Barkalov, A.V. and Mutin, V.A. 2014.

Two new species of Syrphidae (Diptera) from Chukotka (Northern Russian Far East)

. Zootaxa. 3846, 2 (Aug. 2014), 285–292. DOI:https://doi.org/10.11646/zootaxa.3846.2.8.