Cheilosia ( Cheilosia ) atypica Barkalov, 1993

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 : 15-16

Cheilosia ( Cheilosia) atypica Barkalov, 1993

Fig. 7

Cheilosia atypica Barkalov, 1993: 703 .

Cheilosia atypica – Barkalov & Mutin 2018: 482.

Differential diagnosis

This species is only known from the female holotype. In the female, the combination of a bare eye, bare face, bicoloured legs and wide parafacia can be found in a few species of Cheilosia only, sometimes called the alba group; for a diagnosis of the European species, see Vujić & Claussen (2000). In the Caucasus, this species may only be confused with C. megaclama sp. nov. but C. atypica has the tibiae with indistinct black ring (tibiae with distinct black ring in the middle in C. megaclama ) and the tarsi are dorsally predominantly yellow instead of predominantly black as in C. megaclama .

Material examined

Species not collected.

Distribution

The only known specimen was collected on the summit of Belaya Mt, Russia, Northern Caucasus.