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Styloperla starki Zhao, Huo & Du, 2019 Styloperla starki: Zhao et al., 2019: 555. Materials examined: The specimens re-studied from Zhejiang and Jiangsu were recorded by Huo (2019), Zhao (2019), and Zhao et al. (2019). Distribution: Jiangsu and Zhejiang. Remarks: The number of ventral and subapical spines along the long process of the basal cercal segment varies between four and five (Figs. 7A–B); the apical spines are usually arranged side by side but may also be tandemed vertically (Figs. 7C–D); one apical and two of the subapical spines are occasionally aligned along the same plane (Fig. 8A–D).

Styloperla inae Chao, 1947 Styloperla inae: Chao, 1947: 93; Illies, 1966: 19; Zhao, 1982: 32; Uchida & Isobe, 1989: 158; Stark & Sivec, 2007: 12; Yang & Li, 2018: 55. Materials examined: 5 males, 4 females, Fujian Province, Wuyishan City, Mount Wuyi (Wuyishan), on the way from Saiyan to Tongmu Village, 726 m, 27.746111 N, 117.674722 E, 2021-IV-13, leg. Huo Qing-Bo, Xiang Ya-Nan, Zhu Bin-Qing, Chen Zhi-Qiang; further specimens re-studied from Fujian and Guangdong were recorded in Zhao (2019). Distribution: Fujian, Guangdong, and Guangxi. Remarks: The male and female habitus is shown in Fig. 1, and the typical abdominal morphology of both genders is depicted in Fig. 2A–D. The small lateral spines on the long process of the basal cercal segment vary in distance from the apex. In addition, cercal segments 2–4 bear different number of clusters of mid-dorsal spines (Fig. 3)., Published as part of Huo, Qing-Bo, Zhao, Meng-Yuan, Du, Yu-Zhou, Murányi, Dávid, Zhu, Bin-Qing & Yu, Lei, 2023, The intraspecific morphological variability of Styloperla Wu, 1935 (Plecoptera: Styloperlidae), pp. 125-137 in Zootaxa 5249 (1) on page 126, DOI: 10.11646/zootaxa.5249.1.7, http://zenodo.org/record/7685409, {"references":["Chao, H. F. (1947) Two new species of the genus Styloperla Wu (Perlidae, Plecoptera). Biological Bulletin of Fukien Christian University, 5, 93 - 96.","Illies, J. (1966) Katalog der rezenten Plecoptera. Das Tierreich, Berlin, 82, 1 - 632.","Zhao, X. F. (1982) Checklist of Insects in Fujian. Fujian Science and Technology Publishing House, Fuzhou, Fujian, 32 pp.","Uchida, S. & Isobe, Y. (1989) Styloperlidae, stat. nov. and Microperlinae, subfam. nov. with a revised system of the family group Systellognatha (Plecoptera). Spixiana, 12, 145 - 182.","Stark, B. P. & Sivec, I. (2007) A synopsis of Styloperlidae (Insecta, Plecoptera) with description of Cerconychia sapa, a new stonefly from Vietnam. Illiesia, 3 (2), 10 - 16."]}

Genus Styloperla Wu, 1935 Styloperla: Wu, 1935: 236; Illies, 1966: 17; Zwick, 1973: 218; Uchida & Isobe, 1989: 157; Stark & Sivec, 2007: 12; Yang & Li, 2018: 55. Type species: Styloperla spinicercia Wu, 1935.

Styloperla spinicercia Wu, 1935 Styloperla spinicercia: Wu, 1935: 237; Uchida & Isobe, 1989: 158; Stark & Sivec, 2007: 15; Yang & Li, 2018: 55. Materials examined: The specimens re-studied from Guangxi, Guizhou, and Jiangxi were recorded in Zhao (2019) and Zhao et al. (2019). Distribution: Fujian, Guangdong, Guangxi, Guizhou, Jiangxi and Zhejiang. Remarks: The shorter process lateral to the basal cercal segment has forks of different sizes and shapes and on some males are asymmetric (Fig. 5A–C). The small lateral spines present along the longer medial process on basal cercal segment varies in distance from the apex, sometimes as much as two-fold (Figs. 6A–B). In one particular male, the left and right process on basal cercal segment are completely asymmetric, with one side having a shape similar to that of specimens (Zhao et al. 2019, Mo et al. 2022) previously determined as S. jiangxiensis (Figs. 6C – D)., Published as part of Huo, Qing-Bo, Zhao, Meng-Yuan, Du, Yu-Zhou, Murányi, Dávid, Zhu, Bin-Qing & Yu, Lei, 2023, The intraspecific morphological variability of Styloperla Wu, 1935 (Plecoptera: Styloperlidae), pp. 125-137 in Zootaxa 5249 (1) on page 128, DOI: 10.11646/zootaxa.5249.1.7, http://zenodo.org/record/7685409, {"references":["Wu, C. F. (1935) New species of stoneflies from east and south China. Peking Natural History Bulletin, 9, 227 - 243.","Uchida, S. & Isobe, Y. (1989) Styloperlidae, stat. nov. and Microperlinae, subfam. nov. with a revised system of the family group Systellognatha (Plecoptera). Spixiana, 12, 145 - 182.","Stark, B. P. & Sivec, I. (2007) A synopsis of Styloperlidae (Insecta, Plecoptera) with description of Cerconychia sapa, a new stonefly from Vietnam. Illiesia, 3 (2), 10 - 16.","Zhao, M. Y., Huo, Q. B. & Du, Y. Z. (2019) A new species of Styloperla (Plecoptera: Styloperlidae) from China, with supplementary illustrations for Styloperla jiangxiensis. Zootaxa, 4608 (3), 555 - 571. https: // doi. org / 10.11646 / zootaxa. 4608.3.9","Mo, R. R., Wang, G. Q., Yang, D., Li, W. H. & Muranyi, D. (2022) Review and contribution to the stoneflies (Insecta: Plecoptera) of Guangxi Zhuang Autonomous Region, China, with new species and new records from South China. Zootaxa, 5176 (1), 1 - 80. https: // doi. org / 10.11646 / zootaxa. 5176.1.1"]}

Styloperla wui Chao, 1947 Styloperla wui: Chao, 1947: 93; Illies, 1966: 19; Zhao, 1982: 32; Uchida & Isobe, 1989: 160; Stark & Sivec, 2007: 15; Yang & Li, 2018: 55. Materials examined: The same collections from Fujian recorded in Zhao (2019); 3 males, 2 females (ICYZU), China, Anhui Province, Huangshan City, Mt. Huangshan, “the Valley of Wild Monkeys”, 597 m, 30.086530 N, 118.141606 E, 2020- VI, leg. Yu Lei; 1 male (ICYZU), China, Zhejiang Province, Hangzhou City, Mt. Tianmu, Puwei Garden, No. 6417, 2018-VII-21, collector unknown, specimen provided by Chen Xue-Xin (Zhejiang University). Distribution: Anhui (new provincial record), Fujian, Guangxi, Guizhou, and Zhejiang. Remarks: The male and female habitus are shown in Fig. 9, and the typical abdominal morphology of both genders is depicted in Figs. 10A–D. The long process of the basal cercal segment varies from straight and pointed apically to curved and flat; the subapical spine on the long process varies in distance from the apex (Figs. 11A–D)., Published as part of Huo, Qing-Bo, Zhao, Meng-Yuan, Du, Yu-Zhou, Murányi, Dávid, Zhu, Bin-Qing & Yu, Lei, 2023, The intraspecific morphological variability of Styloperla Wu, 1935 (Plecoptera: Styloperlidae), pp. 125-137 in Zootaxa 5249 (1) on page 131, DOI: 10.11646/zootaxa.5249.1.7, http://zenodo.org/record/7685409, {"references":["Chao, H. F. (1947) Two new species of the genus Styloperla Wu (Perlidae, Plecoptera). Biological Bulletin of Fukien Christian University, 5, 93 - 96.","Illies, J. (1966) Katalog der rezenten Plecoptera. Das Tierreich, Berlin, 82, 1 - 632.","Zhao, X. F. (1982) Checklist of Insects in Fujian. Fujian Science and Technology Publishing House, Fuzhou, Fujian, 32 pp.","Uchida, S. & Isobe, Y. (1989) Styloperlidae, stat. nov. and Microperlinae, subfam. nov. with a revised system of the family group Systellognatha (Plecoptera). Spixiana, 12, 145 - 182.","Stark, B. P. & Sivec, I. (2007) A synopsis of Styloperlidae (Insecta, Plecoptera) with description of Cerconychia sapa, a new stonefly from Vietnam. Illiesia, 3 (2), 10 - 16."]}

Styloperla jiangxiensis Yang & Yang, 1990 Styloperla jiangxiensis: Yang & Yang, 1990: 45; Stark & Sivec, 2007: 13; Yang & Li, 2018: 55; Zhao et al., 2019: 555; Mo et al., 2022: 3. Distribution: Guangdong, Guangxi, Jiangxi, and Zhejiang. Remarks: The morphological variability in this species mentioned by Zhao et al. (2019) is that the male cerci can be asymmetric in left vs. right., Published as part of Huo, Qing-Bo, Zhao, Meng-Yuan, Du, Yu-Zhou, Murányi, Dávid, Zhu, Bin-Qing & Yu, Lei, 2023, The intraspecific morphological variability of Styloperla Wu, 1935 (Plecoptera: Styloperlidae), pp. 125-137 in Zootaxa 5249 (1) on page 128, DOI: 10.11646/zootaxa.5249.1.7, http://zenodo.org/record/7685409, {"references":["Yang, C. & Yang, D. (1990) One new species of the genus Styloperla from Jiangxi (Plecoptera, Styloperlidae). Acta Agriculturae Universitatis Jiangxiensis, 2, 45 - 46.","Stark, B. P. & Sivec, I. (2007) A synopsis of Styloperlidae (Insecta, Plecoptera) with description of Cerconychia sapa, a new stonefly from Vietnam. Illiesia, 3 (2), 10 - 16.","Zhao, M. Y., Huo, Q. B. & Du, Y. Z. (2019) A new species of Styloperla (Plecoptera: Styloperlidae) from China, with supplementary illustrations for Styloperla jiangxiensis. Zootaxa, 4608 (3), 555 - 571. https: // doi. org / 10.11646 / zootaxa. 4608.3.9","Mo, R. R., Wang, G. Q., Yang, D., Li, W. H. & Muranyi, D. (2022) Review and contribution to the stoneflies (Insecta: Plecoptera) of Guangxi Zhuang Autonomous Region, China, with new species and new records from South China. Zootaxa, 5176 (1), 1 - 80. https: // doi. org / 10.11646 / zootaxa. 5176.1.1"]}

Styloperla obtusispina (Wu, 1973) Nogiperla obtusispina: Wu, 1973: 109. Styloperla obtusispina: Uchida & Isobe, 1989:158; Stark & Sivec, 2007: 15; Yang & Li, 2018: 55. Distribution: Sichuan. Remarks: Species status still unknown. In the original illustrations by Wu (1973), the short cercal spines look more similar to the Cerconychia Klapálek, 1913 (Fig. 4). The generic placement of this species is unresolved. Fresh material of this species needs to be collected from its type locality, Mt. Emei, Sichuan Province, for further study., Published as part of Huo, Qing-Bo, Zhao, Meng-Yuan, Du, Yu-Zhou, Murányi, Dávid, Zhu, Bin-Qing & Yu, Lei, 2023, The intraspecific morphological variability of Styloperla Wu, 1935 (Plecoptera: Styloperlidae), pp. 125-137 in Zootaxa 5249 (1) on page 128, DOI: 10.11646/zootaxa.5249.1.7, http://zenodo.org/record/7685409, {"references":["Wu, C. F. (1973) New species of Chinese stoneflies (Order Plecoptera). Acta Entomologica Sinica, 16, 97 - 118.","Uchida, S. & Isobe, Y. (1989) Styloperlidae, stat. nov. and Microperlinae, subfam. nov. with a revised system of the family group Systellognatha (Plecoptera). Spixiana, 12, 145 - 182.","Stark, B. P. & Sivec, I. (2007) A synopsis of Styloperlidae (Insecta, Plecoptera) with description of Cerconychia sapa, a new stonefly from Vietnam. Illiesia, 3 (2), 10 - 16."]}

Kamimuria tenuilobata Li, Kong & Liu, 2020 http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:511244 Kamimuria tenuilobata: Li, Kong & Liu, 2020: 363. Material examined: 3 males, China: Fujian Province, Wuyishan City, Mount Wuyi, on the way from Sangang to Yiliping, Tongmu Bridge, 240 m, 27.746808 N, 117.688634 E, 2021-VI-1 ~3, leg. Huo Qing-Bo, Yang Yu-Ben. Distribution: China (Fujian)., Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 277, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106, {"references":["Li, W. H., Kong, F. B. & Liu, S. Q. (2020) New and little known species of Kamimuria (Plecoptera: Perlidae) from Fujian of China. Zootaxa, 4809 (2), 363 - 373. https: // doi. org / 10.11646 / zootaxa. 4809.2.7"]}

Kamimuria circumspina Li, Mo & Yang, 2019 http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:508121 Kamimuria circumspina: Li et al. 2019: 139; Yan et al. 2021: 555. Distribution: China (Guizhou, Fujian)., Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 274, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106, {"references":["Li, W. H., Mo, R. R. & Yang, J. (2019) An interesting new species of Kamimuria (Plecoptera: Perlidae) from China, with notes on K. grandispinata Du & Sun. Zootaxa, 4700 (1), 139 - 145. https: // doi. org / 10.11646 / zootaxa. 4700.1.8","Yan, Y. H., Kong, F. B. & Li, W. H. (2021) A new species of Kamimuria (Plecoptera: Perlidae) from China, with notes on K. circumspina Li, Mo, & Yang, 2019. Zootaxa, 4927 (4), 549 - 558."]}

Kamimuria sparsula Du, 2001 http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:2391 Kamimuria sparsula: Du, 2001: 79; Sivec & Stark, 2008: 137; Stark & Sivec, 2013: 117; Yang & Li, 2018: 31. Distribution: China (Zhejiang)., Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 277, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106, {"references":["Du, Y. Z., Sivec, I. & Zhao, M. S. (2001) Plecoptera. In: Wu, H. & Pan, C. W (Eds.), Insects of Tianmushan National Nature Reserve. Science Press, Beijing, pp. 69 - 80.","Sivec, I. & Stark, B. P. (2008) New species of Kamimuria Klapalek (Plecoptera: Perlidae) from Thailand and Vietnam, with notes on Chinese species. Illiesia, 4 (12), 110 - 138.","Stark, B. P. & Sivec, I. (2013) Kamimuria gressitti, a new stonefly species from China (Plecoptera, Perlidae), and new records of K. atra from Vietnam. Illiesia, 9 (11), 116 - 121.","Yang, D. & Li, W. H. (2018) Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp."]}

Kamimuria simplex (Chu, 1929) http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:7456 (Figs. 1–4) Perla simplex: Chu, 1929: 88; Claassen, 1940: 145. Kamimuria simplex: Wu, 1938: 200; Du, Sivec & He, 1999: 61; Sivec & Stark, 2008: 137; Stark & Sivec, 2013: 117, nomen dubium; Yang & Li, 2018: 31. Supplementary description: Male coloration mostly dark brown to black (Fig. 1A); area between eyes to ocellar triangle dark and ventrally most parts of head and thorax yellowish (Fig. 1A–B). Male metasternum and sterna 3–7 with setal brushes (Fig. 1A). Terga 1–7 unmodified. Sensilla basiconica patches occur both as a round dark spot present on posterior tergum 8 and a median longitudinal dark area of tergum 9 that is much denser (Fig. 2A). Hemitergal lobes are slender, hooklike, extending backward to the posterior margin of tergum 9 (Fig. 2A). Aedeagus membranous; basal half with paired patches of large spines mediolaterally on the swellings; distal half with two paired swellings (Fig. 2B–C), the apical pair are larger than the basal pair; apex with dense fine spines ventrally, and a pair of ventrolateral patches of thicker and long spines arranged in “C” shaped semicircles (Fig. 2D). Female coloration similar to male (Fig. 3A–B). Abdomen brown; sterna 6–8 slightly sclerotized medially. Subgenital plate with a pair of posterolateral lobes of which apex rounded and adjacent to each other; the notch between the lobes “Ω” shaped, darker than other parts of the plate (Fig. 4). Nymph: Unknown. Egg: Unknown. Material examined: 12 males, 2 females, China: Fujian Province, Wuyishan City, Mount Wuyi, on the way from Sangang to Yiliping, Tongmu Bridge, 240 m, 27.746808 N, 117.688634 E, 2021-V-15, leg. Huo Qing-Bo, Zhao Meng-Yuan. Distribution: China (Zhejiang, Fujian). Remarks: In the area close to the type locality, our specimens ar e the onl y known Kamimuria with black body color and bright yellow anterior margin of wings, which best match the original description of Chu (1929) and Wu (1938). The species was considered as nomen dubium by Sivec & Stark (2008) and Stark & Sivec (2013) but listed as valid by Yang & Li (2018). We agree with the latter opinion since this distinctive species can be recognized on the basis of its original description., Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on pages 274-277, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106, {"references":["Chu, Y. T. (1929) Descriptions of four new species and one new genus of stoneflies in the family Perlidae from Hangchow. The China Journal, 10, 88 - 92.","Claassen, P. W. (1940) A Catalogue of the Plecoptera of the World. Memoirs of the Cornell University Agricultural Experiment Station, 232, 1 - 235.","Wu, C. F. (1938) Plecopterorum sinensium: A monograph of stoneflies of China (Order Plecoptera). Yenching University, Peiping, 225 pp.","Du, Y. Z., Sivec, I. & He, J. H. (1999) A checklist of the Chinese species of the family Perlidae (Plecoptera: Perloidea). Acta Entomologica Slovenica, 7, 59 - 67.","Sivec, I. & Stark, B. P. (2008) New species of Kamimuria Klapalek (Plecoptera: Perlidae) from Thailand and Vietnam, with notes on Chinese species. Illiesia, 4 (12), 110 - 138.","Stark, B. P. & Sivec, I. (2013) Kamimuria gressitti, a new stonefly species from China (Plecoptera, Perlidae), and new records of K. atra from Vietnam. Illiesia, 9 (11), 116 - 121.","Yang, D. & Li, W. H. (2018) Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp."]}

Kamimuria robusta Wu, 1948 http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:2357 Kamimuria robusta: Wu 1948: 268; Stark & Sivec 2013:117; Yang & Li 2018: 31; Li et al. 2020: 371. Distribution: China (Fujian)., Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 274, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106, {"references":["Wu, C. F. (1948) Third supplement to the stoneflies of China (Order Plecoptera). Peking Natural History Bulletin, 16, 265 - 272.","Stark, B. P. & Sivec, I. (2013) Kamimuria gressitti, a new stonefly species from China (Plecoptera, Perlidae), and new records of K. atra from Vietnam. Illiesia, 9 (11), 116 - 121.","Yang, D. & Li, W. H. (2018) Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp.","Li, W. H., Kong, F. B. & Liu, S. Q. (2020) New and little known species of Kamimuria (Plecoptera: Perlidae) from Fujian of China. Zootaxa, 4809 (2), 363 - 373. https: // doi. org / 10.11646 / zootaxa. 4809.2.7"]}

Kamimuria shiae Li, Kong & Liu, 2020 http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:511243 Kamimuria shiae: Li et al. 2020: 363. Distribution: China (Fujian)., Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on page 274, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106, {"references":["Li, W. H., Kong, F. B. & Liu, S. Q. (2020) New and little known species of Kamimuria (Plecoptera: Perlidae) from Fujian of China. Zootaxa, 4809 (2), 363 - 373. https: // doi. org / 10.11646 / zootaxa. 4809.2.7"]}

Kamimuria tienmushanensis Wu, 1938 http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:2348 (Figs. 5–14) Kamimuria tienmushanensis: Wu, 1938: 53; Sivec & Stark, 2008: 137, nomen dubium; Yang & Li, 2018: 32. Supplementary description: Male coloration mostly dark brown (Fig. 5A–C) to black (Fig. 5D). Male head with Tshaped dark spot on the ocellar area to anterior to the frontoclypeus (Figs. 6–7). Pronotum has paired bright patterns at the two sides of middle line (Figs. 6A–C, 7A), or completely dark brown (Fig. 7B–C). Metasternum and sterna 3–7 with setal brush (Figs. 5C–D). Abdomen brown (Figs. 8–10), terga 1–7 unmodified; terga 1–4 with pale pattern except the lateral margins, and the paler areas with “M” shape on terga 5–6 (Fig. 8). Terga 8–10 usually dark brown, with few paler parts. Sensilla basiconica patch occurs on median terga 8–9 (Figs. 9A–C, 10A–D), but that on tergum 8 with few sensillae or absent in some individuals (Figs. 9A, 9C). Hemitergal lobes slender, hook-like and straight, extending backward to the posterior margin of tergum 9, sometimes heavily curved outward (Figs. 8–10). Aedeagus membranous and simple in structure (Figs. 11–12); basal half with a paired patches of mediolateral swellings that covered by large spines (Figs. 11A–B, 12A–B, 12D–E); distal half with a pair of dorsal swellings covered by fine spines ventrally (Figs. 11C, 12C, 12F); apex finger-like (can be everted only by soaking for long time in KOH solution), without spines (Fig. 11A–C). Female coloration similar to males (Figs. 13A–B). Abdomen brown, sterna with paired round dark spots. Subgenital plate heavily sclerotized with a pair of posterolateral lobes of which apex rounded and adjacent to each other; the notch between the lobes is “V” shaped (Fig. 14). Nymph: Unknown. Egg: Unknown. Material examined: 10 males, 3 females (ICYZU), China, Zhejiang Province, Hangzhou City, Linan District, Taihuyuan, 933 m, 30.404167 N, 119.561383 E, 2017– V –4, leg. Huo Qing-Bo, Shen Yue, Wang Ji-Rui; 2 males (ICYZU), China, Zhejiang Province, Anji County, Mt. Longwang (Longwangshan), No. 1 Power Station, 436 m, 30.410100°N, 119.415083°E, 2018–IV–21, leg. Huo Qing-Bo, Gao Peng; 18 males (ICYZU), Zhejiang Province, Longquan City, 395 m, 28.117778°N, 119.030278°E, 2021-IV, leg. Yang Yu-Ben; 10 males, 2 females (ICYZU), Fujian Province, Wuyishan City, Mount Wuyi, on the way from Sangang to Yiliping, Tongmu Bridge, 240 m, 27.746808 N, 117.688634 E, 2021-V-15, leg. Huo Qing-Bo, Zhu Bin-Qing, Xiang Ya-Nan, Chen Zhi-Qiang. Distribution: China (Zhejiang, Fujian). Remarks: This species is newly recorded in Fujian. Similar to the case of K. simplex, we agree with treating this species as a valid and recognizable species., Published as part of Huo, Qing-Bo, Xiang, Ya-Nan, Rehman, Abdur, Du, Yu-Zhou, Zhu, Bin-Qing & Murányi, Dávid, 2022, Review of Kamimuria (Plecoptera: Perlidae) from Zhejiang and Fujian provinces, China, with notes on the morphological variability of K. tienmushanensis Wu, 1938, pp. 273-284 in Zootaxa 5214 (2) on pages 277-278, DOI: 10.11646/zootaxa.5214.2.7, http://zenodo.org/record/7385106, {"references":["Wu, C. F. (1938) Plecopterorum sinensium: A monograph of stoneflies of China (Order Plecoptera). Yenching University, Peiping, 225 pp.","Sivec, I. & Stark, B. P. (2008) New species of Kamimuria Klapalek (Plecoptera: Perlidae) from Thailand and Vietnam, with notes on Chinese species. Illiesia, 4 (12), 110 - 138.","Yang, D. & Li, W. H. (2018) Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp."]}

Perlodinella microlobata Wu, 1938 http://lsid.speciesfile.org/urn:lsid: Plecoptera.speciesfile.org:TaxonName:737 Perlodinella microlobata: Wu, 1938, 55; Yang & Li, 2018, 52. Adult habitus: See Wu (1938). The original illustrations of terminalia of type materials are shown in Fig. 1. Supplementary description: In the specimen from Qinghai, male coloration varies from dark brown to black (Fig. 2). Head mostly black, yellow spots only present between the hind ocelli and median occiput (Fig. 3A). Pronotum with a yellow median band (Fig. 3A). Posterior margin of male tergum 9 with a median swelling covered by a horizontal oval patch of sensilla basiconica; tergum 10 caudally constricted and extended upwards, apex bearing a triangular patch of sensilla (Fig. 4A–B). Paraproct subtriangular, inner base with darker spot; apex membrane but without obvious apical sclerite (Fig. 4C). Epiproct membranous, with a few sparse dorsal spines and dense ventral asperities (Figs. 3B–C, 5A–C). Penis membranous, bearing dense basal and subterminal spines (Fig. 5D). For the specimen from Sichuan, the male coloration is brownish (Fig. 6) and the pattern of head is similar with the male from Qinghai (Fig 7A). The posterior margin of tergum 9 and median sternum 9 have paler coloration (Figs. 7B–C, 8A–B). Paraprocts are darker on the base (Fig. 8C). Because these materials have been soaked in 75% alcohol for more than 10 years, the body color is much lighter than the fresh specimen from Qinghai. Females from Sichuan have coloration patterns that are similar to males (Figs. 9, 10A). The subgenital plates is sclerotized medially (Fig. 10B–C), with an outline same to the illustrations of Wu (1938) (Fig. 1). Nymph: Unknown. Mature egg: General color brown. Wide and trilateral, with three longitudinal ridges; surface except the ridges covered by dense asperities; each side of the egg with 3–6 short transverse rows of micropyles (Fig. 11A, C). Collar is a short brown ring, cylindrical with a broad base. Anchor flat, without massive stem, base evenly covered with large globular bodies (Fig. 11A–B). Material examined: 1 male, China, Qinghai Province, Haixi Mongol and Tibetan Autonomous Prefecture, Tianjun County, 2021-VII-13, 37.568689°N, 98.657256°E, 3545 m, leg. Huo Qing-Bo (ICYZU). 1 male, 3 females, China, Sichuan Province, Garze Tibetan Autonomous Prefecture, Shiqu County, 2009-VI-29, 32.838611°N, 98.376944°E, 4200 m, leg. Qian Yu-Han (ICYZU). Distribution: China (Gansu, Qinghai, Sichuan, Shanxi, Liaoning) (Wu 1938, Yang & Li 2018). Remarks: In Tianjun County, the sole male of P. microlobata was collected with several P. kozlovi Klapálek, 1912 and Tibetisoperla wangluyui together in the same environment. Perlodinella microlobata may emerge much later than P. kozlovi in general. In addition, the specimens of P. microlobata from Shanxi and Liaoning mentioned by Wu (1938) were all females, without collecting any associated males. Considering that the female features may be variable (Huo et al. 2020, 2022), the validity of the distribution record in Shanxi and Liaoning is doubtful and needs further study., Published as part of Huo, Qing-Bo, Rehman, Abdur, Du, Yu-Zhou & Chen, Zhen-Ning, 2022, Rediscovery of Perlodinella microlobata Wu, 1938, with notes on Tibetisoperla sclerotica Yan, Chen, Bozdogan & Li, 2022 (Plecoptera: Perlodidae), pp. 26-34 in Zootaxa 5205 (1) on pages 27-32, DOI: 10.11646/zootaxa.5205.1.2, http://zenodo.org/record/7285772, {"references":["Wu, C. F. (1938) The stoneflies of China (Order Plecoptera). Bulletin of the Peking Society of Natural History, 13 (1), 53 - 87.","Yang, D. & Li, W. H. (2018) Species catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp.","Klapalek, F. (1912) Plecopteres I. Fam. Perlodidae. Collections Zoologiques du Baron Edm. de Selys-Longchamps, 4 (1), 1 - 66.","Huo, Q. B., Chen, Z. N., Kong, X. B. & Du, Y. Z. (2020) New records and a confirmation of three perlodid species in China, with additional notes and images of Rauserodes epiproctalis (Zwick, 1997) (Plecoptera: Perlodidae). Zootaxa, 4808 (3), 455 - 474. https: // doi. org / 10.11646 / zootaxa. 4808.3.3"]}

Huo, Qing-Bo, Rehman, Abdur, Du, Yu-Zhou, Chen, Zhen-Ning (2022): Rediscovery of Perlodinella microlobata Wu, 1938, with notes on Tibetisoperla sclerotica Yan, Chen, Bozdogan & Li, 2022 (Plecoptera: Perlodidae). Zootaxa 5205 (1): 26-34, DOI: https://doi.org/10.11646/zootaxa.5205.1.2

Sweltsa QL 1 [temporary name] Tibetisoperla sclerotica: Yan, Chen, Bozdogan & Li, 2022, 125 (misidentification, the female and egg of this species unknown). Supplementary description: Female head (lateral occiput) and median pronotum with rugosities (Fig. 12A); wing veins typical in this genus (Fig. 12B); subgenital plate triangular, with a large median notch (Fig. 12C). Male: Unknown. Nymph: Unknown. Mature egg: General color brown. Oval in shape, collar absent. Length 370.7 μm, width 83.2 μm (n = 1). Chorion surface rough, irregularly covered with tiny shallow pits (Fig. 12D–E). Material examined: 5 females, China, Qinghai Province, Qilian County, Zhamashigou, 2021-VII-9, 38.155274°N, 100.022593°E, 3010 m, leg. Huo Qing-Bo (ICYZU), the same locality and date with Yan et al. (2022). Distribution: China (Qinghai). Remarks: The subgenital plate of these females is most similar to Sweltsa ligula Rehman, Huo & Du, 2022. The egg of S. ligula lacks a collar, yet the morphology is typical in this genus and also similar to several American species (Stark & Baumann, 2007). The female adults often occurred under the rocks near the stream, but seldom inhabit in the riparian plants (Fig. 13)., Published as part of Huo, Qing-Bo, Rehman, Abdur, Du, Yu-Zhou & Chen, Zhen-Ning, 2022, Rediscovery of Perlodinella microlobata Wu, 1938, with notes on Tibetisoperla sclerotica Yan, Chen, Bozdogan & Li, 2022 (Plecoptera: Perlodidae), pp. 26-34 in Zootaxa 5205 (1) on pages 32-33, DOI: 10.11646/zootaxa.5205.1.2, http://zenodo.org/record/7285772, {"references":["Yan, Y. H., Chen, Z. N., Bozdodan, H. & Li, W. H. (2022) The species of Tibetisoperla (Plecoptera: Perlodidae). European Journal of Taxonomy, 823, 125 - 140.","Huo, Q. B., Du, Y. Z., Zwick, P. & Muranyi, D. (2022) Notes on Perlodinella Klapalek, 1912 (Plecoptera: Perlodidae) with a new species and a new synonym. Zootaxa, 5162 (4), 378 - 396.","Stark, B. P. & Baumann, R. W. (2007) Sweltsa yurok (Plecoptera: Chloroperlidae), A new Stonefly from California, U. S. A. Illiesia, 3 (10), 95 - 101."]}

Key to Sinacroneuria males from Zhejiang Province 1. Head without dark spot in ocellar triangle.................................................................. 2 -. Head with dark spot in ocellar triangle..................................................................... 3 2. Paraproct form blunt uncinate process; aedeagus not described (Wu 1938)........................... S. quadriplagiata -. Paraproct recurved upward to be pointed process (Fig. 1b)........................................... S. parallela 3. Sensilla basiconica patch of tergum 10 mostly fused (Fig. 2d)......................................... S. complana -. Sensilla basiconica patch of tergum 10 separated............................................................ 4 4. Sensilla basiconica patch of tergum 9 separated (Fig. 3 in Yang & Yang, 1995)........................... S. orientalis -. Sensilla basiconica patch of tergum 9 mostly fused.......................................................... 5 5. Aedeagal Y-arms almost straight......................................................................... 6 -. Aedeagal Y-arms curved............................................................................... 7 6. Apex of aedeagal Y-arms closed to each other (Fig. 4 in Yang and Yang 1998)................................. S. yiui -. Apex of aedeagal Y-arms separate from each other (Fig. 12 in Yang & Yang, 1998)........................... S. sinica 7. Lateral sclerites of aedeagal middle part folded inward (Fig. 16 in Yang and Yang 1998)......................... S. wui -. Lateral sclerites of aedeagal without folded................................................................ 8 8. Y-arms extended into S-shape and apex closed (Fig. 3d).......................................... S. longiprojecta -. Y-arms curved outside, closed in the middle and apex separated (Fig. 8 in Yang and Yang 1998)........ S. longwangshana, Published as part of Xiang, Ya-Nan, Huo, Qing-Bo & Du, Yu-Zhou, 2022, Three new species of Sinacroneuria Yang & Yang, 1995 (Plecoptera: Perlidae) from Zhejiang Province, southeastern China, pp. 487-493 in Zootaxa 5175 (4) on page 492, DOI: 10.11646/zootaxa.5175.4.6, http://zenodo.org/record/7006513, {"references":["Wu, C. F. (1938) Plecopterorum sinensium: A monograph of stoneflies of China (Order Plecoptera). Yenching University, Beijing, 225 pp.","Yang, C. K. & Yang, D. (1995) A new genus and new species of Plecoptera from east China (Perlidae: Acroneuriinae). Entomological Journal of East China, 4, 1 - 2.","Yang, D. & Yang, C. K. (1998) Plecoptera: Styloperlidae, Perlidae and Leuctridae. Insects of Longwangshan, 8, 40 - 46."]}

Sinacroneuria parallela Xiang & Du, sp. nov. Figs. 1a–1e Adult habitus. General body color light brown. Head light brown without dark spot; triocellate, lateral ocelli margined by black pigmentation, anterior ocellus smaller (Fig. 1a). Antenna yellow brown and palpi yellow brown. Pronotum light brown, narrower behind, with pale rugosities (Fig. 1a). Abdominal segments pale brown. Legs yellowish. Wings hyaline with veins brown. Male. Body length 13.2–14.3 mm, forewing length 16.5–17.8 mm, hindwing length 14.8–15.8 mm (n = 4). Tergum 9 with a patch of sensilla basiconica posteriorly; sensilla basiconica patch divided on tergum 10, distance between patches approximately equal to the patch diameter (Fig. 1b). Paraprocts sclerotized, recurved upward and pointed apically (Fig. 1b). Sternum 9 produced as a subgenital plate that nearly overlaps the terminus of abdomen; oval hammer present medially at posterior margin (Fig. 1c). Aedeagus mostly membranous. Aedeagal sclerites highly sclerotized, stem ca. 0.5 times as long as Y-arms. Y-arms nearly straight and parallel to each other, with tiny spines on its anterior 1⁄4 length and apex sharp; lateral sclerites slightly sclerotized, extend outward and forming a 30° angle with the straight line where the stem is located; base connected with stem, near the base of the lateral side with a slender sclerite (Fig. 1d); medial sclerite nearly same length as Y-arms; the base is bent downward into an ellipse, the end is slender and rod-shaped, without spines on the surface (Fig. 1e). Female. Unknown. Type material. Holotype: male, China: Zhejiang Province, Longquan city, Fengyang Moutain, 1290 m, 2008- V-12, leg. Liu Sheng-Long. Paratypes: 3 males, Zhejiang Province, Fengyang Moutain, 1430 m, 2007-V-4, leg. Liu Sheng-Long. Etymology. The name refers to the parallel Y-arms of aedeagus. Distribution. China, Zhejiang Province. Diagnosis. The aedeagal sclerite of this species is similar to that of S. yiui. The Y-arms of both species are nearly straight. The apex of Y-arms in S. yiui (Fig. 4 in Yang and Yang 1998) are closer to each other in contrast to being nearly parallel in S. parallela (Fig. 1d). Additionally, the head of S. yiui has a dark spot dorsally (Fig. 1 in Yang and Yang 1998) while absent in the new species., Published as part of Xiang, Ya-Nan, Huo, Qing-Bo & Du, Yu-Zhou, 2022, Three new species of Sinacroneuria Yang & Yang, 1995 (Plecoptera: Perlidae) from Zhejiang Province, southeastern China, pp. 487-493 in Zootaxa 5175 (4) on pages 488-489, DOI: 10.11646/zootaxa.5175.4.6, http://zenodo.org/record/7006513, {"references":["Yang, D. & Yang, C. K. (1998) Plecoptera: Styloperlidae, Perlidae and Leuctridae. Insects of Longwangshan, 8, 40 - 46."]}

Sinacroneuria longiprojecta Du & Huo, sp. nov. Figs. 3a–3d Adult habitus. General body color yellow brown. Head yellow brown with an oval light brown spot covering two posterior ocelli; triocellate, lateral ocelli margined by black pigmentation, anterior ocellus smaller (Fig. 3a). Antenna yellow brown and palpi yellow brown. Pronotum yellow brown and quadrate, with obvious rugosities (Fig. 3a). Legs mostly brown. Wings hyaline with veins brown. Male. Body length 13 mm, forewing length 15.4 mm, hindwing length 14.6 mm (n = 1). Tergum 9 with a transverse patch of sensilla basiconica posteriorly; sensilla basiconica patch of tergum 10 divided medially, distance between patches ca. 0.5X diameter of the patch (Fig. 3b); paraprocts sclerotized, curved upward in a small triangular structure with sharp points (Fig. 3b). Sternum 9 with an oval hammer at the middle of the posterior margin (Fig. 3c). Aedeagus mostly membranous, aedeagal sclerites sclerotized, stem near 1/3 the length of Y-arms. Y-arms longer and extended to the outside in a long "S" shape, the apex curved inward and upward to be horn-like; lateral sclerites sclerotized basally, the width was ca. 2X twice of Y-arms, and apex pointed; medial sclerite absent (Fig. 3d). Female. Unknown. Type material. Holotype: male, China: Zhejiang Province, Hangzhou City, Tianmu Mountain, 1998-VI -22, leg. Du Jian. Etymology. The name refers to the longer Y-arms of aedeagus. Distribution. China, Zhejiang Province. Diagnosis. This new species is similar to S. dabieshana Li & Murányi, 2014. The apex of the Y-arms of S. longiprojecta sp. nov. is horn-like and curved inward and upward (Fig. 3d), but the Y-arms of S. dabieshana (Fig. 2d in Li et al. 2014) is divided from the base and extending outward does not form an S-shape and the lateral sclerites (Fig. 1f in Li et al. 2014) are not intersected with Y-arms in S. dabieshana.

Sinacroneuria complana Xiang & Du, sp. nov. Figs. 2a–2e Adult habitus. General body color yellow brown. Head yellowish with a light brown spot covering ocellar triangle; triocellate, lateral ocelli margined by black pigmentation, anterior ocellus smaller (Fig. 2a). Antenna yellow brown and palpi yellow brown. Pronotum rectangular with irregular rugosities (Fig. 2a). Legs mostly yellow brown. Wings hyaline with veins brown. Male. Body length 13.8–14.5 mm, forewing length 15.8–16.2 mm, hindwing length 14.0– 14.1 mm (n = 4). Tergum 9 with few sensilla basiconica posteriorly; tergum 10 bearing a larger patch of sensilla basiconica (Figs. 2b, 2d); paraprocts sclerotized, curved upward in a hook shape to the posterior margin of tergum 10 (Fig. 2d). Sternum 9 with an oval hammer at the middle of the posterior margin (Fig. 2c). Aedeagus mostly membranous. Aedeagal sclerites sclerotized, stem slender, length nearly same as Y-arms. Y-arms wide and flat, long and triangular in shape, connected with stem at near 1/2 of the length; base wide, apex concave and tapering outward and hook shaped; lateral sclerites slender and slightly sclerotized, the width was ca. 1/3 times of Y-arms; medial sclerite basally thick, apex tapering with tiny spines (Fig. 2e). Female. Unknown. Type material. Holotype: male, China: Zhejiang Province, Wenzhou City, Taishun County, Wuyanling National Nature Reserve, 680 m, 2005-V-7, leg. Wang Yi-Ping. Paratypes: 3 males, same data as the holotype. Etymology. The name complana (from the word complanate) refers to the sclerites of aedeagus that are wide and flat. Distribution. China, Zhejiang Province. Diagnosis. Sinacroneuria complana sp. nov. is similar to S. acuticornis Uchida, 2017 by sharing similar structural characteristics of the aedeagal Y-arms. The lateral sclerites of aedeagus of S. complana are slender and nearly equal to the Y-arms (Fig. 2e), while that in S. acuticornis are shorter and about 1/2 length of the Y-arms (Figs. 42–44 in Li et al. 2017). Additionally, the tergum 9 sensilla basiconica patch of S. complana (Fig. 2d) is markedly sparser compared to S. acuticornis (Fig. 38 in Li et al. 2017). Sinacroneuria complana sp. nov. is also easily separated from S. lateralis Sivec & Stark, 2020. The apex of Y-arms in S. lateralis (Fig. 1g in Sivec & Stark 2020) are more separated from each other yet closed to each other in S. complana (Fig. 2e).

Perlodinella epiproctalis (Zwick, 1997) (comb. nov.) Rauserella epiproctalis: Zwick, 1997: 489. Rauserodes epiproctalis: Zwick, 1999: 168; Yang & Li, 2018: 52; Huo, Chen, Kong & Du, 2020: 455. Adult habitus: See Zwick (1997, 1999) and Huo et al. (2020). Nymph: Mature male body length 17–20 mm (n = 3). Dorsum gray to olive green with some pale patterning; ventrally paler grey (Figs. 24–25). Body covered by short colorless hairs. Head with a large pale spot in front of the anterior ocellus extending onto the clypeus; M-line indistinct; interocellar area brown with small pentagonal, central pale spot, closed posteriorly; occiput with a pair of oval pale spots around the epicranial stem bordered by sinuate brownish rows behind each eye (Fig. 24A). Submental gills are short (Fig. 24B). Mandible bidentate, with 2 apical teeth and 3 subapical teeth; a patch of 15–18 hairs present ventral to the subapical teeth (Fig. 25A). Lacinia bidentate, apically narrow, basal half expanded; 12–14 submarginal setae present; 2–3 setae present ventral to the base of the subapical tooth and 2–3 setae at the juncture of the apical teeth (Fig. 25B). Paraglossae flat and fingerlike; glossa wide and semicircular, apex slightly truncated, with thick fine hairs (Fig. 25C). Thoracic segments rectangular with wide, pale, median stripes. Male wingpads very short. Legs with few scattered brown spinules on surface (Fig. 24A). Abdominal terga with two rows of large, oval, pale paramedial spots; spots are indistinct on tergum 10 (Fig. 24C–D). All abdominal segments have a few short, stout spinules that become more numerous on the sterna 6–10. Epiproct is already visible on mature nymphs (Fig. 25D). Paraprocts short, apex rounded (Fig. 24C–D). Cerci with dorsal fringe of fine, silky, colorless hairs; each cercal segment with an apical whorl of short brown setae (Fig. 25E). Mature female body length 22–25 mm (n = 5). Coloration and morphology similar to male (Fig. 26). Wingpads length regular (Fig. 26A). A horizontal sclerite is present on the posterior margin of sternum 8 of female (Fig. 26D). Egg: General color dark brown to black. Subglobular, with three obscure longitudinal ridges. Collar slender and more sclerotized, cylindrical with a broad base. Anchor mushroom-shaped, evenly covered with small globular bodies. Each side of the egg with 5-6 short transverse row of micropyles (Fig. 27). Material examined: The same collection sites were recorded in Huo et al. (2020); 8 males, 4 females, 10 nymphs, China, Qinghai Province, Haibei Tibetan Autonomous Prefecture, Menyuan Hui Autonomous County, Laohugou, 3549 m, 101.582778°E, 37.585556°N, 2021-VII-4, leg. Huo Qing-Bo, Zang Hao-Ming, Shen Rong-Rong; 11 males, 9 females, 8 nymphs, Qinghai Province, Qilian County, Longkong, 3425 m, 100.680833°E, 38.067500N, 2021-VII-5, leg. Huo Qing-Bo, Zang Hao-Ming. Distribution: China (Qinghai). Remark: Perlodinella epiproctalis is widespread in most of the basin of Datong River, western Qilian Mountains (Qilian, Menyuan and Datong counties), and is also the only Perlodinella species known to emerge in this area during July and August., Published as part of Huo, Qing-Bo, Du, Yu-Zhou, Zwick, Peter & Murányi, Dávid, 2022, Notes on Perlodinella Klapálek, 1912 (Plecoptera: Perlodidae) with a new species and a new synonym, pp. 378-396 in Zootaxa 5162 (4) on pages 390-391, DOI: 10.11646/zootaxa.5162.4.3, http://zenodo.org/record/6810221, {"references":["Zwick, P. (1997) Rauserella, a new genus of Plecoptera (Perlodidae), with notes on related genera. In: Landolt, P. & Sartori, M. (Eds.), Ephemeroptera & Plecoptera, Biology - Ecology-Systematics. MTL-Mauron + Tinguel Lachat SA, Fribourg, pp. 489 - 496.","Zwick, P. (1999) Notes on Plecoptera (22) Rauserodes nom. n. replacement name for Rauserella Zwick (Plecoptera: Perlodidae). Aquatic Insects, 21 (3), 168. https: // doi. org / 10.1076 / aqin. 21.3.168.4518","Yang, D. & Li, W. H. (2018) Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp.","Huo, Q. B., Chen, Z. N., Kong, X. B. & Du, Y. Z. (2020) New records and a confirmation of three perlodid species in China, with additional notes and images of Rauserodes epiproctalis (Zwick, 1997) (Plecoptera: Perlodidae). Zootaxa, 4808 (3), 455 - 474. https: // doi. org / 10.11646 / zootaxa. 4808.3.3"]}

Genus Perlodinella Klapálek, 1912 Perlodinella: Klapálek, 1912: 28; Wu, 1938: 28; 1973: 98; Illies, 1966: 388; Li & Murányi, 2015: 48; Yang & Li, 2018: 52; Chen, 2019: 297; Huo, Chen, Kong & Du, 2020: 455. Rauserella: Zwick, 1997: 489. Rauserodes: Zwick, 1999:168. (syn. nov.) Revised diagnosis: Body color and wings possibly are sexually dimorphic. Male tergum 10 narrow, greatly raised (Klapálek, 1912); epiproct developed, eversible and membranous; paraproct possibly eversible, membranous in apex; cercus with sharp teeth on basal segments., Published as part of Huo, Qing-Bo, Du, Yu-Zhou, Zwick, Peter & Murányi, Dávid, 2022, Notes on Perlodinella Klapálek, 1912 (Plecoptera: Perlodidae) with a new species and a new synonym, pp. 378-396 in Zootaxa 5162 (4) on page 379, DOI: 10.11646/zootaxa.5162.4.3, http://zenodo.org/record/6810221, {"references":["Klapalek, F. (1912) Plecopteres I. Fam. Perlodidae. Collections Zoologiques du Baron Edm. de Selys-Longchamps, 4 (1), 1 - 66.","Wu, C. F. (1938) The stoneflies of China (Order Plecoptera). Bulletin of the Peking Society of Natural History, 13 (1), 53 - 87.","Wu, C. F. (1973) New species of Chinese stoneflies (order Plecoptera). Acta Entomologica Sinica, 16 (2), 97 - 118.","Illies, J. (1966) Katalog der rezenten Plecoptera. Das Tierreich, Berlin, 82, 1 - 632.","Li, W. H. & Muranyi, D. (2015) A remarkable new genus of Perlodinae (Plecoptera: Perlodidae) from China, with remarks on the Asian distribution of Perlodinae and questions about its tribal concept. Zoologischer Anzeiger, 259, 41 - 53. https: // doi. org / 10.1016 / j. jcz. 2015.10.003","Yang, D. & Li, W. H. (2018) Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp.","Chen, Z. T. (2019) Perlodinella mazehaoi sp. nov., a new species of Perlodidae (Plecoptera) from Inner Mongolia of China. Zootaxa, 4651 (2), 297 - 304.","Huo, Q. B., Chen, Z. N., Kong, X. B. & Du, Y. Z. (2020) New records and a confirmation of three perlodid species in China, with additional notes and images of Rauserodes epiproctalis (Zwick, 1997) (Plecoptera: Perlodidae). Zootaxa, 4808 (3), 455 - 474. https: // doi. org / 10.11646 / zootaxa. 4808.3.3","Zwick, P. (1997) Rauserella, a new genus of Plecoptera (Perlodidae), with notes on related genera. In: Landolt, P. & Sartori, M. (Eds.), Ephemeroptera & Plecoptera, Biology - Ecology-Systematics. MTL-Mauron + Tinguel Lachat SA, Fribourg, pp. 489 - 496.","Zwick, P. (1999) Notes on Plecoptera (22) Rauserodes nom. n. replacement name for Rauserella Zwick (Plecoptera: Perlodidae). Aquatic Insects, 21 (3), 168. https: // doi. org / 10.1076 / aqin. 21.3.168.4518"]}

Perlodinella tibetensis Huo & Du sp. nov. Adult habitus: General body color dark brown to black (Figs. 12, 17). Triocellate, anterior ocellus small, distance between posterior ocelli almost equal to width of the eyes. Head black, with a small yellowish spot around each ocellus and an oval yellowish spot between the posterior ocelli. Pronotum black with pale rugosities, without any median stripe (Figs. 13, 19). Legs brownish. Abdominal segments dark brown to black. Male: Micropterous, forewing length 3–4 mm, hindwing length 2–3 mm, body length 11–13 mm (n = 6). Abdomen slightly sclerotized, bearing long yellowish hairs. Terga 8–9 without sensilla patches or sclerotized dots (Figs. 14–16). Tergum 10 yellowish and smooth medially; posterior margin heavily sclerotized, curved upward; sensilla basiconica arranged in a V-shape on the posterior margin (Figs. 15E–F, 16C). Paraproct divided into a subtriangular apical membrane with a typical sclerotized band, and a basic sclerite; apical half of the sclerite slender, hooklike, and curved outward, sharp on apex (Figs. 15D, 16C–D). The membranous epiproct bears sparse spines, divided into three isometric spherical lobes. The paired basal lobe swollen; apical lobe blunt apically (Fig. 14C–E). Penis (partially everted) membranous, dorsal base bearing small asperities (Fig. 15G). Female: Coloration similar to males (Fig. 17). Macropterous, forewing length 14–15 mm, hindwing length 12–13 mm, body length 13–15 mm (n = 12) or brachypterous, forewing length 9 mm, hindwing length 7 mm, body length 14 mm (n = 1). Yellow spots between the hind ocelli and median occiput, at least two patterns present on females (see Fig. 19). Wings pale yellowish to smoky gray, translucent; veins dark brown (Figs. 17–18). Abdomen dark brown; sterna yellowish laterally, with a pair of lateral dark spots; subgenital plate short and sclerotized, variable; median posterior margin heavily sclerotized and bilobate. There are four morphs of female subgential plates (Figs. 20A–D), with the posterior margin with a small median extension (Fig. 20A), posterior margin truncated (Fig. 20B), posterior margin with small lateral processes (Fig. 20C), and posterior margin M-shaped, the lateral process on each side longer and narrowed (Fig. 20D). Nymph: Unknown. Egg: General color brown. Slender, trilateral, with three longitudinal ridges (Fig. 21). Collar is a short brown ring, cylindrical with a broad base. Anchor mushroom-shaped with massive stem, evenly covered with more small globular bodies. Each side of the egg with 4–6 short transverse rows of micropyles. Under the observation by optical scopes, the egg of P. tibetensis has no obvious visible difference in shape or structure from P. kozlovi (Fig. 21 A–D) except the small globular bodies near the basic anchor are darker than others (Fig. 21 A). Etymology: The scientific name is a Latin adjective derived from the name of Tibet where it is the most widespread Perlodinella known in this area. Diagnosis: The new species can be distinguished by the completely black pronotum, the absence of sensilla basiconica on male tergum 9, V-shaped arrangement of sensilla basiconica on male tergum 10, and the outwardcurving male paraprocts. Type materials: Holotype: 1 male, Tibet Autonomous Region, China, XZZB-20-66, Longdangbo, Qiongguo Township, Zhongba County, 2020-VII-23, 29.769472°N, 83.926753°E, 4556 m. Paratypes: 4 males, 3 females, the same locality and data as the holotype; 2 males, 3 females, XZRT-20-79, Rutog Town, Rutog County, 2020-VII-25, 33.302156°N, 79.691631°E, 4288 m; 1 male, 2 females, XZGE-20-83, Jiamu River (riverside grassland, under the rocks), Shiquanhe Town, Gar County, 2020-VII-27, 32.436056°N, 80.203581°E, 4340 m; 1 female, XZGE-20-84, Yanhu Township, Gar County, Tibet 301 Provincial Highway North (Riverside grassland), 2020-VII-27, 32.403392°N, 82.407339°E, 4344 m; 7 males, 5 females, XZCQ-20-96, Meiduo Village, Quluo Township, Coqen County (riverside grassland, under the rocks), 2020-VII-29, 30.655397°N, 85.131839°E, 4751 m. Leg. Wang LuYu, Liu Piao, Yuan Tao, Hou Yan-Meng. Distribution: China (Tibet). Remarks: Adults of Perlodinella tibetensis occur in groups under rocks along the shoreline (Fig. 22). This species is distributed in the southwestern Tibet, while P. kozlovi only known in the junction of eastern Tibet with Sichuan and Qinghai (Fig. 23)., Published as part of Huo, Qing-Bo, Du, Yu-Zhou, Zwick, Peter & Murányi, Dávid, 2022, Notes on Perlodinella Klapálek, 1912 (Plecoptera: Perlodidae) with a new species and a new synonym, pp. 378-396 in Zootaxa 5162 (4) on pages 384-386, DOI: 10.11646/zootaxa.5162.4.3, http://zenodo.org/record/6810221

Perlodinella kozlovi Klapálek, 1912 Perlodinella kozlovi: Klapálek, 1912: 28; Wu, 1938: 28; 1973: 98; Claassen, 1940: 116; Ricker, 1952: 138; Illies, 1966: 388; Li & Murányi, 2015: 49; Yang & Li, 2018: 52. Description and data: See Klapálek (1912) and Wu (1938). Original illustration (Fig. 1) and type series of this species (Figs. 2–3) are shown below. Supplementary description: Male and female macropterous. General body color black, except ventral head and sides of female abdomen yellowish (Fig. 4). Yellow spots present between the hind ocelli and median occiput, sometimes also on clypeus (at least four patterns in male and two patterns in female, see Figs. 5, 9). Antennae are brown, palpi dark brown. Pronotum with a yellow median band. Wings brown, veins dark brown, sometimes slightly asymmetrical (Fig. 6). Legs and cerci mostly dark brown. Male: Terga 8–9 slightly sclerotized medially. Median hairs on tergum 8 thick and long. Tergum 9 bearing two sparse patches of sensilla, and a pair of small, sclerotized dots near the lateral margin. Tergum 10 sclerotized, caudally constricted and extended upwards, bearing multiple sensilla basiconica of similar size. Paraprocts divided into a basal sclerite and a subtriangular, eversible apical membrane covered with fine spines. Apical half of the sclerite slender, fingerlike, and straight, with a hook at tip (Figs. 3, 7–8). Epiproct membranous, with small, round, dorsal process on apex; ventral surface with asperities in a patch (Fig. 8B–C). Penis membranous, base with a pair of short arms bearing fine cuticular asperities; median part swelling and bearing larger asperities; apex bilobate, smooth on surface (Fig. 8C–E). Female: Coloration similar to males (Figs. 2, 4). There are two morphs of female subgenital plates, with the posterior margin either truncate (Fig. 9C) or M-shaped (Fig. 9D). Nymph: Unknown. Egg: General color brown to dark brown. Slender, trilateral, with three longitudinal ridges (Fig. 10). Collar is a short brown ring, cylindrical with a broad base. Anchor mushroom-shaped with massive stem, evenly covered with small globular bodies. Each side of the egg with 3–6 short transverse rows of micropyles. Material examined: Lectotype male (present designation), paralectotypes 1 male, 2 females, China, Sichuan Province, Kham area, Yangtze River Basin, Yalong River, approximately 33°N, 98°E (see Li & Murányi 2015), 1901-IV, leg. P. K. Kozlov (NMP); 18 males, 25 females, China, Qinghai Province, Haixi Mongol and Tibetan Autonomous Prefecture, Tianjun County, 2021-VII-13, 37.56869°N, 98.65726°E, 3545 m. Leg. Huo Qing-Bo, Zang Hao-Ming, Wang Ya-Meng, Sun Chen-Tao, Li Cong (ICYZU). Distribution: China (Tibet, Qinghai and Sichuan). Remarks: Specimens were found in groups under rocks along the broad river shoreline (Fig. 11). Tibetisoperla wangluyui Huo & Du, 2021 was also collected together with this species at the same time and environment., Published as part of Huo, Qing-Bo, Du, Yu-Zhou, Zwick, Peter & Murányi, Dávid, 2022, Notes on Perlodinella Klapálek, 1912 (Plecoptera: Perlodidae) with a new species and a new synonym, pp. 378-396 in Zootaxa 5162 (4) on pages 379-383, DOI: 10.11646/zootaxa.5162.4.3, http://zenodo.org/record/6810221, {"references":["Klapalek, F. (1912) Plecopteres I. Fam. Perlodidae. Collections Zoologiques du Baron Edm. de Selys-Longchamps, 4 (1), 1 - 66.","Wu, C. F. (1938) The stoneflies of China (Order Plecoptera). Bulletin of the Peking Society of Natural History, 13 (1), 53 - 87.","Wu, C. F. (1973) New species of Chinese stoneflies (order Plecoptera). Acta Entomologica Sinica, 16 (2), 97 - 118.","Claassen, P. W. (1940) A catalogue of the Plecoptera of the world. Agricultural Experiment Station Memoir 232. Cornell University Press, Ithaca, New York, 235 pp.","Ricker, W. E. (1952) Systematic studies on Plecoptera. Indiana University, Bloomington, Indiana, 200 pp.","Illies, J. (1966) Katalog der rezenten Plecoptera. Das Tierreich, Berlin, 82, 1 - 632.","Li, W. H. & Muranyi, D. (2015) A remarkable new genus of Perlodinae (Plecoptera: Perlodidae) from China, with remarks on the Asian distribution of Perlodinae and questions about its tribal concept. Zoologischer Anzeiger, 259, 41 - 53. https: // doi. org / 10.1016 / j. jcz. 2015.10.003","Yang, D. & Li, W. H. (2018) Species Catalogue of China. Vol. 2. Animals, Insecta (III), Plecoptera. Science Press, Beijing, 71 pp."]}

Rhopalopsole GR [temporary name] Description: Body length 10–12 mm (number = 8). Body color light yellow to white, without dark pattern (Fig. 2A–B); body smooth on surface, bearing sparse, short setae. Triocellate; compound eyes reduced into small spots, with length only three times that of the ocellus (Fig. 3A–B). Mouthparts mostly sclerotized. Lacinia short, inner edge on apex divided into 3 large teeth, followed by a row of hair brushes. Glossae slightly shorter than the paraglossae (Fig. 3C–E). Pronotum rectangular, typical of this family. Mesothorax and metathorax are weakly sclerotized, but the wing pads and complex ventral sclerites are still obvious in the HDR (High Dynamic Range) images (Fig. 4A– D). The results of morphological study showed that these features, especially the mouthparts and thoracic sclerites, match those of the genus Rhopalopsole. Materials examined: 8 nymphs, China, Guizhou Province, Libo County, 2021-X-1, 25°18′36″ N, 107°55′12″ E, 785 m, leg. Wang Qi-Ming, Guo Xiao-Lei (ICYZU)., Published as part of Huo, Qing-Bo, Wang, Qi-Ming, Guo, Xiao-Lei, Rehman, Abdur, Yang, Yu-Ben & Du, Yu-Zhou, 2022, The first cavernicolous Leuctridae (Insecta: Plecoptera) nymph from Guizhou China, pp. 290-298 in Zootaxa 5162 (3) on page 293, DOI: 10.11646/zootaxa.5162.3.6, http://zenodo.org/record/6810743

The genus Sweltsa is a small to medium-sized stonefly with distinct coloured wings, giving the species the common name of green stoneflies. It belongs to the family Chloroperlidae. This genus includes more than 55 species world wide, 14 of which have been reported from China.A new species of the genus Sweltsa Ricker, 1943, Sweltsa liupanshana Rehman, Du & Huo sp. nov. from Ningxia Hui Autonomous Region, Liupan Mountain, China is described; this is the second record of Sweltsa from Ningxia Hui Autonomous Region. In addition, the first female description and male supplementary description of Sweltsa hamula Chen & Du, 2017 from Sichuan Province are provided. Diagnosis, description and colour illustration of the new species and of Sweltsa hamula are provided and the morphological characteristics are compared with closely-related species.

Key to the males of Sweltsa recurvata group 1 Epiproct erectile, pronotum without black medial band....................................................... 2 - Epiproct flat or rod shape, pronotum with black medial band................................................... 3 2 Epiproct basely broad and tapered to the apex; apex expanded ventrally but generally flattened laterally (figs. 11–13 in Kondratieff & Baumann 2009).................................................................... Sweltsa occidens - Epiproct constricted sub apically, apex expanded and rounded; in lateral aspect, club-like but not flattened (figs. 18–22 in Kondratieff & Baumann 2009).................................................................. Sweltsa durfeei 3 Pronotum brown, epiproct elongate, dorsally and laterally almost parallel from base to apex, tip pointed (figs. 187–188 in Wu 1938)................................................................................. Sweltsa recurvata - Pronotum with a broad black medial band, epiproct not as above................................................ 4 4 Head with several black spots, epiproct sclerotized, completely narrowed medially, apex rounded and tip cone-shaped (figs. 508–510 in Teslenko and Zhiltzova 2009)..................................................... Sweltsa insularis - Head with or without black spot, epiproct slightly constricted medially........................................... 5 5 Epiproct long and narrow, tergum 9 without dumbbell-shaped brown spot........................................ 6 - Epiproct rod-shaped, tergum 9 with dumbbell-shaped brown spot............................................... 7 6 Head with broad black spot, pronotum with a black medial band; epiproct slightly constricted medially, apex leaf shape dorsally (figs. 504–506 in Teslenko and Zhiltzova 2009)................................................ Sweltsa colorata - Head and pronotum completely brown; epiproct broad at base, constricted medially, apex wide and spoon shape dorsally (figs. 1–3 in Rehman et al. 2022).................................................................. Sweltsa ligula 7 Head with triangular black spot, pronotum with black medial stripe; epiproct rod-like, sub apically wide with a rounded tip dorsally, sub apically widened laterally (figs. 1–7 in Stark & Sivec 2009)................................ Sweltsa wui - Head without black spot, pronotum with asymmetrical rugosities; epiproct oblong, laterally constricted almost to two-thirds, apically widened (Figs. 1–3)...................................................... Sweltsa lateoblonga sp. nov., Published as part of Rehman, Abdur, Huo, Qing-Bo & Du, Yu-Zhou, 2022, A new species and new species group of Sweltsa Ricker, 1943 (Plecoptera: Chloroperlidae), pp. 60-70 in Zootaxa 5154 (1) on page 69, DOI: 10.11646/zootaxa.5154.1.3, {"references":["Kondratieff, B. C. & Baumann, R. W. (2009) A contribution to the knowledge of Sweltsa exquisita (Frison) and S. occidens (Frison) and description of a new species of Sweltsa from the northern Rocky Mountains, U. S. A. (Plecoptera: Chloroperlidae). Illiesia, 5, 20 - 29.","Wu, C. F. (1938) Plecopterorum sinensium: A monograph of the stoneflies of China (Order Plecoptera). Yenching University, Beijing, 225 pp.","Teslenko, V. A. & Zhiltzova, L. A. (2009) Key to the stoneflies (Insecta, Plecoptera) of Russia and adjacent countries. Imagines and nymphs. Dalnauka, Vladivostok, 382 pp.","Rehman, A., Huo, Q. B. & Du, Y. Z. (2022) A new species of the genus Sweltsa Ricker, 1943 (Plecoptera, Chloroperlidae) from Guizhou Province, China. Biodiversity Data Journal, 10, e 80433. https: // doi. org / 10.3897 / BDJ. 10. e 80433","Stark, B. P. & Sivec, I. (2009) Sweltsa wui and Haploperla valentinae (Plecoptera: Chloroperlidae), two new stoneflies from Sichuan Province, China. Illiesia, 5, 156 - 163."]}

Sweltsa lateoblonga Rehman, Du & Huo sp. nov. (Figs. 1–4) Adult habitus: Triocellate. General body color pale, yellow to brown in alcohol. Head pale brown, compound eyes black, ocelli greyish with black margins, anterior ocellus paler; an obscure interocellar brown spot present, antennae and palpi light brown (Fig. 1A). Pronotum with a solid median stripe bearing asymmetrical rugosities and covered with dark brown margins (Fig. 1A). Thoracic sclerite paler, mesonotum and metanotum have dark brown U-shaped markings; without a dark medial stripe in the middle (Fig. 2A). Wings transparent, legs pale. Abdominal terga 1–8 each bearing brown longitudinal stripes, tergum 1–4 dorsally with triangular stripe and laterally with brown bands, tergum 5–7 with trapezoidal stripe; tergum 8 stripe is rounded and smaller than the other stripes. Cerci pale brown, basal segment brown, terminal segments paler and covered with long setae (Fig. 2A). Male: Body length 9.0–10.0 mm, forewing length 7.5–8.0, hindwing length 6.5–7.0 (n = 7). Tergum 9 without any transverse process, anteriorly with paired brown spots and without median excavation on posterior margins (Fig. 1B). Tergum 10 with a pair of distinct dark brown transverse lateral bands, the medial area of the bands greatly enlarged in the shield-like darkly sclerotized basal anchor; the shield dorsally bears two sclerotized posterolateral arms, the anchor wider than long, and with broad typical trapezoidal membranous groove and paragential plates between hemiterga (Fig. 1B). Epiproct is broad, widely oblong, but longer than its basal width; medially slightly constricted, apically broad in dorsal view (Figs. 3A–B), the basal ring with dorsal and lateral bare areas (Fig. 3B); sclerotized dorsally, dark brown from base to the median area, apically yellowish. Basal sclerite of epiproct bears two oval shape patches; in lateral view, margins are much constricted from the base to the apical third, sub-apically wide and rounded (Figs. 3C–D). The apex is smooth, bearing a shiny triangular shape cap, but most of the dorsal and ventral surface is covered with golden brown, appressed setae (Figs. 3A–D). The aedeagus is completely membranous and subtriangular in shape (Fig. 1B). The dorsal and dorsolateral lobes are slightly rounded (Fig. 1C). The posterior portion of the aedeagus bears a pair of nipple-shaped lobes mesally, each covered with numerous long hairs (Fig. 1D). Female: Body length 9.5–10.5 mm, forewing length 8.0–9.0 mm, hindwing length 7.5–8.0 mm (n = 9). Habitus is generally similar to the male. Abdominal tergum 1–7 dorsally with medial stripes (Fig. 2B). The posterior margins of sternum 8 bear a subtriangular subgenital plate ventrally, reaching near the middle of sternum 9; the posterior tip of the subgenital plate is broadly rounded and connected to preceding segments that are slightly incised at the base (Figs. 4B–D). Nymph and egg: Unknown Type materials: Holotype male, China, Sichuan Province, Pingwu County, Wanglang, Nature Reserve, Changbaigou, 2016-VII-17, N 32.1577, E 104.0269, 2564 m, Leg. Du Yu-Zhou, Zhao Meng-Yuan, Qing-Bo Huo; Paratypes, 7 males, 9 females same data as for the holotype. Distribution: China (Sichuan Province). Etymology: The name of the new species refers to the shape of the epiproct that is widely oblong. The Latin “ lateoblonga ” means widely oblong. Remarks: The new species is closely similar to S. wui and S. yunnan Tierno de Figueroa & Fochetti, 2002. The new species can be distinguished from S. wui by the head, pronotum pigmentation, and the epiproct. The head of S. wui bears a distinct interocellar triangular spot and the pronotum has a dark median band (fig. 1 in Stark & Sivec 2009). In contrast, the head of the new species lacks a triangular spot and the pronotum bears a solid median line with asymmetrical rugosities (Fig. 1A). The base of the epiproct of S.wui is broad and rectangular dorsally then constricted from near base to apical third and apically widened (figs. 5–6 in Stark & Sivec 2009), while the new species epiproct base is circular, slightly widened towards the apex dorsally (Fig. 3A) and laterally much constricted almost to two-thirds of the epiproct and wider apically (Fig. 3D). The epiproct cap of new species is also different from S. wui. The epiproct cap of S. wui is circular, almost lying above the tip of the epiproct (figs. 6, 8 in Stark & Sivec 2009), while the new species with the rounded triangular cap, dorsally (Figs. 3A–B). The new species also show similar characteristics to S. yunnan. The epiproct of S. yunnan lacks an apical cap and is almost parallel from the base to the apex (figs. 1–4 in Tierno de Figueroa and Fochetti, 2002). The females of S. wui and S. yunnan are unknown, while the subgenital plate of S. lateoblonga sp. nov. is closely similar to S. insularis Zhiltzova & Levanidova 1978 (fig. 511 in Teslenko and Zhiltzova 2009).

Sweltsa sp. AZH-1 (Figs. 5–8) Adult habitus: Triocellate. General color green, pale yellow in ethanol. Head pale with black circular spot, compound eyes dark, ocellar margins with black rings (Fig. 5A). Antennae pale, but distal flagella become brown. The pronotum disk bears a dark black medial stripe (Fig. 5A). Mesonotum and metanotum medially bear a dark brown U-shaped mark with a dark medial stripe (Fig. 6A). Wings membrane transparent, legs pale. Abdominal tergum 1 with anterior and lateral margins brown, terga 2–4 with a wide rectangular median stripe, terga 5–8 with triangular median stripe; stripe of tergum 8 covering an anterior one-third of the segment. Terga 2–8 each with a pair of distinct pale median spots (Fig. 6A). Cerci pale consist of nine segments and are covered with long brown setae. Male: Body length 9.5–10.5 mm, forewing length 8.0– 8.5 mm, hindwing length 7.0– 7.5 mm (n = 2). Tergum 9 is slightly sclerotized, anteriorly with two connected median brown elliptical stripes, transverse ridge absent (Fig. 5B). In ventral aspect, tergum 9 forming a trapezoidal subgenital plate, posterior margins truncate (Fig. 5D). Tergum 10 with sclerotized transverse bands, the medial portion between the bands greatly enlarged in a shield-like basal anchor, the anchor much longer than wide and with a typical membranous groove (Fig. 5B). Epiproct narrow and long, rod-like in the dorsal aspect, sub-apically slightly widened with a rounded tip; apex smooth, bearing a sclerotized cap (Fig. 7A); the cap is inflated upward in lateral aspects. Most of the dorsal and ventral surface is covered with brown appressed setae and mostly parallel-sided in outline and subapically widened laterally (Figs. 7A–D). Female: Body length 10.0 mm, forewing length 8.5 mm, hindwing length 7.5 mm (n = 1). Habitus is generally similar to the male, but the ocellar area and frons are darker than the male (Fig. 8A). Abdominal tergum stripes are the same as males except for tergum 8 with median brown elliptical stripe; lateral dark patches also present anteriorly on segments 2–4 (Fig. 6B). The posterior margin of sternum 8 bears a rounded subgenital plate in ventral view, reaching near the half of the sternum 9 and weakly sclerotized. The subgenital plate posteromedially bears long hairs; the posterior tip of the plate is not rounded and possesses a minute notch in the middle (Figs. 8C–D). Nymph and egg: Unknown Material examined: 2 males, 1 female, China, Sichuan Province, Anzihe Nature Reserve, Shaoyaogou, 2016- VI-20, N 30. 8097, E 103.2194, 1598 m, Leg. Zhi-Teng Chen. Distribution: China (Sichuan Province). Remarks: These specimens are most similar to S. wui Stark & Sivec 2009. An additional study, especially examining the type specimens of S. wui, is needed for specific placement because S. wui and our specimens were both collected from Sichuan Province and are closely similar. However, we noted some morphological differences from S. wui as follows. In our specimens, the head bears a black circular spot (Fig 5A), while the S. wui has a triangular spot (fig. 1 in Stark & Sivec, 2009). The epiproct of our specimens are longer, narrower, and subapically slightly widened than the previous description (compare our Fig. 7A–D with figs. 2–7 in Stark & Sivec, 2009). A distinct dark medial stripe in the U-shape pattern of mesonotae and metanotae is also missing in the S. wui description. In Stark & Sivec (2009), they described the only male of S. wui and indicated that it could be placed in another genus. We also noted that the drawing and SEM plates provided for S. wui, specifically in the shape of epiproct, have few variations. To clarify this confusion, we tried our best to check the type specimens to avoid confusion in identifying our specimens as the lowest possible taxa. Unfortunately, we did not check the types as they are present out of China. Consequently, highlighting the above morphological differences in our new specimen, we tentatively consider this as Sweltsa sp. for the time being, because both samples were collected from the same province. In addition, there is no female record available for S. wui and our female specimen subgenital plate is rounded and bears long hairs medially (Fig. 8D) and is closely similar to S. colorata Zhiltzova & Levanidova, 1978. The subgenital plate of S. colorata is subtriangular, the apex is truncate, and covered with a patch of hairs (fig. 507 in Teslenko & Zhiltzova 2009) which easily distinguish these two females. Nevertheless, what is needed is to examine the type materials of S.wui and conduct more surveys in Sichuan Province to collect a large number of specimens for further morphological and molecular studies., Published as part of Rehman, Abdur, Huo, Qing-Bo & Du, Yu-Zhou, 2022, A new species and new species group of Sweltsa Ricker, 1943 (Plecoptera: Chloroperlidae), pp. 60-70 in Zootaxa 5154 (1) on pages 64-67, DOI: 10.11646/zootaxa.5154.1.3, http://zenodo.org/record/6637213, {"references":["Stark, B. P. & Sivec, I. (2009) Sweltsa wui and Haploperla valentinae (Plecoptera: Chloroperlidae), two new stoneflies from Sichuan Province, China. Illiesia, 5, 156 - 163.","Zhiltzova, L. A. & Levanidova, I. M. (1978) New species of stoneflies (Plecoptera) from the Far East. Trudy Zoologischeskogo Instituta Akademia Nauk, 61, 3 - 29.","Teslenko, V. A. & Zhiltzova, L. A. (2009) Key to the stoneflies (Insecta, Plecoptera) of Russia and adjacent countries. Imagines and nymphs. Dalnauka, Vladivostok, 382 pp."]}