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Efferia aestuans
This robberfly was having a meal on the trail. Robber flies have stout, spiny legs, a dense moustache of bristles on the face (mystax), and 3 simple eyes (ocelli) in a characteristic depression between their two large compound eyes. The mystax helps protect the head and face when the fly encounters prey bent on defense. The antennae are short, 3-segmented, sometimes with a bristle-like structure called an arista.
Collin County Adventure Camp is a branch of the YMCA of Metropolitan Dallas and an ACA accredited facility and program. Explore the unique environment of the Black Land Prairie in our Outdoor Education program.
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