Epacanthaclisis tuyuezhengi Zheng & Liu, 2025
|
publication ID |
https://doi.org/10.11646/zootaxa.5657.1.1 |
|
publication LSID |
lsid:zoobank.org:pub:01A734E6-8A47-4856-A7C2-734CC78E51B6 |
|
DOI |
https://doi.org/10.5281/zenodo.15823423 |
|
persistent identifier |
https://treatment.plazi.org/id/03EB87D8-FFDB-9C52-56FF-FD15FC63FDEA |
|
treatment provided by |
Plazi |
|
scientific name |
Epacanthaclisis tuyuezhengi Zheng & Liu |
| status |
sp. nov. |
Epacanthaclisis tuyuezhengi Zheng & Liu sp. nov.
( Figs. 2H View FIGURE 2 , 19A–B View FIGURE 19 , 20 View FIGURE 20 , 22 A–B View FIGURE 22 )
Diagnosis.Adult: Vertex generally dark brown, anteriorly with a pair of yellowish-brown spots. Frons pale yellowish-brown, anterior dark part distinct concave medially, lateral margin with a pair of indistinct dark spots. Pronotum dark brown, medially with a longitudinal slender yellowish-brown line, laterally with three pairs of yellowish-brown spots. Mesoprescutum generally dark brown. Forewing rhegma as an oblique dark brown marking. Male tergum 3 laterally and medially with some dark brown markings; tergum 4 medially with two rows of dense pores, posteriorly with a pair of oblique dark brown stripes; tergum 5 medially with a pair of small brown spots, posteriorly generally brown. Male gonocoxites 9 trapezoid in caudal view; short tapered setae on internal gonocoxites 9 arranged in Vshape; ectoproct as wide as the maximum width of sternum 9. Female posterior branches of gonocoxites 8 slender, curved at right angle.
Description of adult. Size. Head width: 2.85–3.12 mm; forewing length: 28.86–32.11 mm; hindwing length: 24.12–28.52 mm.
Head. Vertex generally dark brown, anteriorly with a pair of yellowish-brown spots ( Fig. 20C View FIGURE 20 ). Scape and pedicel each pale yellowish-brown, basally dark brown; flagellomeres each generally dark brown, distally yellowish-brown. Frons pale yellowish-brown, anterior dark part distinct concave medially, lateral margin with a pair of indistinct dark spots ( Fig. 20B View FIGURE 20 ). Clypeus pale yellowish-brown, covered with both dark and pale setae. Labrum yellowish-brown. Maxillary palpus yellowish-brown on first segment, medial and distal segments dark brown. Labial palpus generally yellowish-brown, distal segment fusiform and dark brown, distally pale yellowish-brown. Mandibles yellowish-brown with distal half dark brown.
Thorax. Pronotum dark brown, medially with a longitudinal slender yellowish-brown line, laterally with three pairs of yellowish-brown spots; laterally covered with dark and pale hairs. Mesoprescutum generally dark brown; mesonotum generally dark brown, laterally with two pairs of indistinct yellowish-brown markings; mesoscutellum generally dark brown, laterally with irregular indistinct yellowish-brown markings. Metanotum generally dark brown ( Fig. 20C View FIGURE 20 ). Pleurae generally dark brown.
Legs. Covered with many pale and dark setae. All coxae pale yellowish-brown each basally dark brown; femora basally yellowish-brown, medially and distally dark brown; tibial spurs dark brown, barely curved; male tarsomeres 1–4 basally pale, distally brown, tarsomere 5 basally pale, medially and distally dark brown; female tarsomere 1 yellowish-brown, distally dark brown, tarsomeres 2–5 generally dark brown; pretarsal claws slightly curved, protruded basally. Foreleg: Tibia dark brown, basally and medially with yellowish-brown spots; tibial spur reaching base of tarsomere 3. Mid leg: Similar to foreleg. Hind leg: Tibia basally yellowish-brown, with a black spot, distally dark brown; tibial spur reaching base of tarsomere 2; tarsomere 1 longer than that of fore- and midleg ( Fig. 20A View FIGURE 20 ).
Wings. Infuscate, narrow, blade-like, with some markings. Male wings darker than that of female ( Figs. 19A View FIGURE 19 , 20A View FIGURE 20 ). Hindwing 0.85 times as long as forewing. Pterostigma pale. Forewing costal space with a dark brown marking proximad pterostigma; bifurcation of R and CuA each with an indistinct dark brown spots; mediocubital with dark brown spots; rhegma as an oblique dark brown marking; cubital area basally with an oblique indistinct dark brown marking; marginal cubital area with scattered dots; costal, distal half of prefork and basal half of posterior crossveins mostly connected by oblique veinlets; five to six presectoral crossveins present, distal presectoral cells sometimes biloculate; RP with seven to eight branches; RP origin basal to MP fork, align at CuA fork. Hindwing rhegma as an oblique dark brown marking, sometimes indistinct; one presectoral crossvein present ( Figs. 19A–B View FIGURE 19 , 20A View FIGURE 20 ).
Abdomen. Male abdomen pale with dark brown markings. Male terga 1–2 generally dark brown, anteriorly pale yellow; tergum 3 laterally and medially with dark brown markings; tergum 4 medially with two rows of dense pores, posteriorly with a pair of oblique dark brown stripes; tergum 5 barely swollen, medially with a pair of small brown spots, posteriorly generally brown; tergum 6 generally pale, anteriorly constricted; tergum 7 generally dark brown, anteriorly and posteriorly pale yellow; tergum 8 generally dark brown ( Figs. 2H View FIGURE 2 , 22A–B View FIGURE 22 ). Male genitalia. Sternum 9 pentagonal, distally with long setae; tergum 9 laterally with long setae ( Figs. 20D–E View FIGURE 20 ). Gonocoxites 9 nearly trapezoid, externally slightly protruded in caudal view, anteriorly with short setae in ventral view; short tapered setae on internal gonocoxites 9 arranged in V-shape. Gonocoxites 11 thick, longer than gonocoxites 9 in lateral view; gonostyli 11 protruded dorsally ( Figs. 20H–K View FIGURE 20 ). Ectoproct pale yellow, basally with a dark brown spot, laterally expanded into digital projection, as wide as the maximum width of sternum 9; distal margin with many stout long setae ( Figs. 20D–E View FIGURE 20 ). Female genitalia. Pregenital plate tapered. Anterior branches of gonocoxites 8 weakly developed, tuberculate, covered with setae; posterior branches of gonocoxites 8 short digitiform, curved at right angle. Gonocoxites 9 covered with short, stout setae. Ectoproct nearly trapezoid, rounded on distal margin in lateral view ( Figs. 20F–G View FIGURE 20 ).
Type material. Holotype ♂, CHINA: Sichuan, Garze, Yajiang County [ḛȕ县], Bajiaolou Township [Âssế 乡], 2760 m, 25.VI.2020, Yuezheng Tu & Di Li ( IZCAS) . Paratypes: 2♀, CHINA: Sichuan, Garze , Yajiang County, 21–22.V.2019 ( IZCAS) ; 1♀, CHINA: Yunnan, Diqing, Shangri-La, Hutiaoxia Town [Ȇỡṉḍ], Jiangbian Village [ȕẖť], Yongke [Ì壳], 2100 m, 25.V.2023, Quanyu Ji ( CAU) ; 2♀, CHINA: Yunnan, Chuxiong, Wuding County [KḮ县], Tianxin Township [aeò乡], Fakuai Village [发块ť], 2200 m, 20.V.2022, Yuchen Zhao ( IZCAS) .
Distribution. China (Sichuan, Yunnan).
Etymology. This new species is dedicated to our neuropterid colleague Mr. Yuezheng Tu (ṁặe), who collected the holotype of this new species. He is also a good friend of the first author, who always assists him with his research.
Remarks. E. tuyuezhengi sp. nov. is similar to E. zhihaoi sp. nov., but there are some differences between them. In E. tuyuezhengi sp. nov., the frons is pale yellowish-brown and its anterior dark part distinct concave medially, the pronotum laterally has three pairs of yellowish-brown spots, the male tergum 4 medially has two rows of dense pores, the male sternum 9 is pentagonal, the male short tapered setae on internal gonocoxites 9 are arranged in a V-shape, and the male ectoproct is as wide as the maximum width of sternum 9; while in E. zhihaoi sp. nov., the frons is generally dark brown, the pronotum laterally has a pair of discontinuous yellowish-brown stripes and a pair of continuous yellowish-brown stripes, the rows of dense pores as E. tuyuezhengi sp. nov. on male tergum 4 are absent, the male sternum 9 is subtriangular, the male short, tapered setae on internal gonocoxites 9 are arranged in a narrowed triangular, and the male ectoproct is 1.5 times as wide as the maximum width of sternum 9. Besides, the wings of E. zhihaoi sp. nov. are wider than E. tuyuezhengi sp. nov. ( Fig. 19 View FIGURE 19 ).
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.