taxonID	type	description	language	source
874E8C3DFF95EA4AFF23F8E281DDFC14.taxon	description	(Figs. 1 a, 1 c – 1 e & 2) Adult habitus (Figs. 1 a, 1 e). General body color pale in ethanol. Head with a large, rectangular median dark brown marking covering ocellar area and frons; compound eyes dark, ocelli with dark rings, anterior ocellus paler; antennae pale, distal flagella slightly darker (Fig. 1 a). Pronotum with dark brown medial portion narrowly surrounded by elongate rugosities, rugosities with a paler background, and wide, pale lateral margins. Wing membrane transparent; legs pale. Abdominal tergum 1 with anterior and lateral margins brown, terga 2 – 7 with a wide median stripe, stripe generally yellow brown but darker from tergum 5, posteromedial portion of terga 6 – 7 darker brown. Cerci 6 - segmented. Setae of dorsal surfaces and inner margins of segments 1 – 3 are of subequal length, and longer than the length of each segment; distal setae of segments 4 – 6 longer than the basal setae of each segment. (Fig. 1 e). Male (Figs. 1 c – 1 e & 2). Forewing length 8.1 mm; hindwing length 6.7 mm. Tergum 9: transverse ridge strongly sclerotized and band-shaped in dorsal aspect, the ridge elevated and triangular in lateral aspect (Fig. 1 e). Epiproct long, parallel-sided for most its length with narrower apex in dorsal aspects; in lateral aspect, epiproct recurved and S-shaped, nearly parallel-sided in outline and slightly widened apically (Figs. 1 c – 1 d & 2). Female. Unknown.	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF95EA4AFF23F8E281DDFC14.taxon	materials_examined	Type Material. Holotype: male (CAU), CHINA: Zhejiang Province, Longquan City, Fengyangshan, N 27 ° 53.52 ’, E 119 ° 9.95 ’, 1450 m, malaise trap, 2007. VII. 3, Yajun Zhu.	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF95EA4AFF23F8E281DDFC14.taxon	etymology	Etymology. The specific name refers to the lateral profile shape of the epiproct.	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF95EA4AFF23F8E281DDFC14.taxon	distribution	Distribution. China (Zhejiang Province).	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF95EA4AFF23F8E281DDFC14.taxon	discussion	Remarks. Sweltsa bicurvata sp. n. is similar to the Tibet Autonomous Region species, Sweltsa tibetensis Li, Pan & Liu, 2017 in sharing the similar shape of the epiproct in dorsal and lateral aspects. However, S. bicurvata can be easily separated from S. tibetensis by the following features: head with a large, rectangular median dark brown marking, terga 2 – 7 with wide, median stripe. In S. tibetensis, the body color is darker than the new species and covered with short, robust hairs. The pronotum bears a large pigmented area which is much wider than in S. bicurvata, and there is no defined dorsal stripe on the abdomen (figs. 2 – 3, 5, 9 – 11 in Li et al. 2017).	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF94EA4AFF23FC6D87E2F863.taxon	description	(Figs. 1 b, 1 f – 1 h & 3) Adult habitus (Figs. 1 b, 1 f). Body generally pale in ethanol. Head pale, with a median brown marking covering ocellar area to frons, posteromedial area of the spot rectangular; head about as wide as pronotum. Compound eyes black, ocelli with dark rings; antennae pale brownish, basal segments pale (Fig. 1 b). Pronotum with wide, brown median stripe and rugosities, pale lateral margins narrow. Wing membrane transparent; legs pale. Abdominal terga 1 – 7 with a wide pale brown median stripe (Fig. 1 f). Cerci 9 - segmented. Setae of dorsal surfaces and lateral margins of segments 1 – 4 are of subequal length, and longer than the length of each segment; distal setae of segments 5 – 9 longer than the basal setae of every segment. Male (Figs. 1 f – 1 h & 3). Forewing length ca. 7.7 – 8.4 mm; hindwing length ca. 6.6 – 6.9 mm. Tergum 8 with a brown anteromedial marking. Tergum 9 with band like transverse ridge (Fig. 1 f). Sternum 9 with a tongueshaped subgenital plate (Fig. 3 e). Epiproct widened toward triangular apex in dorsal aspect; epiproct recurved, distal portion distinctly swollen, with a keel that is widest subterminally and ending in a blunt tip, and dorsal surface nearly straight for entire length, ventral surface of apex rounded in lateral aspect (Figs. 1 g – 1 h, 3 a – 3 d). Female (Figs. 3 f – 3 g). Subgenital plate on sternum 8 extends over half sternum, and emarginate in ventral view.	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF94EA4AFF23FC6D87E2F863.taxon	materials_examined	Type Material. Holotype: male (CAU), CHINA: Zhejiang Province, Longquan City, Fengyangshan, N 27 ° 53.52 ’, E 119 ° 9.95 ’, 1450 m, malaise trap, 2007. VII. 6, Yajun Zhu. Paratypes: 1 female (HIST), same data and date as holotype; 2 males (HIST), China: Zhejiang Province, Longquan City, Fengyangshan, Longquan Grand Canyon, N 27 ° 53.52 ’, E 119 ° 9.95 ’, 1450 m, 2021. IV. 29, Xulong Chen.	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF94EA4AFF23FC6D87E2F863.taxon	etymology	Etymology. The specific name refers to the Zhejiang Province where the type locality was located.	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF94EA4AFF23FC6D87E2F863.taxon	distribution	Distribution. China (Zhejiang Province).	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
874E8C3DFF94EA4AFF23FC6D87E2F863.taxon	discussion	Remarks. Sweltsa zhejiangensis sp. nov. is similar to Sweltsa bilobata Mo, Ye, Wang & Li, 2020 in lateral epiproct and female subgenital plate shape. However, S. zhejiangensis can be easily distinguished from S. bilobata by the following features: the epiproct is gradually widened from base to subapical part in dorsal view; female subgenital plate extends over half the length of sternum 9. In S. bilobata, the epiproct is slightly constricted at median length and tapers evenly to the tip in dorsal view; the female subgenital plate nearly reaches the posterior margin of sternum 9 (figs. 2 – 6 in Mo et al. 2020).	en	Li, Wenliang, Wang, Yingying, Li, Weihai, Li, Mengyu (2021): Two new species of Sweltsa (Plecoptera: Chloroperlidae) from China. Zootaxa 5057 (1): 145-150, DOI: https://doi.org/10.11646/zootaxa.5057.1.10
