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Genus Overview
No genus-level description defined.
Characteristics
POLLUTION TOLERANCE
Southeast: 8.6 and higher
Midwest: 6.7 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
Piercer / Herbivore
Shredder / Herbivore
MOVEMENT
Climber
Diver
Swimmer
DISTRIBUTION
HABITAT
Lentic-littoral
Diagnostic Characters
+ Expanded Character List
Order: Adults with hardened forewings (elytra) covering the hind wings. 
Family: Maxillary palpi usually longer than antennae. Antennae about as long as head, with 2nd segment attached at apex of 1st (basal-most) segment; usually with 5 segments before cupule (cup-shaped, hairless, segment 6); segments 7–9 clubbed. Pronotum usually not narrower than elytra; if narrower, then scutellum long and triangular. Elytra concealing entire abdomen or exposing only part of 1 segment. Hind coxae not extending in the posterior direction to divide abdominal sternite 1. Metacoxae nearly touching. Ventrally, longitudinal keel narrow between coxae. Tarsal formula: 5-5-5 or 5-4-4. Ventrally, abdomen with 5 visible segments.
Genus: Not defined.