Where Does Delphinia Picta Come from?

Delphinia picta, one of the most common and attractive flies in the family Ulidiidae found in North America, is reported to occur from Maine westward to Minnesota and southward to Kansas and Florida.

Where do picture-winged flies come from?

Generally, picture-winged flies develop from egg to adult, through three instars and pupation, in approximately 45 days. For some species, the third instar larvae survive winter in the soil, and they usually emerge in May. Picture-winged flies can produce several generations in a year.

What do picture-winged flies eat?

The larvae of most picture-winged flies feed on decaying matter, as in compost heaps or other places where vegetation is rotting. The larvae of some species eat living plant material, and a few are crop pests. Adults sometimes visit sap flows and may visit flowers for nectar.