“Predacious Diving Beetles”
Genus Overview
There are at least 106 species of this genus in North America. Adults and larvae inhabit both fast and slow streams and littoral zones of lentic habitats. They are piercing predators. Adults are climbers on rooted plants and efficient swimmers.
Characteristics
POLLUTION TOLERANCE
Mid-Atlantic: 8 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Piercer / Predator
MOVEMENT
Diver
Swimmer
Swimmer
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lentic-littoral
Lotic-depositional
Lotic-erosional
Lotic-depositional
Lotic-erosional
iNaturalist
Diagnostic Characters
