“Seine-net Weaver Caddisflies”
Genus Overview
This is a very distinct genus of Hydropsychidae with the large flattened space on their heads. They produce highly specialized larval retreats and capture nets. The flattened head is thought to restrict water flow through their retreats to their direct flow to their capture nets. There are 3 species in North America. They tend to be in larger streams and rivers and feed off of fine particles of organic matter, phytoplankton and bacteria.
Characteristics
POLLUTION TOLERANCE
Southeast: 3.6
Upper Midwest: 3
Midwest: 1.8
Mid-Atlantic: 3
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Filterer
MOVEMENT
Clinger
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-erosional
Diagnostic Characters
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