VCSU Macro-Invertabrate Lab
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Order Diptera - The Biting Midges
Distinguishing characteristics - The larvae of the biting midges head capsule is usually complete and exposed (Fig. B). Most of the types collected in North Dakota have a thin, worm like appearance (Fig. A) and may be confused with Chironomid larvae. Their abdominal segments lack prolegs, although some types may have one on the anal segment (Fig. C). The pupa appears as in figures D and E.

Tolerance Value - 6

Feeding Group - Predator

Notes - There are a wide variety of biting midges in North America with several types of larvae. In North Dakota we find those that appearance is similar to what is shown in our pictures. They are found in a variety of aquatic habitats in the vegetation along the shore. Some species are omnivorous, and others feed on insect eggs, periphyton, or small detritus. As their name implies, adults of many species can inflict a painful bite and have common names such as "punkies" and "no-see-ums". The size of the biting midge larvae at maturity is 2-15 mm.

Penny Picture

Range Map

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