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Family Overview
The tip of the head is visible but is mostly reduced to a pair of slender rods retracted into the thorax; the mouth hooks (mandibles) move up and down parallel to one another; the body is cylindrical; there are usually four hairy lobes and no spiracles at the end of the abdomen and each of the abdominal segments has a pair of fleshy ventral prolegs with tiny apical hooks; if spiracles are present and only a single lobe is at the end of the body, then the abdominal segments lack prolegs but instead have transverse ventral creeping welts.
Characteristics
POLLUTION TOLERANCE
Mid-Atlantic: 6 and higher
Upper Midwest: 6 and higher
Midwest: 3.5 and higher
Southeast: 8.1 and higher
0 = least tolerant, 10 = most tolerant
FEEDING HABITS
Piercer / Predator
MOVEMENT
Burrower
Sprawler
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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 tip of the head is visible but is mostly reduced to a pair of slender rods retracted into the thorax; the mouth hooks (mandibles) move up and down parallel to one another; the body is cylindrical; there are usually four hairy lobes and no spiracles at the end of the abdomen and each of the abdominal segments has a pair of fleshy ventral prolegs with tiny apical hooks; if spiracles are present and only a single lobe is at the end of the body, then the abdominal segments lack prolegs but instead have transverse ventral creeping welts.