Common Picture-Winged Fly

Scientific Name: Delphinia picta

Family: Ulidiidae

Native Range: Eastern United States, Pennsylvania

Size: 7 – 9 mm (0.28 – 0.35 in)*

Active: 2 generations per year: Adults active in late spring – summer. Next generation overwinters a larva. (Wikipedia:

Color and Appearance: “Wing pattern apparently distinctive, with two white triangles on front edge. Moves wings in rowing motion as it walks.”*

*From (