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Robber fly


Robber fly
Photo Information
Copyright: Ka Lis (avallaunius) Silver Star Critiquer/Silver Note Writer [C: 27 W: 8 N: 44] (230)
Genre: Animals
Medium: Color
Date Taken: 2008-07-06
Categories: Insects
Camera: canon PowerShot G9
Exposure: f/4, 1/200 seconds
More Photo Info: [view]
Photo Version: Original Version
Theme(s): Robber flies (Diptera: Asilidae) of Europe, Dipterans (except Hover flies) of Europe-1 [view contributor(s)]
Date Submitted: 2008-08-19 9:24
Viewed: 3365
Points: 4
[Note Guidelines] Photographer's Note
Order: Diptera
Suborder: Brachycera
Superfamily: Asiloidea
Family: Asilidae

Robber flies is the common name of flies in the Diptera family Asilidae. 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, dragon and damselflies, Ichneumon wasps, grasshoppers, and some spiders.

The larvae are often found in decaying organic matter, such as dung heaps and rotting logs. Other species live in the soil. In most species the larvae are omnivorous.

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To cicindela: greetingsavallaunius 1 08-19 12:29
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Critiques [Translate]

Hello Nikos!
If this species was photpgraphed in Central Europe I would say that this can ba some Neotitamus species. But Greek fauna is very rich in Asilidae I it is not easy to identify this specimen (but I will try later :>).
According to the picture, it has good quality and sharpness, on the other hand it is a pitty that fly's abdomen was cutted :(
By the way, I would like to add your picture to my theme "Asilidae of Europe" if you agree :)
All the best from Poland!
Friendly yours,
Radomir

Kalimera Niko,

Nice macro shot!
TFS.

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