Epacanthaclisis xiaohongae Zheng & Liu, 2025
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publication ID |
https://doi.org/10.11646/zootaxa.5657.1.1 |
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publication LSID |
lsid:zoobank.org:pub:01A734E6-8A47-4856-A7C2-734CC78E51B6 |
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persistent identifier |
https://treatment.plazi.org/id/03EB87D8-FFC7-9C36-56FF-FDCCFEF4FD47 |
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treatment provided by |
Plazi |
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scientific name |
Epacanthaclisis xiaohongae Zheng & Liu |
| status |
sp. nov. |
Epacanthaclisis xiaohongae Zheng & Liu sp. nov.
( Figs. 1D View FIGURE 1 , 2N View FIGURE 2 , 23G–H View FIGURE 23 , 37 View FIGURE 37 , 38E View FIGURE 38 )
Diagnosis. Vertex generally dark brown. Pronotum dark brown, medially with a longitudinal slender pale yellowish line, laterally with a pair of pale yellowish dots and a pair of curved pale yellowish stripes. Mesoprescutum dark brown with a pair of pale yellowish dots. Legs generally black, femora basally reddish brown and distally black. Wings generally hyaline with a few scattered indistinct markings. Male terga 1–3, 7–8 generally dark brown; terga 4–6 pale; sunk part of male tergum 4 without marking, covered with dense long black setae. Male sternum 9 linguiform; external gonocoxites 9 slightly curved in ventral view, with a pair of curved projection in caudal view; internal gonocoxites 9 flattened in ventral view; membrane tubercles on external gonocoxites 9 as large as internal gonocoxites 9; gonocoxites 11 as linguiform in caudal view; gonostyli 11 relatively thin in ventral view; lateral ectoproct slightly expanded transversally, lateral margin with a longitudinal dark brown stripe. Female sternum 8 distally with dense long setae; posterior branches of gonocoxites 8 wide, internally curved digitiform, covered with many short stout setae on the tip; setae on gonocoxites 9 dense.
Description of adult. Size. Head width: 3.12–3.64 mm; forewing length: 40.83–47.42 mm; hindwing length: 40.37–47.01 mm.
Head. Vertex generally dark brown ( Fig. 37C View FIGURE 37 ). Scape and pedicel dorsally dark brown, ventrally pale brown; the part around scape yellow; flagellomeres each basally with a dark circular marking, distally pink. Frons generally yellowish-brown anterior dark part concave medially, posterolaterally with a pair of black dots ( Fig. 37B View FIGURE 37 ). Clypeus yellow, covered with dark setae. Labrum yellowish-brown. Maxillary palpus generally brown. Labial palpus generally yellowish-brown; distal segment fusiform and generally dark brown, distal part yellowish-brown. Mandibles yellowish-brown with distal half dark brown.
Thorax. Generally dark brown. Pronotum dark brown, medially with a longitudinal slender pale yellowish line, laterally with a pair of pale yellowish dots and a pair of curved pale yellowish stripes. Mesoprescutum dark brown with a pair of pale yellowish dots; mesonotum and mesoscutellum dark brown. Metanotum dark brown ( Fig. 37C View FIGURE 37 ). Pleurae generally dark brown with yellowish-brown markings.
Legs. Covered with many pale and dark setae. All coxae dark brown, distally reddish brown; femora reddish brown on basal half, distal half dark brown; tibial spurs brown, barely curved; pretarsal claws slightly curved, protruded basally. Foreleg: Tibiae black; tibial spur reaching tip of tarsomere 4; tarsi black. Midleg: Similar to foreleg. Hind leg: tibia black, basally with a pale yellowish spot; tibial spur reaching tip of tarsomere 3; tarsomere 1 basally pale yellow, distally black; tarsomere 2–5 black; tarsomere 1 longer than that of fore- and midleg ( Fig. 37A View FIGURE 37 ).
Wings. Long, narrowed. Mostly hyaline, with a few scattered indistinct markings. Forewing as long as hindwing. Pterostigma pale. Apex of wings with dark brown dots. Forewing costal space with an indistinct brown marking proximad pterostigma; rhegma as an indistinct dark brown stripe, sometimes discontinuous; cubital area basally with an indistinct dark brown marking; costal and basal half of posterior crossveins mostly connected by oblique veinlets; five to six presectoral crossveins present, distal presectoral cells sometimes biloculate; RP with 12–13 branches; RP origin basal to MP fork, nearly align at CuA fork. Hindwing mostly hyaline; rhegma as a dark brown spot; two presectoral crossveins present ( Figs. 23G–H View FIGURE 23 , 37A View FIGURE 37 ).
Abdomen. Male terga 1–3, 7–8 generally dark brown; terga 4–6 pale; sunk part of male tergum 4 without marking, covered with dense long black setae; terga 4–5 swollen. Female abdomen generally dark brown; sternum 8 distally with dense long setae ( Figs. 2N View FIGURE 2 , 38E View FIGURE 38 ). Male genitalia. Sternum 9 linguiform, distally with long setae ( Fig. 37E View FIGURE 37 ). External gonocoxites 9 strongly sclerotized externally, encased internal gonocoxites 9; external gonocoxites 9 slightly curved in ventral view, with a pair of curved projection in caudal view; membrane tubercles on external gonocoxites 9 as large as internal gonocoxites 9; internal gonocoxites 9 flattened in ventral view; gonocoxites 11 as linguiform in caudal view; gonostyli 11 relatively thin in ventral view ( Figs. 37H–L View FIGURE 37 ). Lateral ectoproct slightly expanded transversally, lateral margin with a longitudinal dark brown stripe, distally with stout curved setae ( Figs. 37D–E View FIGURE 37 ). Female genitalia. Pregenital plate tapered. Anterior branches of gonocoxites 8 tuberculate, covered with setae; posterior branches of gonocoxites 8 wide, internally curved digitiform, covered with many short stout setae on the tip; gonocoxites 9 with dense slender slightly stout setae. Ectoproct nearly rounded in lateral view ( Figs. 37F–G View FIGURE 37 ).
Type material. Holotype ♂, CHINA: Yunnan, Nujiang, Lushui City [ǡAEŪ], Pianma Town [ŧḶḍ], 2200 m, 30.VIII.2023, Yuchen Zheng ( IZCAS) . Paratypes: 1♀, same locality as holotype, 1.IX.2023, Yuchen Zheng ( IZCAS) ; 1♂, CHINA: Yunnan, Nujiang, Gongshan County [ǨƜ县], Dulongjiang Township [ůĪȕ乡], Qinlangdang [ứ Dzṡ], 1350 m, 6.IX.2023, Chao Wu ( IZCAS) .
Distribution. China (Yunnan).
Etymology. This new species is named in honor of Ms. Xiaohong Ye (叶ầṋ), the mother of the first author, Yuchen Zheng, in recognition of her great support for his interest and research in entomology since his childhood.
Remarks. This new species is similar to E. minana . However, E. xiaohongae sp. nov. can be distinguished from E. minana by its generally dark brown pronotum laterally with a pair of pale yellowish dots and a pair of curved pale yellowish stripes, the sunk part of male tergum 4 without marking and covered with dense long black setae, its male external gonocoxites 9 with a pair of curved projection in caudal view, its male internal gonocoxites 9 flattened in ventral view, its female posterior branches of gonocoxites 8 covered with many short stout setae on the tip, and the setae on female gonocoxites 9 denser; while in E. minana , the yellowish-brown pronotum medially has a pair of longitudinal closed dark brown stripes, laterally has a pair of dark brown spots, and posterolateral margin has a pair of subtriangular dark brown marking, the sunk part of male tergum 4 has a dark brown marking, the dense long setae on the sunk part of male tergum 4 are basally black and distally pale, the projection of male external gonocoxites 9 is absent, the male internal gonocoxites 9 are rhomboidal in ventral view, the female posterior branches of gonocoxites 8 covered with many long stout setae on the tip, and the setae on female gonocoxites 9 are sparser.
The Epacanthaclisis moiwana group
Diagnosis. Forewing as long as hindwing. Only male abdominal segment 5 swollen, anteromedial margin covered with a pair of tufts of bristles (absent in E. moiwana ), anterolateral margin with scattered long slender setae. Male sternum 9 wide, nearly bell-shaped, constricted on distal part; external gonocoxites 9 strongly sclerotized, encased internal gonocoxites 9, internal gonocoxites 9 relatively small shaped as a pair of plates; gonocoxites 11 as long as gonocoxites 9. Female gonocoxites 9 with short stout tapered setae.
Included species.
| IZCAS |
Institute of Zoology, Chinese Academy of Sciences |
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.