Cheilosia (Meigen, 1822)

Bot, Sander, Mengual, Ximo, Meutter, Frank Van de & Skevington, Jeffrey H., 2025, Review of the genus Cheilosia Meigen, 1822 (Diptera: Syrphidae) from the Caucasus, with the description of 14 new species, European Journal of Taxonomy 1023, pp. 1-181 : 43-45

Cheilosia ( Montanocheila chrysocoma ( Meigen, 1822)

Fig. 20

Syrphus chrysocomus Meigen, 1822: 280 .

Cheilosia chrysocoma – Gujabidze 2002: 246. — Mengual et al. 2020: 25.

Differential diagnosis

Cheilosia chrysocoma stands out amongst most other species of Cheilosia by usually having a furry, fox red body pile ( Fig 20A, C). Within the subgenus Montanocheila the male can be identified by surstylus being ca five times as long as wide, with pointed tip ( Fig. 20B, in the other species of Montanocheila occurring in the Caucasus, the surstylus is not longer than three times width). The female has the posterior margin of tergum V rounded (in the other species of Montanocheila occurring in the Caucasus the posterior margin of tergum V is more angulated).

Material examined

Species not collected.

Genetics

All DNA barcodes of C. chrysocoma from outside the Caucasus cluster together with a high support (BS = 99.1%).

Remarks

Gujabidze (2002) and Mengual et al. (2020) cite the records of this species from Mtskheta ( Mtskheta-Mtianeti) included in an unpublished manuscript by Zaitsev; see references in Gujabidze (2002). The presence of this species in the Caucasus needs confirmation.

Distribution

Europe, European parts of Russia, and Siberia.