About Criorhina floccosa (Meigen, 1822)
Criorhina floccosa (Meigen, 1822) is a large, broad bumblebee mimic. For terminology related to this description, see Morphology of Diptera. It has a wing length of 10–13 mm, and its body is covered in dense yellow, fox red, or a mix of yellow and black hairs. The second abdominal tergite bears distinct side tufts made of long yellow hairs. Tergites 3 and 4 are covered in short, dense reddish or tawny hairs and dusting that do not hide the underlying ground color of the cuticle. The first and second tibiae have pale, short, closely adpressed hairs. An illustration of the larva of this species was published by Rotheray in 1993. This species is distributed across the Palaearctic realm. Its known range extends from South Sweden and Denmark south to the Pyrenees, and from Ireland east through European Russia to the Caucasus.
