Nemoura kuankuoshui Li, Li & Yang, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5725.3.8 |
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publication LSID |
lsid:zoobank.org:pub:EC18C55A-70C7-4DA5-9EFF-684C621369BA |
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DOI |
https://doi.org/10.5281/zenodo.17869163 |
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persistent identifier |
https://treatment.plazi.org/id/8E488781-F36D-AC6A-94D5-F815FD23740D |
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treatment provided by |
Plazi |
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scientific name |
Nemoura kuankuoshui Li, Li & Yang |
| status |
sp. nov. |
Nemoura kuankuoshui Li, Li & Yang , sp. nov.
( Figs. 1–3 View FIGURE 1 View FIGURE 2 View FIGURE 3 )
Adult habitus. General color light brown ( Fig. 1a, 1c View FIGURE 1 ). Head brown, with a dark M-shaped marking connecting ocelli; antennae and palpi yellowish brown; compound eyes black. Pronotum subrectangular, anterior corners nearly forming right angles and posterior corners obtuse, with two distinct ring-like rugosities darker than background ( Fig. 1c View FIGURE 1 ). Legs brown; wings subhyaline with brown veins. Abdominal segments brownish; terga 1–6 each bear three dark longitudinal bands, tergum 7 bears a medial band and two slender transverse lateral spots, while terga 8–10 have only a faint medial mark ( Fig. 1b View FIGURE 1 ).
Male. Forewing length 7.3 mm, hindwing length 6.2 mm (n=1). Tergum 9 ( Fig. 2a View FIGURE 2 ) sclerotized, anterior margin distinctly sclerotized, distal margin with 6 paramedial spines on each side of midline ( Fig. 2a View FIGURE 2 , 3a View FIGURE 3 ). Sternum 9 ( Fig. 2b View FIGURE 2 ) with claviform vesicle, lateral margins distinctly sclerotized, length ca. 3X maximum width, slightly constricted basally and enlarged apically; hypoproct broad and ovum-shaped, abruptly tapering subapically toward a short, tubular apex ( Fig. 2b View FIGURE 2 , 3b View FIGURE 3 ). Tergum 10 ( Figs. 2a, 2c View FIGURE 2 , 3a View FIGURE 3 ) sclerotized, with more darkly sclerotized anteromedial, posteromedial, and posterolateral bars, with a narrow longitudinal concavity located between two dark paramedial sclerites and the anteromedial bar, mostly hidden by overhanging epiproct; anterior area of the concavity with rows of minute black spines ( Fig. 2a View FIGURE 2 ). Cercus ( Figs. 2a View FIGURE 2 , 3a–b View FIGURE 3 ) mostly distinctly sclerotized, inner portion lighter, a subquadrate membranous area located lower face of apex with a dark spine-like remnant of the second cercal segment ( Figs. 2a View FIGURE 2 , 3a View FIGURE 3 ), length ca. 3X maximum width, subapically constricted ( Fig. 3b View FIGURE 3 ). Epiproct ( Figs. 2a, 2c View FIGURE 2 , 3a, 3c View FIGURE 3 ) subrectangular with trifurcate projection at rounded apex. Dorsal sclerite ( Figs. 2a View FIGURE 2 , 3a, 3c View FIGURE 3 ) with a pair of heavily sclerotized, sloped, lateral arms located at middle portion of epiproct. Ventral sclerite ( Figs. 2a View FIGURE 2 , 3a, 3c View FIGURE 3 ) with a pair of small lateral knobs at basolateral corners, extended inward and inserted into the dorsal sclerite forming a broad base, continued in elongate basal plate bearing a row of small spines, apex extending over dorsal sclerite forming a conical projection, the projection with a distinctly sclerotized medial stripe; ring V-shaped and partially covered by dorsal sclerite medially, and connecting medial portion of apical sclerites; apical sclerites ( Figs. 2a View FIGURE 2 , 3a, 3c View FIGURE 3 ) forms an outcurved prong with 3 short teeth at apex in dorsal view. Paraproct ( Figs. 2b View FIGURE 2 , 3b View FIGURE 3 ) outer lobe laterally strongly sclerotized, basally subquadrate, apical half narrow and triangular; inner lobe band like with obtuse apex, much shorter than outer lobe.
Female. Forewing length 8.4 mm, hindwing length 7.3 mm (n=1). Sternum 7 ( Figs. 2d View FIGURE 2 , 3d View FIGURE 3 ) with a trapezoidal pregenital plate, overlapping anterior half of sternum 8, posterior margin truncate, approximately 1/3 width of sternum 7. Sternum 8 ( Figs. 2d View FIGURE 2 , 3d View FIGURE 3 ) slightly sclerotized, with hairy triangular vaginal lobes transversely located near either posterolateral side. Inner sclerite ( Figs. 2d View FIGURE 2 , 3d View FIGURE 3 ) with a longitudinal triangular sclerite.
Type material. Holotype male ( HIST), CHINA: Guizhou Province, Zunyi City, Suiyang County, Kuankuoshui Nature Reserve , Maoya Town , Zhongping village , upstream section of Furong River , N 28.2500° E 107.1667°, 700–890 m, 2012.III.26, leg. Weihai Li. GoogleMaps Paratype: 1 female ( HIST), same data as holotype GoogleMaps .
Distribution. China ( Guizhou Province).
Etymology. The specific epithet is named after the Kuankuoshui Nature Reserve.
Remarks. The new species belongs to the N. ovocercia group. The male epiproct and female paragenital plate of N. kuankuoshui sp. nov. are similar to N. formosana Shimizu, 1997 , but it easily separated from the latter by the rounded cercal apex in males and truncate posterior margin of pregenital plate in females; for N. formosana , the male cercal apex bears an anterior hook and the posterior margin of pregenital plate in females is produced and rounded (see figs. 39, 47 in Shimizu 1997). For the Chinese mainland species in the group, the epiproct of N. geei Wu, 1929 and N. longistyla Zhao, Rehman & Du, 2023 are moderately similar to that of N. kuankuoshui sp. nov., but in those species, the median long projection is much longer than that in N. kuankuoshui sp. nov. (see fig. 41 in Shimizu, 1997 and figs. 6C–D in Zhao et al. 2023).
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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