Picture-winged Fly

Picture-winged Fly, Delphinia picta

Picture-winged fly is the common term used for the diverse Ulidiidae family who all share a characteristic pattern of the wings. The species Delphinia picta can be distinguished by a distinctive front two white triangle pattern on the wings, and the rowing motion of the wings while it walks. Seen between spring and fall throughout most of the eastern United States, Delphinia picta breeds in decaying organic matter and frequently scavenges decayed vegetation, and sometimes even dead caterpillars.

A thank you to Chris Mallory who helped me identify this!