Genus Overview
There are 28 species in North America. This genus is well known as a Net-Winged Midge.
Characteristics
POLLUTION TOLERANCE
Southeast: 0.2 and higher
Upper Midwest: 0 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Scraper / Grazer
MOVEMENT
Clinger
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-erosional
Diagnostic Characters