First record of the genus Euchariomyia Bigot, 1888 from China (Díptera: Bombyliidae)

摘要

The genus Euchariomyia Bigot is a small Oriental genus with three known species. It is recorded from China for the first time with one known species. Male and female genitalia of the species Euchariomyia dives Bigot are described. A key to the generaof Bombyliinae from China is presented. The genus Euchariomyia Bigot is a small genus of bee flies belonging to the subfamily Bombyliinae (Hull, 1973). It is easily identified by the following characters: small-size (4-6 mm), male eyes holoptic, female eyes dichoptic; head with a long proboscis, scape at least two times the length of pedicel; wing mostly infúscate, iridescent, base of anal lobe and alula with dark brown hairs on margin; vein m, not reaching wing edge, and the conspicuous covering of white reflective scales on the tergites (in males). Euchariomyia includes the following three known species: E. brunettii Senior-White, 1922, E. dives Bigot, 1888, and E. scintillans Brunetti, 1909; all endemic to the Oriental Region (Evenhuis and Greathead, 1999). No species have previously been reported from China. Recent collecting in Guangxi resulted in the discovery of one species of Euchariomyia. In the present paper this species E. dives Bigot, is added to the fauna of China and marks the first record of the genus from here. A key to the genus of the Bombyliinae from China is presented. Little is known of species of Euchariomyia so we take this opportunity to fully redescribe the male and female and fully illustrate the male and female genitalia,which we hope will assist further study of species of this and related genera from this region.