Picturewinged Fliessee also PI

Family Otitidae

Identification: Small to medium-sized, usually blackish and shiny. Wings often banded or patterned. Sc complete, only slightly curved at tip. Anal cell generally with an acute distal projection posteriorly (if anal cell is rounded apically, then costa is not broken, postvertical bristles are parallel or convergent, sternopleural bristles are usually present, and anterior side of anal cell is usually less than y± as long as posterior side of discal cell). Oral vibrissae lacking. Without well-developed bristles on anterior half of front. Tibiae usually without preapical bristles.

These flies are common in moist places, and are sometimes quite abundant. Habits of the larvae vary — some are plant feeders (a few of these are pests of cultivated plants) and some occur in decaying materials.

PLATYSTOMATID FLIES Family Platystomatidae

Identification: Similar to Otitidae, but anal cell always rounded apically, its anterior side more than as long as posterior side of discal cell. Ri with bristles. Sternopleural bristles lacking; propleural bristles weak or lacking. Costa not broken near end of Sc.

This is a much smaller group than the Otitidae but some species are fairly common. The wings are usually marked with narrow dark bands, and the costa is not broken.

0 0

Post a comment