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Insects in the Diptera family Asilidae are commonly called robber flies. The family Asilidae contains about 7,100 described species worldwide.
All 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.
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| Camera - Nikon Model - D7000 Exposure - 1/160s Aperture - F14 Focal Length - Kitlens@105mm + Raynox DCR250 ISO Value - 200 |
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Camera - Nikon
Model - D7000 Exposure - 1/200s Aperture - F16 Focal Length - Kitlens@105mm + Raynox DCR250 ISO Value - 200
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Camera - Nikon
Model - D7000 Exposure - 1/200s Aperture - F16 Focal Length - Kitlens@105mm + Raynox DCR250 ISO Value - 200 |
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