Genus Overview
7 species in North America. As adults they hold and fold their wings along their back. They are one of the few genera found in flowing water.
Characteristics
POLLUTION TOLERANCE
Southeast: 4.6 and higher
Upper Midwest: 3 and higher
Midwest: 2.2 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
MOVEMENT
Clinger
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-erosional
Diagnostic Characters