new icn messageflickr-free-ic3d pan white
-- [ Diptera family Asilidae ] - Robber Fly -- Explored Frontpage | by Glen Espinosa Photography
Back to group

-- [ Diptera family Asilidae ] - Robber Fly -- Explored Frontpage

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.

 

Technical info:

100mm f2.8 L macro lens + 20mm ET + Raynox DCR-250

f18

1/100

ISO200

270 EX + DIY diffuser

handheld

10,931 views
111 faves
154 comments
Taken on June 15, 2011