taxonID	type	description	language	source
FDA847E713DF67F3DFE863C6E2475CE3.taxon	distribution	Distribution. China (Gansu Province).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
FDA847E713DF67F3DFE863C6E2475CE3.taxon	discussion	Remarks. Wu (1938) described this species based on a single male specimen, with the female still unknown. The type locality is Mahoshan Mountain in Gansu, China. Currently, this species is known only from Gansu Province, China.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
C262F5A3127C6509EB1EC370A97019E0.taxon	materials_examined	Material examined. • 5 males, 30 females, China: Inner Mongolia Autonomous Region, HulunBuir city, Oroqen Zizhiqi, Dayangshu town, 405 m, 49.7086 ° N, 124.5899 ° E, 2023. VI. 3, leg. Zhu Ya-Fei & Yang Xiao • 4 females (ICYZU), China: Heilongjiang Province, Da Hinggan Ling Prefecture, Tahe County, 364 m, 52.3071 ° N, 124.7051 ° E, 2023. VII. 30, leg. Zhu Ya-Fei & Yang Xiao.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
C262F5A3127C6509EB1EC370A97019E0.taxon	description	Supplementary description. Male. Forewing length: 8.0 – 8.5 mm; hindwing length: 7.0 – 7.5 mm. Body greenish in field, pale yellow in ethanol. Head rounded, pale brown without markings or spots. Compound eyes blackish, ocelli gray with black margins. Antennae brown, with pale brown basal segments. Wings macropterous, hyaline. Meso- and metanota with faint pigmentation, no markings or stripes (Fig. 6 A). Abdominal terga with prominent dorsal stripe originating on segment 1, continuing through segment 7. Epiproct recurved anteriorly, slightly swollen at base, medially constricted, with black medial stripes anteriorly; uniformly broad toward apex, apex rounded, length approximately four times width (Fig. 6 B). Ventrally, epiproct has a row of long spines along margin, medially constricted (Fig. 7 A – C). Cerci dark brown, generally brown, small basal segments covered with long setae. Female. The female subgenital plate is small and V-shaped, extending only to the middle part of sternum 9. The plate gradually slopes to an abrupt point, forming a triangle with a broad base (Fig. 8 A, B). The cerci are pale brown.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
C262F5A3127C6509EB1EC370A97019E0.taxon	distribution	Distribution. China (Inner Mongolia Autonomous Region and Heilongjiang Province), Mongolia, Russia, and South Korea.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
C262F5A3127C6509EB1EC370A97019E0.taxon	discussion	Remarks. Huo et al. (2022) newly reported this species in China from Xiaodong Gou Village, Benxi County, Liaoning Province, based on female specimens, without describing the male. Here, we provide the first description of the male specimens of this species from China. The species was described initially from magnolia in Russia (Judson and Nelson 2012; Teslenko and Zhiltzova 2009), but neither description included the ventral view of the epiproct (Judson and Nelson 2012: figs 96 – 98; Teslenko and Zhiltzova 2009: fig. 557), which is essential for identifying this species because it possesses a row of spines in the ventral view. We offer a revised description with clear color images of both dorsal and ventral views to avoid future misidentifications. The ventral view of the epiproct bears a distinct row of spines (Fig. 7 A, B). Additionally, we observed variation in the subgenital plate among some female individuals; some have a short, sloped structure while others have a little longer extension. Earlier literature indicates that the figures provided for the female subgenital plate in Judson and Nelson (2012) and Teslenko and Zhiltzova (2009) differ from each other, suggesting that variation in the female subgenital plate is common in this species. The type locality of this species is Arkhangai Aimag, Somon Chencher at Urd-Tamir Gol, Mongolia (Judson and Nelson 2012).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
D7C7F461CD820285BB77D4CF9939AA8E.taxon	distribution	Distribution. China (Liaoning Province) and Russian Far East.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
D7C7F461CD820285BB77D4CF9939AA8E.taxon	discussion	Remarks. Zhang et al. (2024) newly reported this species from China (from Quanshan Forest Farm in Kuandian Manchu Autonomous County, Dandong City, Liaoning Province), based solely on a female specimen; the male is still undescribed from China. The type locality is the Russian Far East, Primorye (DeWalt et al. 2025).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
78F3EBDD872F3017B7689A6105D13122.taxon	distribution	Distribution. China (Liaoning Province) and Russia.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
78F3EBDD872F3017B7689A6105D13122.taxon	discussion	Remarks. Zhang et al. (2024) newly reported this species from China (from Quanshan Forest Farm in Kuandian Manchu Autonomous County, Dandong City, Liaoning Province), based only on a female specimen; the male is still undescribed in China. The type locality is Kunashir, Russia (DeWalt et al. 2025).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
E837930BEFB7C2D620FD7D72C2CC581F.taxon	materials_examined	Material examined. • 2 females, China: Inner Mongolia Autonomous Region, HulunBuir city, Oroqen Zizhiqi, Dayangshu town, 405 m, 49.7086 ° N, 124.5899 ° E, 2023. VI. 3, leg. Zhu Ya-Fei & Yang Xiao (ICYZU) • 1 male, 5 females, Heilongjiang Province, Da Hinggan Ling Prefecture, Songlin District, Jinsong town, 480 m, 51.0724 ° N, 124.1948 ° E, 2023. VI. 4, leg. Zhu Ya-Fei & Yang Xiao; • 3 males, 20 females • Heilongjiang Province, Da Hinggan Ling Prefecture, Xinlin District, Dawusu town, 471 m, 51.7682 ° N, 124.5122 ° E, 2023. VI. 6, leg. Zhu Ya-Fei & Yang Xiao (ICYZU); • 4 males, 2 females China: Heilongjiang Province, Da Hinggan Ling Prefecture, Tahe county, 364 m, 52.3050 ° N, 124.6968 ° E, 2023. VI. 6, leg. Zhu Ya-Fei & Yang Xiao (ICYZU).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
E837930BEFB7C2D620FD7D72C2CC581F.taxon	description	Supplementary description. General body color pale yellow in alcohol. Head pale brown, triocellate. Pronotum with prominent, dark-brown medial stripe (Fig. 4 A). Epiproct short, pointed, divided into two portions, nearly equal in width, separated by noticeable constriction. Anterior portion of epiproct oval, bearing several spines along lateral margins, easily visible from dorsal view (Fig. 4 B, C). Female subgenital plate long, narrowly triangular with rectangular, parallel-sided base, extending nearly full length of sternum 9 (Fig. 4 D).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
E837930BEFB7C2D620FD7D72C2CC581F.taxon	distribution	Distribution. China (Heilongjiang, Inner Mongolia, and Liaoning), Japan, Mongolia, Russia, and South Korea.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
E837930BEFB7C2D620FD7D72C2CC581F.taxon	discussion	Remarks. This species was first described from China by Nelson and Hanson (1968) as Alloperla alexanderi Nelson & Hanson, 1968, but it was later synonymized with A. mediata by Zhiltzova and Zwick (1971). The type locality is the Russian Far East, which includes Khabarovsk and Vladivostok. It has been recorded in China from Heilongjiang, Inner Mongolia, and the Greater Khingan Mountains.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
4BD5F0A827A30D0D513FAF7C8C737F06.taxon	materials_examined	Material examined. • 1 male, China: Heilongjiang Province, Da Hinggan Ling Prefecture, Tahe county, 364 m, 52.3050 ° N, 124.6968 ° E, 2023. VI. 6, leg. Zhu Ya-Fei & Yang Xiao (ICYZU).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
4BD5F0A827A30D0D513FAF7C8C737F06.taxon	description	Supplementary description. Male body pigmentation matches previous descriptions in the literature. Tergum X divided and features two parallel sclerotized bands along inner margin. Base of epiproct rounded and shiny, with slight constriction near base. In dorsal view, it narrows to form pointed apex, while laterally completely flattened (Fig. 5 A – C).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
4BD5F0A827A30D0D513FAF7C8C737F06.taxon	distribution	Distribution. China (Heilongjiang Province), Russia, and Mongolia.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
4BD5F0A827A30D0D513FAF7C8C737F06.taxon	discussion	Remarks. Zhang et al. (2024) newly reported this species from China based on male and female specimens from Tahe County in Heilongjiang Province. The type locality is Teletskoye Lake, near the confluence of the Koksa River in the Altai Republic, Russia.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
387F2D10E2C933BFC6F717D2252BAE4E.taxon	distribution	Distribution. China (Heilongjiang Province).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
387F2D10E2C933BFC6F717D2252BAE4E.taxon	discussion	Remarks. Nelson and Hanson (1968) described this species based solely on a male specimen, with the female still unknown. The type locality is Yalu Station in the Greater Khingan Mountains, Manchuria, China. Currently, this species is only known from Heilongjiang Province, China.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
6129EECFAFED5929B618615339A10C43.taxon	description	Figs 1, 2, 3	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
6129EECFAFED5929B618615339A10C43.taxon	diagnosis	Diagnosis. The new species is characterized by a triangular epiproct. The epiproct is distinctly triangular, especially in its middle portion. Basally, it is narrow and broadens medially before tapering towards a pointed apex, forming a triangular shape. The apex is pointed and bears tiny anterior hairs (Figs 1 B, C, 2 A).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
6129EECFAFED5929B618615339A10C43.taxon	description	Description. Male. Forewing length: 8.5 – 9.0 mm; hindwing length: 7.5 – 8.0 mm. Body greenish in the field, pale yellow in ethanol. Head rounded brown with small central brown markings or spots. Compound eyes blackish, ocelli gray with black margins. Antennae brown, with pale brown basal segments (Fig. 1 A). Wings macropterous, hyaline. Abdominal terga 1 – 6 with a small brown median stripe. Tergum 9 dark brown posteriorly; tergum 10 dark brown, divided medially by the epiproct and reduced cowl into two hemitergal lobes bearing dense matting of long setae (Fig. 1 B). Epiproct small, triangular, with a dorsal surface covered by dense, small hairs. Basally narrow, widening medially to a triangular shape with a pointed apex (Fig. 1 C). The ventral surface is flattened, broad at the base, tapering towards apex, and bending towards tergum 10 to form a hook-like structure (Fig. 2 B, C). Laterally flattened, bearing small hairs. Cerci dark brown, generally brown with small basal segments covered with long setae. Female. Forewing length: 9.0 – 9.5 mm; hindwing length: 8.0 – 8.5 mm. Body appears greenish in life and brown in ethanol. Head rounded, brown, with small brown markings or spots on frons. Compound eyes blackish, ocelli gray with black margins. Pronotum brown with slight rugosities (Fig. 3 A). Subgenital plate parallel-sided, rectangular at base, then abruptly narrows in middle, forming long subtriangle extending to middle of sternum 9. Posterior margins of plate rounded, and subgenital plate darkly sclerotized with black triangular spot in center (Fig. 3 B. C). Egg and nymph. Unknown.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
6129EECFAFED5929B618615339A10C43.taxon	distribution	Distribution. Known only from the type locality.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
6129EECFAFED5929B618615339A10C43.taxon	etymology	Etymology. The species is named for its epiproct, which is distinctly triangular in shape. The Latin word “ triquetra ” means triangular.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
2A5899A7EBDB9F9A59DF730C279AD3F6.taxon	distribution	Distribution. China (Liaoning Province).	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
2A5899A7EBDB9F9A59DF730C279AD3F6.taxon	discussion	Remarks. Li and Wang (2011) described only the male of this species, and the female remains unknown. The type locality is Quanshanlinchang, Kuandian County, Liaoning. This species is currently known only from Liaoning Province, China.	en	Rehman, Abdur, Huo, Qing-Bo, Du, Yu-Zhou (2025): Synopsis of Chinese Alloperla Banks, 1906 (Plecoptera, Chloroperlidae), with description of a new species. ZooKeys 1243: 365-375, DOI: 10.3897/zookeys.1243.139128
