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 Cannibalism - Robberyflies
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| Markus Gebel |
Posted on 20-07-2006 12:10
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 Member Location: Posts: 210 Joined: 18.07.06 |
Hello Here I show a robbery fly which eats a fellow. Which species are to be seen on the picture??? The photo arose in West-Germany in an old oak forest (15.07.2006). Both flies were very big and strong. Who can help me? Greetings Markus Edited by Markus Gebel on 20-07-2006 12:13 |
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| Tony Irwin |
Posted on 21-07-2006 20:27
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 Member Location: Posts: 7168 Joined: 19.11.04 |
These are Eutolmus rufibarbis females. This is a species normally associated with heathland and other sandy areas in Britain, but it also occurs in open woodland. The ovipositor shape is quite distinctive. Another stunning shot - brilliant! 
Tony ---------- Tony Irwin |
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| Markus Gebel |
Posted on 22-07-2006 21:31
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Member Location: Posts: 210 Joined: 18.07.06 |
@Tony: What would I do without your references? Thanx! Your compliments please me very much, but this foto is maken from my friend, but the other photographs are from me.:-) best regards Markus http://www.digitale-naturfotos.de/ |
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| Markus Gebel |
Posted on 23-07-2006 22:35
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Member Location: Posts: 210 Joined: 18.07.06 |
@Tony: What do you think about Dysmachus trigonus (Meigen, 1804)? Greetings Markushttp://www.digita...rfotos.de/ |
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| Tony Irwin |
Posted on 23-07-2006 23:32
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Member Location: Posts: 7168 Joined: 19.11.04 |
Hi Markus Dysmachus has much longer bristles on the hind margin of the tergites, and on the thorax. Also in Dysmachus most of the large leg bristles are white, not black. The ovipositor is certainly similar to Eutolmus, but there are differences in shape which are evident in the photo. Tony ---------- Tony Irwin |
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| Markus Gebel |
Posted on 23-07-2006 23:49
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Member Location: Posts: 210 Joined: 18.07.06 |
Hello Tony You name fineness which I would'nt have seen without your aid. Yes, the bristles are here black. Seen very good Tony. Thanx a lot..-)... and many greetings from the very hot Germany Markus |
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