Sepedon sphegea ( Fabricius, 1775 )

Li, Zhu & Yang, Ding, 2017, Sepedon (Diptera: Sciomyzidae) species from China, with notes on taxonomy and distribution, Zootaxa 4254 (3), pp. 301-321 : 315-316

7. Sepedon sphegea ( Fabricius, 1775)

( Figs. 61–67 )

Syrphus sphegeus Fabricius, 1775 . Syst. Ent. 768. Type locality: England: Anglia.

Sepedon aenescens Wiedemann, 1830 . Ausser. Zweifl. Ins. 2: 579. Type locality: China: Trentepohl.

Diagnosis. Male ( Fig. 61 ) and female similar to S. aenescens in the following characters: Body black or bluish black with metallic luster. Frons without orbital spots but velvety black parafacial spots below level of antenna present. Frons with pair of posterior orbital setae. Scape dark brown to black, concolorous with other antennal segments ( Fig. 62 ). One pair of apical scutellar setae present. Femur more reddish than yellow, the rest of legs blackish brown. Wing infumated, without spots. Male terminalia similar to that of S. aenescens ( Fig. 63–67 ). Specimens examined. CHINA: Beijing: 1974 . VII. 28, Fa-Sheng Li (1♂, CAU). Guizhou: Huishui , 1981 . VI. 1, Fa-Sheng Li (1♂, CAU). Inner Mongolia: Ali River , 1987 . VIII. 11, Le-Yi Zheng (1♂, IZCAS). Xinjiang: Korla , 1000 m, 1958 . VII. 10, Wang Guang (1♂, IZCAS); Shule , 1979 . VIII. 30, Ji-Kun Yang (1♂ 1♀, CAU); Tulufan , 34 m, 1979 . VIII. 26, Fa-Sheng Li (2♂ 4♀, CAU). Yunnan: Kunming , 1938 . VII. 13, collectors unknown (3♂1♀, CAU), 1940. VI. 22, collectors unknown (1♀, CAU), 1941. V. 12, collectors unknown (-, CAU), 1941. VII. 5, collectors unknown (2♂, CAU), 1943. V. 19, collectors unknown, (1♂, CAU), 1943. VI. 2, collectors unknown (1♂, CAU), 1943. VI. 13, collectors unknown (1♀, CAU), 1944. VII. 13, collectors unknown (1♂, CAU), 1944. XII. 13, collectors unknown (1♂, CAU), D1-43, 1940. VI. 24, collectors unknown (1♂, CAU), D1-43, 1940. VII. 7, collectors unknown (1♂, CAU); Mojiang , 1981 . IV. 5, Ji-Kun Yang (1♂, CAU); Qujing , 1941 . V. 12, collectors unknown (1♂, CAU), 1941. V. 13, collectors unknown (1♂, CAU); Yun County, 1100 m, 1981 . IV. 23, Ji-Kun Yang (1♀, CAU).

Distribution. China (Beijing, Inner Mongolia, Xingjiang, Guizhou, Yunnan); Palearctic including Europe, Iraq, Iran, Afghanistan, Mongolia, Russia, North Africa ( Morocco) but also recorded in India ( Knutson & Orth, 1984).

Remarks. This species is quite close to S. aenescens in both external characters and male terminalia. Sepedon aenescens was once considered to be a synonym of S. sphegea (Knutson, 1977) . Characters for separating the two species are presented under S. aenescens above and in couplet 3 in the key, by which the specimens examined here were identified.

Figures

FIGURES 61 – 67. Sepedon sphegea (Fabricius). 61. Male habitus, lateral view. 62. Head, lateral view. 63. Male postabdomen, lateral view. 64. Male postabdomen, caudal view. 65. Sternum 5. 66. Hypandrium (right part), lateral view. 67. Hypandrium, aedeagus and apodemes, ventral view.