Heterosmylus curvagradatus Yang, 1999

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 : 123-124

Heterosmylus curvagradatus Yang, 1999 Figs 44, 45-50

Material examined.

Holotype Male. CHINA: Fujian (Province): Wuyishan, Huanghuacong, [27°48'N, 117°42'E], 13.x.1980, leg. Fan Jiang. [Verbatim label data (translated from Chinese)]: CHINA: Fujian Prov., Wuyishan, Huanghuacong/ 13.x.1980/ Fan Jiang/ CAU. Paratype Female. CHINA: Fujian (Province): Wuyishan, Xianfenling, 19.ix.1987. leg. Jiashe Wang.

Diagnosis.

Two yellow longitudinal stripes present from pronotum to mesonotum. mesoscutellum bright yellow, metanotum with a central yellow stripe; apex of gonarcus slightly dilated, short and curved dorsally.

Redescription.

Body length 7-10 mm. Head. Vertex shiny yellow with a brown round spot in middle and a greyish yellow transverse band near antennae; frons bright yellow with a black brown stripe; ocelli grey but black at base; compound eyes grey and glossy; antennae black; clypeus yellow, maxillary and labial palpi dark brown. Thorax. Dark brown with two yellow longitudinal stripes from pronotum to mesonotum. mesoscutellum bright yellow, metanotum with a central yellow stripe. Wings (Fig. 44). Forewing length 15-17 mm, width 5-6 mm; membrane hyaline, veins fuscous with numerous long setae; pterostigma yellow but brown on both sides. Crossveins r1-rs edged with dark brown spots. Rs with 8-9 branches, gradates cross-veins with brown marks. Hind wing length 13-14 mm, width 4-6 mm; membrane hyaline without spots besides the pterostigma.

Male Terminalia (Figs 45-48). Ectoproct approximately pentagonal in lateral view; gonarcus rod-like in lateral view, apex slightly inflated, short and curved dorsad; mediuncus fused at base and scoop-shaped in dorsal view and apex flat-bottomed in dorsal view.

Female Terminalia (Figs 49-50). 8th sternite reduced into finger-shape in lateral view; ectoproct approximately trapezoid in lateral view; 9th gonocoxite approximately finger-shaped in lateral view; 9th gonostylus brown and short; spermathecae bend into C-shape.

Distribution.

China (Fujian).