Cheilosia (Cheilosia) velutina Loew, 1840

Fig. 78

Chilosia velutina Loew, 1840: 33 .

Chilosia velutina – Stackelberg & Richter 1968: 249. — Stackelberg 1970: 64. — Peck 1988: 119. — Barkalov 1993: 724. — Mengual et al. 2020: 22.

Cheilosia velutina Loew, 1848 [sic] – Gujabidze 2002: 245.

Differential diagnosis

Cheilosia velutina is a member of a group of closely related species, called the proxima group (Vujić et al. 2013) in which the pilose eyes, posterior margin of scutellum with setae, usually partly yellow legs, continuously pilose katepisternum, pruinose sterna and the shape of postgonite are distinctive characters. For a full diagnosis of the Cheilosia proxima group and for figures of the male genitalia of C. velutina, see Vujić et al. (2013). Within the proxima group C. velutina is best identified by the poorly developed facial tubercle, resulting in the face being almost flat between facial tubercle and postclypeus (Fig. 78B, D) (in the other species, facial tubercle well-developed, face in lateral view obviously concave between facial tubercle and postclypeus). Moreover, no other species in the proxima group have the combination of the postpedicel usually orange at least basoventrally and scutum coarsely punctured like in C. velutina .

Material examined

Species not collected.

Genetics

DNA barcodes of European specimens of C. velutina cluster together with high support (BS = 100%).

Distribution

Palaearctic. Within the Caucasus reported from Azerbaijan and Russia.