Genus Overview
This large genus includes 106 species in North America. Adults and larvae inhabit both fast and slow streams and littoral zones of lentic habitats. They are piercing predators.
Characteristics
POLLUTION TOLERANCE
Mid-Atlantic: 8 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Piercer / Predator
MOVEMENT
Sprawler
Swimmer
Swimmer
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lentic-littoral
Lotic-depositional
Lotic-erosional
Lotic-depositional
Lotic-erosional
iNaturalist
Diagnostic Characters