Blepharicera dimorphops Alexander, 1953

Kang, Zehui & Yang, Ding, 2014, Species of Blepharicera Macquart from China with descriptions of two new species (Diptera: Blephariceridae), Zootaxa 3866 (3), pp. 421-434 : 424-426

Blepharicera dimorphops Alexander, 1953

( Figs. 6–11 )

Blepharicera dimorphops Alexander, 1953: 101 . Type locality: China, Fukien, Ta-Chu-Lan.

Diagnosis. Compound eyes dicholoptic, upper division of eye about 1/10 as large as lower division. Base of Rs a little longer than r-m; r-m straight. Outer gonostylus bilobate, dorsal lobe of gonostylus narrow, round apically, with uniformly hairs; ventral lobe broad, blunt apically, with uniformly short hairs.

Description. Male. Body length 4–4.5 mm, wing length 3.5–4.0 mm. Head uniformly black, with dark brown hairs. Ocellar tubercle brown. Compound eyes dicholoptic, boundary of upper division and lower division unconspicuous; upper division of eye about 1/10 as large as lower division; compound eyes black with pubescences. Ocelli dark brown, prominent. Antenna longer than head width; scape and pedicel yellow brown; base of first flagellomere light brown, other flagellomeres yellow brown; last flagellomere three times longer than wide. Proboscis short, yellow brown. Palpus five-segmented, two times longer than proboscis; first segment short, segments 2–4 long, fifth segment slender and long, as long as the total length of segments 1–4; palpus yellow brown with uniformly brown hairs.

Thoracic dorsum uniformly brown. Thoracic pleuron mostly brown, with yellow portion; thorax only scutellum with dense patches of hairs on anterior margin. Coxae and trochanters mostly yellow, except basal 1/2 of fore coxa brown; bases of femora yellow brown, gradually darkened apically; tibiae and tarsomeres brown; hairs on legs brown. Wing ( Fig. 7 ) board, subhyaline; veins brown; Sc rudimentary, not ending at base of Rs; Base of Rs a little curved, Rs a little longer than r-m; r-m straight. Halter yellow brown.

Abdominal segments mostly dark brown except segments 2–6 with yellow brown band basally. Hairs on abdomen brown. Male genitalia ( Figs. 8–9, 11 ): Epandrium broad, posterior margin slightly concave, with uniformly short brown hairs; hypandrium slightly narrow basally, broad apically, posteromedial margin concave, with short hairs laterally; cercus bilobate, each lobe conical, with uniformly short hairs; outer gonostylus bilobate, dorsal lobe of gonostylus narrow, round apically, with uniformly hairs; ventral lobe broad, blunt apically, with uniformly short hairs; inner gonocoxal lobe transparent, slender, basally broad, without hairs; paramere slender, transparent.

Female. Body length 5–5.5 mm, wing length 5.5–6.0 mm. Resembling male. Boundary of upper division and lower division conspicuous; upper division flat, reddish brown; lower division black. Proboscis well developed, conical, black. Abdomen gradually tapered apically, cercus yellow ( Fig. 10 ).

Material examined: 1♂, CHINA, Fujian, Wuyishan, Guadun, 1991. V.7, Hong Wu; 1♂ 2♀, CHINA, Fujian, Jianglexian, Longqishan, 1991. V.10, Hong Wu; 1♀, CHINA, Fujian, Dehuaxian, Shuikou, 1974. XI.6, Jikun Yang; 2♀, CHINA, Fujian, Dehuaxian, Shuikou, 1974. XI.12, Jikun Yang; 1♀, CHINA, Fujian, Dehuaxian, Shuikou, 1974. XI.12, Fasheng Li; 1♀, CHINA, Fujian, Wuyishan, Pikeng, 2010. VII.20, 500– 650 m, Xiaoyan Liu; 1♂ 1♀, CHINA, Fujian, Wuyishan, Dazhulan, 2010. VII.21, Xiaoyan Liu; 8♀, CHINA, Fujian, Wuyishan, Tongmucun, 2009. VII.2, Xiaoyan Liu; 17♀, CHINA, Fujian, Wuyishan, Gaoqiao, 580 m, 2009. VII.12, Xiaoyan Liu; 1♀, CHINA, Fujian, Wuyishan, Tongmucun, 2009. VII.18, Xiaoyan Liu; 16♀, CHINA, Fujian, Wuyishan, Miaowan, 200. VII.4, Li Shi; 1♀, CHINA, Fujian, Nanpingshi, Wuyishan, Yiliping, 2009. VII.5, Xiushuai Yang; 1♂, CHINA, Fujian, Nanpingshi, Wuyishan, Taoyuanyu, 2009. VI.28, Xiushuai Yang.

Distribution. China (Fujian).

Figures

FIGURES 6 – 7. Blepharicera dimorphops Alexander (male). 6. Habitus of male, lateral view; 7: Wing. Scale bar: 1.0 mm.

FIGURES 8 – 11. Blepharicera dimorphops Alexander (male). 8: Genitalia, dorsal view. 9: Genitalia, ventral view; 10: Female Terminal, dorsal view; 11: Gonostylus, dorsal view. Scale bar: 8 – 9, 11 = 0.5 mm; 10 = 0.25 mm.