taxonID	type	description	language	source
04385B6A5F77FF92B4C1FE28FE25FE58.taxon	description	Figs. 1 – 4.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F77FF92B4C1FE28FE25FE58.taxon	materials_examined	Rhopalopsole duyuzhoui Sivec & Harper 2008: 111. Holotype ♂ (ICYZU), Zhejiang (Baishanzu), China (examined) syn. nov.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F77FF92B4C1FE28FE25FE58.taxon	description	Male: The central plate of tergum 10 scale-like, mostly sclerotized (Fig. 2 A), but some specimens more sclerotized along hind margin (Fig. 4 A). Because there are no color figures of this species in the current literature, we also show the color pattern of the head and pronotum (Figs. 1, 3), Other characteristics were described in Qian & Du (2012). Female: Unknown. Egg: Unknown. Nymph: Unknown.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F77FF92B4C1FE28FE25FE58.taxon	materials_examined	Type locality: China, Zhejiang Province, Gutian Mountain. Material examined: Rhopalopsole duyuzhoui Sivec & Harper, 2008, syn. nov.: Holotype: ♂, China: Zhejiang Province, Baishanzu, 1999 - VI- 7, leg. Du Yu-Zhou (ICYZU); Paratypes: 3 ♂♂, same data as holotype.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F77FF92B4C1FE28FE25FE58.taxon	distribution	Distribution: China (Zhejiang, Shaanxi, Guizhou).	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F77FF92B4C1FE28FE25FE58.taxon	discussion	Remarks. Yang & Yang (1995) did not describe the male of Rhopalopsole basinigra in sufficient detail. Qian & Du (2012 a) checked the types of R. basinigra in the Insect Collection of Beijing Agricultural University and redescribed the detailed characteristics of this species. We checked the holotype and paratypes of R. duyuzhoui, and it is clear that R. duyuzhoui has the typical characteristics of R. basinigra. (Figs. 1 – 4). We, therefore, define R. duyuzhoui as a junior synonym of R. basinigra. Because the lateral projections of abdominal terga 9 (Figs. 2 A – 2 B) of R. basinigra have typical characteristics (long and sinuous) of the R. dentata group as proposed by Sivec et al. (2008), we think this species is a member of R. dentata group.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F75FF95B4C1FC40FC15FD90.taxon	description	Figs. 5 – 7. Male. Body length 4.5 – 5.5 mm. Forewing length 7.0 – 7.3 mm, hindwing length 5.8 – 6.2 mm (n = 6). Head pale brown, wider than pronotum (Fig. 5); ocelli white; antennae and palpi light brown. Pronotum light brown, quadrate, longer than wide, all angles rounded and with several black irregular stripes (Fig. 5). Legs light brown. Wings hyaline and veins light brown. Tergum 9 mostly sclerotized, lesser so medially with an upraised sclerotized process on hind margin (Figs. 6 A – 6 B, 7 A – 7 B). Sternum 9 basally with flabelliform vesicle bearing dense hairs, apically with a triangular subgenital plate (Figs. 6 C, 7 C). Tergum 10 bearing a large central plate covered laterally with macrotrichia and there is a mammillary process on both sides, the middle poorly sclerotized part in the central plate is triangular and rounded apically (Figs. 6 A – 6 B, 7 A – 7 B). Transverse plates roughly triangular with apically strongly sclerotized. Lateral projections of tergum 10 thin, extending backwards with a long narrow and sinuous process (Figs. 6 A – 6 B, 7 A – 7 B). The process meeting the corresponding process from the other side. Epiproct thick at base, hook-like, not tapering appreciably along its course, ending in a point. Subanal lobes of large size, narrow at base expanding distally, then narrowing to the end. Cercus hairy and upcurved, no spine (Figs. 6 A, 7 A). Female. Unknown.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F75FF95B4C1FC40FC15FD90.taxon	materials_examined	Type materials. Holotype: ♂, China: Guizhou Province, Tongren, Fanjing Moutain, 880 m, 29 ° 48 ′ 18 ″ N, 106 ° 23 ′ 26 ″ E, 2017 - IV- 8, leg. Chen Zhi-Ten. Paratypes: 5 ♂♂, same data as holotype.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F75FF95B4C1FC40FC15FD90.taxon	etymology	Etymology. The species name refers to the two mammillary processes in the central plate of tergum 10.	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
04385B6A5F75FF95B4C1FC40FC15FD90.taxon	diagnosis	Diagnosis and remarks. Rhopalopsole dicondylica sp. nov. is a member of the R. dentata group as proposed by Sivec et al. (2008), with an upraised sclerified process of tergum 9, and lateral projections on tergum 10 are long and sinuous. Males of the new species are unique by the tergum 10 bearing a large central plate covered laterally with macrotrichia and there is a mammillary process on both sides, the middle poorly sclerotized part in the central plate is triangular and rounded apically (Figs. 6 A – 6 B, 7 A – 7 B). Tergum 10 of R. tianmuana has a poorly sclerotized part of the central plate, however, the thin epiproct distinguish the male of R. dicondylica, and cerci of R. tianmuana have a small spine (Figs. 8 A – 8 B). Tergum 10 of R. hamata with a weakly sclerotized, sub-trapezoidal central plate, but it can be distinguished from R. didyma by the thin epiproct and there is no upraised sclerotized process of tergum 9 (fig. 2 in Chen 2019). R. curvispina and R. zhejiangensis can also be distinguished from R. dicondylica by the small spine of the cerci (figs. 1 – 3 in Qian & Du 2013, figs. 98 in Yang et al. 2015). The tergum 10 of other species in this group with a central plate covered with a field of scales and / or knobs (Sivec et al. 2008, Li & Yang 2011, Yang et al. 2015).	en	Yang, Yu-Ben, Du, Yu-Zhou (2021): A new synonym with a new species of Rhopalopsole (Plecoptera: Leuctridae) from China. Zootaxa 5072 (5): 485-492, DOI: https://doi.org/10.11646/zootaxa.5072.5.5
