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°Promachus vertebratus°°


°Promachus vertebratus°°
Photo Information
Copyright: Sergio Stella (flashpoint) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 630 W: 133 N: 4324] (28008)
Genre: Animals
Medium: Color
Date Taken: 2008-06-10
Categories: Insects
Exposure: f/8, 1/250 seconds
More Photo Info: [view]
Photo Version: Original Version
Theme(s): Dipterans (except Hover flies) of Europe-1, Dipterans (except Hover flies) of Europe-3 [view contributor(s)]
Date Submitted: 2008-06-11 4:27
Viewed: 3392
Points: 4
[Note Guidelines] Photographer's Note
Robber Fly

Flies in the Diptera family Asilidae are commonly known as 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, 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. Others species live in the soil. In most species the larvae are omnivorous.

thanks nagraj for identification


Make: NIKON CORPORATION
Model: NIKON D40X
Software: Paint Shop Pro Photo 11,20
Exposure Time: 10/2500 sec
F-Stop: f/8.0
ISO Speed Ratings: 1600
Focal Length: 105 mm
Date Taken: 2008-06-10 19:16
Metering Mode: Pattern
File Size: 64 kb


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Critiques [Translate]

  • Great 
  • nagraj Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1618 W: 106 N: 3208] (15166)
  • [2008-06-11 4:31]

hi sergio,
this is roberfly, checkout.
good shot of this with daisies.
nagraj.v

Hello Sergio,
Good sharpness. Well composed.
TFS
Annick

Hello Sergio,

First let me say that it is a beautiful picture. The ID is not right, this is not a Promachus species. I would say this is Machimus cf rusticus.

Kind regards,

Reinoud

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