Sepedon lobifera Hendel, 1911

Li, Zhu & Yang, Ding, 2017, Sepedon (Diptera: Sciomyzidae) species from China, with notes on taxonomy and distribution, Zootaxa 4254 (3), pp. 301-321 : 308-310

3. Sepedon lobifera Hendel, 1911

( Figs. 19–28 )

Sepedon lobifera Hendel, 1911 . Ann. Mus. Natl. Hung. 9: 271. Type locality: China: Taiwan.

Diagnosis. Male ( Fig. 19 ). Body yellowish brown tinged blackish brown, without metallic luster. Frons with pair of oval velvety black orbital spots ( Fig. 20 ), parafacial spots absent ( Fig. 21 ). Frons without distinct orbital setae ( Fig. 20 ). Antennae yellowish brown. Mesonotum brown but with extensive blackish brown patches ( Fig. 23 ). Thoracic pleuron yellow to blackish brown with distinct pale pruinosity. Scutellum flat without apical scutellar setae ( Fig. 23 ). Fore basitarsus elongate, the other tarsal segments distinctly wider ( Fig. 22 ). Hind femur swollen, reddish in distal half. Hind tibia distinctly curved following ventral outline of hind femur. Wing hyaline, anterior crossveins darker. Female similar to male in external characters except terminalia.

Male terminalia: sternum 5 divided into two square sclerites. Cercus elongated, rod-like ( Fig. 24 ). Surstylus long but basally wide ( Fig. 24–25 ). Hypandrium symmetrical, tapering to apex, curled forward ( Fig. 26 ). Cochleate vesicle present ( Fig. 24–25 ). Aedeagus and apodemes as shown in Figs. 27–28 .

Specimens examined. CHINA: Guangxi: Yangshuo , 150 m, 1963. VII. 20, Yong-Shan Shi (1♀, IZCAS) . Hainan: Qiongzhong , 400 m, 1960 . V. 4, Xue-Zhong Zhang (1♂, IZCAS), 400 m, 1960 . V. 4, Xue-Zhong Zhang 1♂ 1♀, ( IZCAS); Tongshen, 340 m, 1960 . IV. 27, Zhen-Fu Li (1♀, IZCAS), 340 m, 1960 . VI. 25, Zhen-Fu Li (1♂, IZCAS) ; Wuzhishan , 800 m, 2008. V. 15, Qi-Fei Liu (1♂, CAU) ; Yinggen , 200 m, 1960. IV. 4, Zhen-Fu Li (1♀, IZCAS) . Sichuan: Mount Emei , 1800–1900 m, 1957. VIII. 3, Ke-Ren Huang (1♀, IZCAS) . Yunnan: Hekou, 2006. V. 16, Jun-Hua Zhang (1♂, CAU); Jinghong, 600 m, 1957 . IV. 29, Da-Hua Liu (1♂ 2♀, IZCAS), 600 m, 1957 . IV. 29, Shu-Yong Wang (2♂, IZCAS), 620 m, 1981 . IV. 12, Ji-Kun Yang (1♀, CAU) ; Jinping , 370 m, 1956. IV. 17, Ke- Ren Huang (2♀, IZCAS) ; Kunming , 1950–2350 m, 2010. VII. 27, Chun-Tian Zhang (1♂ 1♀, SNU) ; Lincang, 2004. X. 5, Guan Kai (1♀, CAU) ; Mangshi , 1000 m, 1956. VI. 3, Tian-Rong Huang (1♂ 1♀, IZCAS) ; Menghai , 1990. IV. 27, collectors unknown (3♂, SNU) ; Menglong, 1958. IV. 8, Han-Hua Cheng (1♂ 2♀, NKU), 1958 . IV. 9, Han-Hua Cheng (1♂, NKU); Menglun, 2006 . V. 9, Ting-Ting Zhang (1♂, CAU), 630 m, 2009 . V. 7, Ting-Ting Zhang (3♂, CAU) ; Puer , 1150 m, 1957. V. 13, Shu-Yong Wang (1♂ 1♀, IZCAS) ; Xishuangbanna , 600 m, 1981 . IV. 15, Ji-Kun Yang (1♂ 1♀, CAU), 650 m, 1958 . IV. 10, Shu-Yong Wang (1♂, IZCAS), 650 m, 1958 . IV. 14, Shu- Yong Wang (3♂, IZCAS), 650 m, 1958 . IV. 16, Chun-Pei Hong (1♀, IZCAS), 650 m, 1958 . IV. 19, Zhi-Xin Chen (1♂, IZCAS), 650 m, 1958 . IV. 9, Le-Yi Zheng (1♀, IZCAS), 650 m, 1958 . IV. 9, Shu-Yong Wang (1♂, IZCAS), 800–1300 m, 1959 . V. 11, Yi-Ran Zhang (1♀, IZCAS), 850 m, 1957 . IV. 3, Shu-Yong Wang (1♂, IZCAS), 850 m, 1957 . VIII. 23, Shu-Yong Wang (1♂, IZCAS) ; Yiwu , 650 m, 1958. X. 24, Xu-Wu Meng (1♂, IZCAS) ; Yuanjiang , 380 m, 1981. IV. 4, Fa-Sheng Li (1♂, CAU) ; Yunxian , 1100 m, 1981. IV. 23, Ji-Kun Yang (1♀, CAU) .

Distribution. China (Sichuan, Yunnan, Guangxi, Hainan, Taiwan, Hong Kong); Thailand, Pakistan, India ( Yano, 1978).

Remarks. This species is unique among all of the Sepedon species from China in lacking both orbital and scutellar setae. It is so different from other species of Sepedon that it might form the basis of a new genus if more supporting evidence accumulates in the future. This species occurs only in the south of China and apparently belongs to the Oriental fauna.

Figures

FIGURES 19 – 28. Sepedon lobifera Hendel. 19. Male habitus, lateral view. 20. Frons, frontal view. 21. Head, lateral view. 22. Fore basitarsus. 23. Thorax, dorsal view. 24. Male postabdomen (cochleate vesicle inside), lateral view. 25. Male postabdomen (cochleate vesicle inside), caudal view. 26. Hypandrium (left part), lateral view. 27. Aedeagus and apodemes, lateral view. 28. Aedeagus and apodemes, ventral view.