Picture-winged fly

Scientific Name: Delphinia picta

Order & Family: Diptera: Ulidiidae

Size: Approximately 7 to 8 mm in length.

Picture-winged fly

Natural Habitat

Often found in moist, shaded areas near deciduous forests, gardens, and decaying vegetation.

Diet & Feeding

Adults feed on fluids from decaying organic matter, nectar, and tree sap; larvae (maggots) consume rotting vegetation and compost.

Behavior Patterns

Characterized by distinctive wing-flicking behavior, where they rhythmically wave their patterned wings while walking. They are generally slow flyers and are often seen resting on foliage or structures.

Risks & Benefits

They pose no risk to humans as they do not bite or sting. They are beneficial to the ecosystem as decomposers, helping to break down organic waste into soil nutrients.

Identified on: 4/19/2026