 – 2.0 mm, BW 0.7 – 0.8 mm (n = 11). Females: BL 1.7 – 1.9 mm, BW 0.7 – 0.8 mm (n = 3).	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD487BABF8EA8337E826.taxon	distribution	Distribution. China, Yunnan.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E77AD487BABF8EA8337E826.taxon	etymology	Etymology. The epithet is derived from the Latin adjective “ reniformis ” (reniform) and refers to the shape of the endophallus.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E75AD437BABFA258715EFDA.taxon	description	(Figs 2 A – B, 4 A – C, 5 C)	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E75AD437BABFA258715EFDA.taxon	materials_examined	Type Materials. Holotype, male: “ China: Yunnan (13) \ Baoshan City \ Gaoligong Moutains, | 98 ° 47 ’ 32 ” E 25 ° 18 ’ 36 ” N \, 1569 m, 2018.10.21 \ Leg. Peng, Zhu, Dong ”. Paratypes: 2 males, the same data as holotype; 1 male: “ China: Yunnan \ Nujiang, Lushui, | 98 ° 53 ’ 27 ” E 26 ° 25 ’ 31 ” N, \ 1061 m, 2018.10.27 \ Leg. Peng, Zhu, Dong ”; 3 males: “ China: Yunnan (17) \ Boashan, Mangkuan, Xinguang Vill. \ 98 ° 50 ’ 53 ” E 25 ° 41 ’ 6 ” N \ 2018.10.23, 1026 m \ Leg. Peng, Zhu, Dong ”; 2 males: “ China: Yunnan, Baoshan \ Gaoligong Moutains, | 98 ° 47 ’ 37 ” E 25 ° 18 ’ 32 ” N, \ 1514 m, 2018.10.21 \ Leg. Peng, Zhu, Dong ”.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E75AD437BABFA258715EFDA.taxon	diagnosis	Diagnosis. This species is similar to Zaitzevia tsushimana Nomura in habitus and body size, but it can be distinguished from the latter by its median longitudinal sulcus of pronotum extending from basal 0.2 to 0.8, not reaching the base, by apex of penis more sharpened, and also by different shape of endophallus. This species can be distinguished from the similar sized species Z. parallela and Z. formosana Nomura by its median sulcus on pronotum not broadened at the middle. It can be distinguished from Z. rivalis by its aedeagus shorter, apex of penis more sharpened, and also by different shape of endophallus. BL 2.2 mm, BW 1.0 mm. (Figs 2 A – B). Body elongated obovate. Dorsal surface black, ventral side brown to black, femora, tibiae ferruginous, antennae, mouth part and tarsi yellowish brown. Head: labrum wider than long, smooth and shining, sparsely punctate, each puncture with one long setae, anterior margin broadly rounded, not emarginate, each side with a group of long setae. Clypeus wider than long, anterior margin slightly indented, evenly punctate, with some small granules. Frons with disc similar to the clypeus, lateral sides somewhat coarse. PL 0.6 mm, PW 0.75 mm. Pronotum broadest at basal 0.4, slightly attenuated anteriorly and posteriorly, lateral margin slightly serrated in basal half. Disc densely punctate, sparsely pubescent, the areas near anterior and posterior angles with some small granules. Sublateral carinae present in basal 0.4. Median longitudinal sulcus is narrow and shallow, not broadened at middle, extending from basal 0.2 to 0.8. Anterior angles sharp, slightly produced, posterior angles sub-rectangle. The area in front of the scutellum with some small granules. EL 1.6 mm, EW 1.0 mm. Elytra broadest at basal 2 / 3, slightly attenuated anteriorly and distinctly narrowed posteriorly. Lateral margin serrated. Strial punctures small, separated by 1 – 2 times of its diameters in basal half, punctures smaller and well separated in distal half. Intervals 1 - 4 and basal area of intervals 5 – 7 smooth and shining, flat. Interval one with one longitudinal row of small punctures. From interval 5 to lateral margin densely pubescent. Intervals 5, 6, 7 carinate (Fig. 5 C). The carina on intervals 5 extends from basal 0.1 to the apex, the other two carinae begin at base. Apices of elytra broadly rounded separately. Prosternum densely pubescent, with some small granules. Prosternal process slightly narrowed from base to the apex, the apex broadly rounded, lateral margin distinctly rimmed; disc flat, smooth and shining, almost without punctures and pubescence. Disc of metaventrite broadly and deeply impressed, smooth and shining, only with few small punctures, not pubescent. Median sulus shallow, present almost in the whole length, lateral side densely pubescent, sparsely granulate. Each side with two rows of large punctures, one is behind of the mesocoxa, and the other one is in front of the metacoxa. Disc of ventrites I – IV, and basal 0.2 of ventrite V smooth and shining, only with some small punctures, lateral sides of ventrites I – IV covered with dense golden pubescence, disc of ventrite 5 densely granulate and pubescent. Apical margin distinctly emarginated, each side with a group of long setae. Aedeagus: 1.0 mm long, elongated, cylindrical, penis is 1.6 times as long as phallobase. Penis slightly broadened from base to basal 0.2, then subparallel from basal 0.2 to 0.6, slightly narrowed from basal 0.6 to 0.8, distinctly sharpened in distal 0.2, with a pair of apical teeth. Endophallus elongated, developed. Parameres completely confused to penis, the apices of parameres reaching the subapical part of the penis. Males: BL 2.1 – 2.3 mm, BW 1.0 mm (n = 8).	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E75AD437BABFA258715EFDA.taxon	distribution	Distribution. China, Yunnan.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E75AD437BABFA258715EFDA.taxon	etymology	Etymology. This species is named after the type locality, Gaoligong Moutains in Yunnan Province, China.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E7EAD437BABFCB98286E96A.taxon	materials_examined	Material examined: 3 males, 3 females: “ China: Yunnan (25) \ Nujiang, \ Lushui, Pianma, | 98 ° 38 ’ 54 ” E 26 ° 0 ’ 26 ” N, \ 23 171 m, 2019. 10. 25. \ Leg. Peng, Zhu, Dong ”; 1 male: “ China: Yunnan (20) \ Lushui, Pianma, | 98 ° 39 ’ 42 ” E 26 ° 0 ’ 3 ” N, 2018. 10.25, 2392 m \ Leg. Peng, Zhu, Dong ”; 1 male: “ China: Shaanxi, \ Qinling Northwest \ A & F University forestry center | Huoditang \ 1974 m, 2005.6.12, Leg. Wang M. ”.	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
F91987D41E7EAD437BABFCB98286E96A.taxon	distribution	Distribution. China: Sichuan, Shaanxi (firstly recorded from Shaanxi), Yunnan (firstly recorded from Yunnan).	en	Bian, Dongju, Zhang, Yi (2022): Three new species of the genus Zaitzevia Champion, 1923 from China (Coleoptera Elmidae: Macronychini). Zootaxa 5190 (2): 257-266, DOI: https://doi.org/10.11646/zootaxa.5190.2.5
