Cheilosia (Eucartosyrphus) flavissima Becker, 1894

Fig. 28

Chilosia flavissima Becker, 1894: 371 .

Cheilosia pallipes Loew, 1863 – Stackelberg & Richter 1968: 247. — Peck 1988: 112.

Chilosia flavissima – Barkalov 1993: 712. — Mengual et al. 2020: 23.

Differential diagnosis

The male of Cheilosia flavissima is similar to that of C. ruffipes and C. scutellata, but more yellow: face and trochanter partly yellow and basal one third of wing with yellow veins, all black in C. ruffipes and C. scutellata . All males of the three species stand out amongst other Cheilosia in having a broad facial tubercle, but in C. flavissima this is less pronounced than in C. ruffipes and C. scutellata . The female is also very yellow, the only Cheilosia having the combination of yellow pro- and mesofemur and entirely yellow scutellum.

Material examined

Species not collected.

Genetics

All DNA sequences of C. flavissima group together with high support (BS = 100%).

Distribution

Palaearctic. Within the Caucasus, only reported from Azerbaijan.