Although this is a moth, this species flies only during the day, preferring sunny periods and places. It is recognized by its very fast flight, like a large bumblebee, by its transparent fore-wings and black abdomen with orange rings. The end of the abdomen has two black spots formed by tufts of filaments of the same colour. This moth prefers warm and moist meadows, especially flower-rich hay meadows. It flies May to June, sometimes in July-August. The larvae develop on different species of Devil’s-bit Scabious (Scabiosa sp.), and over-winters as a pupa. In central and western Europe, agricultural intensification, with all its side effects (fertilizers, pesticides, frequent mowing, intensive grazing, habitat destruction) has caused the disappearance of the moth in very large areas. In Transylvania it is still well represented, with many stable and strong populations. This moth indicates the highest quality hayfields.