Steganopsis convergens Hendel, 1913

Shi, Li, Wang, Donghui & Yang, Ding, 2023, Species of the genus Steganopsis from China (Diptera: Lauxaniidae), Zoological Systematics 48 (2), pp. 177-183 : 178

Steganopsis convergens Hendel, 1913 ( Figs 1 , 4–8 )

Steganopsis convergens Hendel, 1913: 102 . Type locality: China ( Taiwan, Tainan, Takao, Chip Chip )

Pachycerina apicalis Bezzi, 1914: 316 . Type locality: Philippines (Luzon, Los Baños).

Diagnosis. Frons yellow without middle stripe; ocellar triangle with a black velvety round spot; oc hair–like. Face shining, brownish yellow, broad and prominently convex with a pair of atropurpureus round lateral spots, a brownish round spot on ventro-lateral corner; frontofacial angle slightly beyond 90°. Antennal 1st flagellomere black, nearly 1.5 times as long as two basal segments combined; arista short plumose, with longest hairs shorter than width of 1st flagellomere. Mesonotum with 4 reddish brown vittae, acr in 2 rows. Legs brownish yellow; fore tibia reddish brown on basal 1/2 and fore tarsus brownish black. Wing ( Fig. 1 ) tinged brownish, costal margin brown between R 1 and R 2+3 and a narrow white stripe between tips of R 2+3 and R 4+5. Halter yellow, knob brownish. Abdomen shining, yellow to brownish yellow. Male genitalia ( Figs 4–8 ): syntergosternite broad, semicircular with an apical incision in dorsal view; epandrium broad bridge– like in ventral view, separated from surstylus; surstylus long and wide, bifurcated apically, with a pair of narrow basal processes and tufted hairs on basal processes; aedeagus asymmetric in shape and narrow apically.

Material examined. 2♂ 1♀, Hainan, Zhanzhou, Nada Liangyuan , elev. 630 m, 8 May 2007, leg. Junhua Zhang ; 1♂ 1♀, Hainan, Yinggeling National Natural Reserve, Hongmao village , elev. 430 m, 20–21 May 2007, leg. Junhua Zhang ; 1♀, Hainan, Jianfengling National Natural Reserve, Nantianchi, Yulin , 10 May 2007, leg. Junhua Zhang ; 1♀, Hainan, Jianfengling National Natural Reserve, Mingfenggu , elev. 800 m, 25 October 2007, leg. Xingyue Liu ; 1♂, Hainan, Jianfengling National Natural Reserve , elev. 700 m, 19 September 1985, leg. Leyi Zheng ; 1♂, Hainan, Yinggeling National Natural Reserve, Hongmao village , elev. 430 m, 23 May 2007, leg. Jie Zeng.

Distribution. China (Anhui, Hainan, Taiwan), Japan (Ryukyus), Indonesia (Lombok, Nusa, Tenggara), Malaysia (Sunda), Philippines (Luzon), Australia.

Figures

Figures 1–3. Wings of Stegonopsis spp. 1. S. convergens Hendel, 1913; 2. S. mayanghensis Shi & Yang, sp. nov.; 3. S. multilineata de Meijere, 1924.

Figures 4–8. Stegonopsis convergens Hendel, 1913, male. 4. Syntergosternite and epandrium, lateral view; 5. Syntergosternite, anterior view; 6. Epandrium, posterior view; 7. Aedeagal complex, ventral view; 8. Aedeagal complex, lateral view.