dark brown, about 5-6 mm., and has been taken in low vegetation bordering mountain streams.

MARCH FLIES Family Bibionidae Identification: Small to medium-sized, stout-bodied, and usually black. Ocelli present. Antennae short, rising low on face. Thickened section of C ends near wing tip. Anal angle of wing usually well developed. Pulvilli (pads beneath tarsal claws) present. Tibiae with apical spurs.

March flies are common insects usually found on flowers. Larvae feed on roots and in decaying vegetation. Adults are most common in spring and early summer; some species are abundant in March (hence the common name).

FUNGUS GNATS Family Mycetophilidae Identification: Slender, long-legged, mosquitolike, with elongated coxae. Ocelli present. Thickened section of C ends near wing tip. Rs simple or 2-branched; if 2-branched the fork is beyond r-m, or r-m is obliterated by the fusion of Rs and M. Eyes do not meet above antennae. Pulvilli (see above) absent or minute.

This is a large group whose members are common in areas where there is an abundance of decaying vegetation or fungi. Most species are between 5 and 10 mm. and have relatively long antennae. Larvae live in fungi, decaying vegetation, or moist soil.


Identification: Similar to Mycetophilidae, but eyes meet above bases of antennae. R-m cross vein appears as a basal continuation of Rs, the base of Rs resembling a cross vein.

Sciarids are common insects usually found in moist shady places. Most species are 5 mm. or less, and dark-colored. Larvae feed in fungi, decaying vegetation, or on plant roots; a few species are pests in mushroom cellars.

MINUTE BLACK SCAVENGER FLIES Family Scatopsidae Identification: Black or dark brown, 3 mm. or less, rather stocky in build, with short antennae. Veins in anterior part of wing heavy, remaining veins weak. Rs not forked. Palps 1-segmented.

Scatopsid larvae occur in decaying material and excrement, and adults are usually found around such materials; adults often enter houses, where they are generally seen on windows. These flies are fairly common.

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