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View Thread :: Family forums :: Asilidae Forum
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Asilus crabroniformis
#1 Print Post
Posted on 06-10-2005 09:49

Posts: 167
Joined: 01.09.05

Hello !

I think that is an Asilus crabroniformis but I am not sure
P-Y Gloaguen : France : 29/8/2005 : Confort-Meilars : 29790
size : lenght : 24,7 mm ; scale : 40,2 mm

Gerard Pennards
#2 Print Post
Posted on 06-10-2005 11:13
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Location: Amersfoort
Posts: 1909
Joined: 07.06.04

This is indeed asilus crabroniformis!
Gerard Pennards
#3 Print Post
Posted on 06-10-2005 13:19

Posts: 167
Joined: 01.09.05

thank you Gerard

#4 Print Post
Posted on 09-08-2006 20:03

Posts: 55
Joined: 11.08.05

I wondered if we had a picture of this species in action somewhere.

Alas, my picture is not enough for publication. (My previous camera had spot auto-focusing and the latest one hasn't. I thought this essential function would come as standard. )

6 August 2006
A Hornet Robber Fly caught a Greenbottle and landed briefly on the Pixie Path. The Greenbottles were attracted by about a dozen to a dog's faex and the predatory insect pounced. This large fly was quick to fly off.
Edited by Perseus on 09-08-2006 20:04
#5 Print Post
Posted on 09-08-2006 20:14

Posts: 55
Joined: 11.08.05

I have not read this but


Smith, M. (2000) The hornet robber fly Asilus crabroniformis: land use and livestock grazing regimes at sites in England. English Nature Research Report No. 387.

I see these flies on Frampton's Field (Shoreham) every year.

It has been grazed by horses for 20+ years only.

Location page:


Andy Horton
Adur Valley (West Sussex VC13) Nature Notes
Adur Valley Nature Notes: August 2006
Adur Valley & Downs Gallery
#6 Print Post
Posted on 20-08-2006 21:42

Posts: 55
Joined: 11.08.05

I have found a better picture at:

but this one is not mine to post on this thread.

I would be interested in the type of dung that this fly is associated with. The one I have seen are all bar one next to a field of horses with great piles of dung. They capture greenbottles in all instances so far.
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