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: https://en.wikipedia.org/wiki/Delphinia_picta_
Color and Appearance: “Wing pattern apparently distinctive, with two white triangles on front edge. Moves wings in rowing motion as it walks.”*
*From BugGuide.net (https://bugguide.net/node/view/5919)
Common Picture-Winged Fly on my Arm Common Picture-Winged Fly on my Arm