“Spiny Crawler Mayflies”
Genus Overview
There are 5 species in North America. The genus is know from small streams to large rivers in swift current.
Characteristics
POLLUTION TOLERANCE
Southeast: 2.1 and higher
Upper Midwest: 2 and higher
Midwest: 1.3 and higher
Mid-Atlantic: 2 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
MOVEMENT
Clinger
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-depositional
Lotic-erosional
Lotic-erosional
Diagnostic Characters
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