VCSU Macro-Invertabrate Lab
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Order Diptera - The Aquatic Muscids
Distinguishing characteristics - The larvae for this group are not well known and can be confused with several other groups. The head capsule is partially retracted in thorax (Fig. B). They have posterior spiracles which are well exposed terminally (Fig. C) and the terminal abdominal segment is usually cut off squarely and/or setae are found only on intersegmental areas (Fig. D).

Tolerance Value - 6

Feeding Group - Predator

Notes - The Muscidae are mainly a terrestrial group with only a few members having aquatic larvae. They are predators that live in or on the margins of ponds and streams. The size of the Aquatic Muscids at maturity is 6-14 mm.

Penny Picture

Range Map

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