Heterosmylus yunnanus Yang, 1986

Dong, Min, Xu, Han, Wang, Yongjie, Jia, Chunfeng & Liu, Zhiqi, 2016, Revision of the genus Heterosmylus Krueger, 1913 from China (Neuroptera, Osmylidae), ZooKeys 637, pp. 107-128 : 111-114

Heterosmylus yunnanus Yang, 1986 Figs 7, 8-13

Heterosmylus zhamanus Yang, 1988: 195. syn. n.

Material examined.

Holotype male. CHINA: Yunnan (Province): Lushuixian Gangfang, [25°57'N, 98°52'E], 29.ix.1980, leg. Dejing Zou. [Verbatim label data (translated from Chinese)]: CHINA: Yunnan, Lushuixian, Gangfang, 29.ix.1980/ Dejing Zou. Terminalia cleared in KOH, and stored in a micro-vial pinned below the specimen. 3 males, 1 female (type specimens of Heterosmylus zhamanus ), Tibet: Zhangmu, 06.vi.1981, leg. Shengchang Hu; 3 males, 5 females, Tibet: Hanmi, 24.viii.2005, leg. Dakang Zhou; 2 males, Sichuan: Luding, Hailuogou, 26.vi.2006, leg. Xiaoshuan Bai.

Diagnosis.

Pronotum black with two yellowish longitudinal stripes at anterior margin; mesonotum with two yellow spots in middle; apex of gonarcus bent upwards and relative long in lateral view.

Redescription.

Body length 9-11 mm. Head. Vertex dark brown, frons bright yellow; ocelli yellow; compound eyes dark grey; antennae entirely dark; clypeus brownish, maxillary and labial palpi dark brown. Thorax. Pronotum black with two yellowish longitudinal stripes at anterior margin; mesonotum with two yellow spots in middle. Wings (Fig. 7). Forewings length 18-21 mm, width 6-7 mm; membrane hyaline, and veins dark brown; pterostigma dark brown with yellowish center. Rs with 15-17 branches; Cu edged with three or four yellow spots. Hind wing length 15-18 mm, width 5-6 mm; membrane hyaline, cross-veins edged with brown marks between Sc and R1.

Male Terminalia (Figs 8-11). Ectoproct quadrate in lateral view. Gonarcus rod-like in lateral view, the apex bent upwards and relatively long; entoprocesses distally expanded, lobe-shaped; mediuncus fused at base and curved into C-shape in lateral view; each mediuncus lobe raised on both sides, boat-shaped in dorsal view.

Female Terminalia (Figs 12-13). Ectoproct trapeziform in lateral view; 9th gonocoxite finger-shaped in lateral view, 9th gonostylus brown and long. Spermathecae bent into C-shaped and basal part longer than distal.

Distribution.

China (Tibet, Yunnan, Sichuan)

Remarks.

Although the original identification of both Heterosmylus yunnanus Yang and Heterosmylus zhamanus Yang was based on the colour pattern of the head, there are no convincing differences to distinguish them after comparison of their genitalic features. So we believe that Heterosmylus zhamanus should be a synonym of Heterosmylus yunnanus .