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Genus Overview
No genus-level description defined.
Characteristics
POLLUTION TOLERANCE
Southeast: 0 and higher
Upper Midwest: 3 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Engulfer / Predator
MOVEMENT
Burrower
Sprawler
DISTRIBUTION
Widespread (east of the Rocky Mtns.)
HABITAT
Lentic-littoral
Lotic-depositional
Lotic-erosional
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Diagnostic Characters
+ Expanded Character List
Order: Wings and wing pads absent. Eye spots sometimes visible, but compound eyes absent. Segmented legs absent, but sometimes fleshy prolegs present. Sometimes with distinct head, often without head or with head drawn deeply into thorax. Body flattened, cylindrical, or maggot-like.
Family: The head is not evident, but is retracted inside the thorax; there are no segmented legs; abdominal segments have paired fleshy prolegs on five segments or roughened creeping welts on 4 segments; the posterior end of the abdomen has a pair of long slender lobes and sometimes with retractile anal gills below them.
Genus: Not defined.