Picture Winged Fly – Callopistromyia strigula

Picture Winged Fly – Callopistromyia strigula
Family Ulidiidae
(Otitidae) — picture-winged flies.
Insects & Spiders | Flies Index | Tachinidae | Dung Flies | Bee Flies | Robber Flies
Live adult flies photographed in the wild at Winfield, Illinois USA.

Several of the native North American picture-winged flies in the family Ulidiidae are often confused with fruit flies in the family Tephritidae. While the females of most species of Tephritidae oviposit in living, healthy plant tissue and their larvae live and feed in various parts of the plant, the larvae of most species of Ulidiidae are saprophagous. That is, they feed on dead and decaying organic materials. There are approximately 127 species of Ulidiidae in North America.

However, a few, such as Tritoxa flexa and Tetanops myopaeformis (R?er), attack living plant tissue. One of the picture-winged flies most often mistaken for a true fruit fly, some of which are important pests of citrus and other fruit, is Delphinia picta (Fabricius). Although the larvae of this fly have been collected from fallen ripe plums, well decayed, D. picta larvae do not attack fresh, healthy fruit.

Flies of North America – Order Diptera. Flies are prevalent in virtually all habitats, with over 16,000 species in North America. Flies can be distinguished from all other insects in that they only have one pair of normal wings. The other pair has evolved into small ball-like structures called halteres. Most flies have compound eyes and mouthparts adapted for piercing, lapping or sucking fluids.
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