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Efferia aestuans
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. The short, strong proboscis is used to stab and inject victims with saliva containing neurotoxic and proteolytic enzymes which paralyze and digest the insides; the fly then sucks the liquefied meal through the proboscis. Many species have long, tapering abdomens, sometimes with a sword-like ovipositor. Others are fat-bodied bumblebee mimics. Adult robber flies attack other flies, beetles, butterflies and moths, various bees, ants, dragon and damselflies, Ichneumon wasps, grasshoppers, and some spiders.
5 Comments
Thanks guys! I will update my spotting info.
Nice ! Very similar to this one:http://www.projectnoah.org/spottings/6906444
Robber fly - grat shot!
Nice shot! This is some type of Robberfly.
http://en.wikipedia.org/wiki/Robberfly
Wow - I just commented on a similar one a little while ago
http://www.projectnoah.org/spottings/709...