Mesembrina mystacea

This species is present in the Palaearctic realm, from Fennoscandia south to Turkey and from the Atlantic seaboard across Eurasia to as far as Mongolia.

In fact the anterior yellow-brown thoracic band of hairs is much narrower in the male than in the female.

[1] These flies closely mimic certain Bombus species (bumblebees) (Apidae family).

M. mystacea is the only bumble-bee mimic among the Mesembrina species present in western Europe.

[1] This species belongs to insects with complete metamorphosis which involves a pupal stage.

Mesembrina mystacea . Male