Rhynchopsilopa huangkengensis
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Ordo: Diptera
Familia: Ephydridae
Genus: Rhynchopsilopa
Name
Rhynchopsilopa huangkengensis Zhang & Yang & Mathis, 2012 sp. n. – Wikispecies link – ZooBank link – Pensoft Profile
Diagnosis
Body shiny black, with some bluish reflections. Face black, with blue reflections; palpus brownish yellow, moderate at apex; arista with 7–8 dorsal rays. 1 pair of posts dc, sutural dc absent. Forecoxa brown at extreme base, yellow at apex, mid and hind coxae brown; femora dark brown; tibiae and tarsomeres 1–4 yellowish, tarsomere 5 brown. Forefemur with rows of pd and pv, each about as long as width of forefemur; mid femur with a row of av, which are shorter than width of mid femur. Mesonotum and abdomen with short and sparse setulae. Costal vein index 0.43, M vein index 2.0; first costal section of male not thickened. Male genitalia: epandrium very thin, only slightly expanded ventrally; hypandrium in ventral view hourglass-like, with rounded anterior margin, in lateral view shallow to nearly flat; postsurstylus wide at base and slender at apex in lateral view; gonite/subepandrial plate slender, sinuous; phallapodeme with long, extended keel.
Description
Male body length: 1.9–2.1 mm; wing length: 2.4–2.6 mm.
Head shiny black, with blue reflections. Setulae and setae of head black. Lateral vt as long as medial vt; 1 pair of strong oc; 1 pair of proclinate orb. Face black, with blue reflections; epistoma brownish yellow; palpus brownish yellow, moderate at apex. Gena with 1 strong seta. Arista with 7–8 dorsal rays.
Thorax shiny black, with blue reflections; mesonotum with short and sparse setulae. Thoracic setulae and setae black. 1 pair of posts dc, sutural dc absent; 2 rows of weak, short acr, posterior npl as long as anterior npl; katepisternal seta weaker than anepisternal seta; 1 weak sa, 1 strong ia; scutellum with 2 pairs of sc, apical sc stronger than lateral sc. Forecoxa brown at extreme base, yellow at apex, mid and hind coxae brown; femora dark brown; tibiae and tarsomeres 1–4 yellow, tarsomere 5 brown (Figs 9–11). Forefemur with rows of pd and pv, each nearly as long as width of forefemur; mid femur with a row of av, which are shorter than width of mid femur. Costal vein index 0.43, M vein index 2.0; first costal section of male not thickened. Wing brownish yellow, veins brown. Haltere white.
Abdomen shiny black, with blue reflections, bearing short and sparse setulae. Male genitalia (Figs 12–15): epandrium in posterior view (Fig. 12) very thin, bearing long setae on ventral half along posterior margin; cercus in posterior view (Fig. 12) narrowly lunate; presurstylus greatly reduced; postsurstylus in posterior view (Fig. 12) broader basally, thereafter shallowly sinuous with a shallow, lateral bump, tapered to ventral point, in lateral view (Fig. 13) more or less evenly broad on basal half, ventral half tapered to ventral point, more symmetrically angulate; aedeagus in posterior view (Figs 12, 15) narrowly elongate, more so than postsurstylus, slightly arched on ventral ¼; phallapodeme in lateral view (Fig. 13) transversely elongate, with long extended, more or less evenly thick keel; subepandrial plate in posterior view (Fig. 12) rod-like, shallowly curved; hypandrium in ventral view (Fig. 14) hourglass-like, with anterior margin rounded, in lateral view (Fig. 13) shallow to nearly flat.
Female. Body length: 2.4–2.8 mm; wing length: 2.7–2.8 mm. Similar to male. Female ventral receptacle as in Fig. 16.
Specimens examined
Holotype ♂, Fujian: Huangkeng, Aotou, 2 May 2004, Xingxue Liu (CAU). Paratypes 1♀, same data as holotype (CAU); 1♂, 2♀♀, Fujian: Huangkeng, Aotou, 1 May 2004, Dakang Zhou (CAU); 1♂, Fujian: Huangkeng, Aotou, 2 May 2004, Lili Zhang (CAU); 1♂, 3♀♀, Guangdong: Dapu, Fengxi National Nature Reserve, 29 Jul 2003, Shuwen An (CAU); 2♂♂, Guangdong: Dapu, Fengxi National Nature Reserve, 28 Jul 2003, Xingyue Liu (CAU); 1♂, Guangdong: Nanling National Nature Reserve, Qinshuigu, 25 Aug 2005, Junhua Zhang (CAU); 2♂♂, Guangdong: Nanling National Nature Reserve, Shumuyuan, 8 May 2004, Mengqing Wang (CAU); 5♂♂, 9♀♀, Guangdong: Nanling National Nature Reserve, Shumuyuan, 8 May 2004, Yang Ding (CAU); 3♂♂, Guangdong: Shaoguan, Chebaling National Nature Reserve, 12 Jul 2003, Shuwen An (CAU); 9♂♂, 7♀♀, Guangxi: Jinxiu, Dayaoshan National Nature Reserve, Fenzhancun, 23 Jul 2005, Yajun Zhu (CAU & USNM); 3♂♂, 2♀♀, Guangxi: Jinxiu, Dayaoshan National Nature Reserve, Hekou, 31 Jul 2005, Yajun Zhu (CAU); 5♂♂, 3♀♀, Guangxi: Jinxiu, Dayaoshan National Nature Reserve, Luoxiangcun, 28 Jul 2005, Yajun Zhu (CAU & USNM); 2♂♂, Guizhou: Libo, Yaolancun, 12 Jun 2005, Junhua Zhang (CAU); 1♀, Fujian: Huangkeng, Aotou, 2 May 2004, Junhua Zhang (CAU); 2♀♀, Guangdong: Zengcheng, Nankunshan, 15 Jul 2003, Xingyue Liu (CAU).
Distribution
China (Fujian, Guangdong, Guangxi, Guizhou).
Etymology
The species epithet is derived from the type locality, Huangkeng.
Remarks
This new species is similar to Rhynchopsilopa magnicornis Hendel, but may be distinguished from the latter by the following characters: palpus brownish, forecoxa with a brown base, costal vein index 0.43, M vein index 2.0, and costal section I of the male not thickened. In Rhynchopsilopa fuscipennis Wirth, the palpus is yellowish, the forecoxa is yellowish, the costal vein index is 0.50, the M vein index is 2.2; and the costal section I of the male is thickened (Wirth 1968[1]).
Original Description
- Zhang, J; Yang, D; Mathis, W; 2012: A review of the species of Rhynchopsilopa Hendel from China (Diptera, Ephydridae) ZooKeys, 216: 23-42. doi
Other References
- ↑ Wirth W (1968) The genus Rhynchopsilopa Hendel (Diptera: Ephydridae). Annals of the Natal Museum 20: 37-46.
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