“Broadbacks, Winter Stoneflies”
Genus Overview
The genus Taeniopteryx includes 11 known North American species. Larvae can be found in very diverse habitats ranging from cool or warm springs, rock or sand-bottomed streams, and sometimes even in intermittent streams; usually they are in fast water, but sometimes in depositional areas at stream margins. Typically they are clingers and sprawlers in coarse sediments, wood, leaf packs, or other debris. Sometimes they allow algae, fungus, and other debris to build up on their back to aid in camouflage, giving them a dirty appearance.
Characteristics
POLLUTION TOLERANCE
Southeast: 1.4 - 6.3
Upper Midwest: 2
Mid-Atlantic: 2
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Collector / Gatherer
Scraper / Grazer
Shredder / Detritivore
Scraper / Grazer
Shredder / Detritivore
MOVEMENT
Clinger
Sprawler
Sprawler
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lotic-depositional
Lotic-erosional
Lotic-erosional
Diagnostic Characters
Media
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