Osmylus bipapillatus, Wang & Liu, 2010

Wang, Yongjie & Liu, Zhiqi, 2010, New species of Osmylus Latreille from Henan, China (Neuroptera: Osmylidae), Zootaxa 2363 (1), pp. 60-68 : 65-66

Osmylus bipapillatus sp. nov.

( Figs 3 , 18–21 )

Diagnosis. Wing dull hyaline, veins tan. Male: 9 th tergite with a long subulate dorsomedial projection. Distal part of gonarcus sclerotized, with two papillary ventral processes, base slightly sclerotized. Baculum slender, dilated close to the base.

Description. Head. Vertex black. Ocelli yellowish, black around base. Eyes grey to black; antenna dark brown, with brown setae, antennal socket membrane yellowish. Frons black; labrum brown, with a black stripe at base. Labial and maxillary palp yellow. Thorax. Pronotum black with brown setae. Meso- and metanotum dark brown, with long brown setae. Legs yellow with long setae. Wings ( Fig. 3 ). Forewing length 25.2–28.1 mm, width 7.9–8.9 mm. Wing venation relatively open; coloration of wing markings resemble O. lucalatus sp. nov.; some discrete brown spots present along the margin; outer gradate cross-veins edged with fuscous spots; cubital region with some brown spots; pterostigma brown with fuscous patches; nygmata brown; veins tan; Rs with 12–14 branches, MP forked between the separation of MA from Rs and the first branch of Rs; branches of A1 and CuP interlinked by some veinlets. Hindwing length 22.3–25.8 mm, width 6.5–7.4 mm; membrane hyaline with pterostigma and nygmata brown. Male terminalia ( Figs 18–21 ): 8 th tergite approximately trapezoidal; 8 th sternite normally unmodified; scent gland present, the dark reservoirs and membranous evaporative lobe appreciably extend out from the tergite; 9 th tergite slightly broad, with a long subulate dorsomedial projection; 9 th sternite trapezoidal; ectoproct approximately cone-shape; callus cerci large and oval; distal part of gonarcus protruding as two cone-shape papillary processes in lateral view; base with slightly sclerotized margin; baculum slender, dilated close to the base; paramere approximately Cshaped in lateral view, base slender, bent medially.

Distribution. Presently known only from Henan province, China.

Material examined. Holotype Male. CHINA: Henan (Province): Neixiang (county): Baotianman (Nature Reserve), 1382m. Light trap. 24.VII.2004, leg. Bingzhen Yan. Verbatim label data (translated from Chinese): CHINA: Hennan Prov, Neixiang, Baotianman / 24.VII.2004, 1382m/ Bingzhen Yan / CAU. Condition: Excellent, the right antennae missing. Terminalia cleared in KOH, and stored in the microvial pinned below the specimen.

Paratypes. 3 males (one head damaged), same data as holotype ( CAU) .

Etymology. The specific name ‘bipapillatus’ refers to the two papillary processes of gonarcus, which is the compound of the Latin bi- (two) and papillatus (papilla-shaped).

Remarks. Osmylus bipapillatus sp. nov. is easily distinguished from other species by the long projection of 9 th tergite and the two papillary processes of gonarcus. The gonarcus of O. bipapillatus resembles P. elegantissimus (Kozhantshikov, 1951) , however it can separate the both species based on the aforementioned details.

Figures

FIGURES 1–4. Wings of new Osmylus species. 1. Osmylus biangulus sp. nov. 2. Osmylus lucalatus sp. nov. 3. Osmylus bipapillatus sp. nov. 4. Osmylus pachycaudatus sp. nov.

FIGURES 18–21. Osmylus bipapillatus sp. nov. Male. 18, apex of abdomen, lateral; 19, genitalia, lateral; 20, gonarcus, ventral; 21, paramere, lateral.