Colobaea Zetterstedt, 1837

Li, Zhu, Yang, Ding & Murphy, William L., 2019, Review of genera of Sciomyzidae (Diptera: Acalyptratae) from China, with new records, synonyms, and notes on distribution, Zootaxa 4656 (1), pp. 71-98 : 74

1. Colobaea Zetterstedt, 1837 (New record)

( Figs. 2, 3 , 33 , 65 )

Colobaea Zetterstedt, 1837: 53 . Type species: Opomyza bifasciata Fallén, 1820 (monotypy) [= Opomyza bifasciella Fallén, 1820 ].

Ctenulus Rondani, 1856: 107 . Type species: Opomyza pectoralis Zetterstedt, 1847 (original designation).

Melanochira Schiner, 1864: 283 . Type species: Opomyza distincta Meigen, 1830 (original designation).

Diagnosis. Small species, no larger than 5 mm. Frons matt, mostly velvet black. Frons with 2 orbital setae. Propleural seta present but short or indistinct. Wing hyaline without spots or reticulated pattern. Vein CuA 2 +A 1 not reaching posterior margin of wing.

Remarks. Of the 13 described species, 10 are Palearctic (9 species restricted to the Palearctic Region with 1 of them extended into the Oriental Region) and 3 of them are Nearctic.

Before our study, Colobaea had never been recorded from China. Two species (4 males from Inner Mongolia and 1 female from Xinjiang) are reported here for the first time from China. All specimens were collected from the Palearctic Region of China; all other species of Colobaea found during our study are also found in the Palearctic Region.

Specimens examined. Colobaea eos Rozkošný & Elberg, 1991: 2 ♂, CHINA, Inner Mongolia, Genhe, 835 m, 2016. VII. 30, Li Shi ( IMAU); 2♂, CHINA, Inner Mongolia, Genhe, 870 m, 2016. IX. 27, Li Shi ( IMAU) . Colobaea sp.: 1♀, CHINA, Xinjiang, Tacheng, 1955. VII. 24, Shijun Ma ( IZCAS) .

Figures

FIGURE 65. Geographical distribution of genera of Sciomyzidae from China (1).

FIGURES 1–8. Characters and morphological terms for the family Sciomyzidae (I).

FIGURES 33–40. Adult habitus (head) of genera in the tribe Sciomyzini.