“Riffle Beetles”
Genus Overview
There are 6 species in North America. Very small, less than 2.2 mm long. Lateral carinae on pronotum.
Characteristics
POLLUTION TOLERANCE
Southeast: 2.1 and higher
Upper Midwest: 3 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
Scraper / Grazer
Shredder / Herbivore
Scraper / Grazer
Shredder / Herbivore
MOVEMENT
Burrower
Climber
Clinger
Climber
Clinger
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-depositional
Lotic-erosional
Lotic-erosional
Diagnostic Characters
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