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 Robber fly ID
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| Toby |
Posted on 31-03-2007 23:51
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 Member Location: SW LONDON Posts: 546 Joined: 12.01.07 |
can you tell from underside which sp. this is? Richmond Pk, SW London. June. Looking through the gallery i'm guessing a Dioctria sp.?
Edited by Toby on 01-04-2007 00:09 |
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| Toby |
Posted on 01-04-2007 00:10
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Member Location: SW LONDON Posts: 546 Joined: 12.01.07 |
think I may have now found it in BioImages using the Dioctria lead. D. baumhaueri?
Edited by Toby on 01-04-2007 00:11 |
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| Danny Wolff |
Posted on 01-04-2007 18:59
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 Member Location: Germany Posts: 328 Joined: 27.05.04 |
Should be Dioctria atricapilla (legs completely black, wings partly darkened ...). Prey looks like a Leptogaster. Greetings, Danny |
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| Toby |
Posted on 01-04-2007 19:42
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Member Location: SW LONDON Posts: 546 Joined: 12.01.07 |
mmmh, I think this side view might support D. baumhaueri - see http://www.bioimages.org.uk/HTML/P3/P39395.php |
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| Danny Wolff |
Posted on 02-04-2007 18:15
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Member Location: Germany Posts: 328 Joined: 27.05.04 |
Well, if you are sure that it is the same specimen (having lost its prey and changed its resting place?), then you are right with D. baumhaueri, which we call D. hyalipennis in Central Europe. (Curious that nothing of the pale leg-colour is to be seen in your first image). Such dark hyalipennis are very seldom in Central Europe. Greetings, Danny |
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| Paul Beuk |
Posted on 02-04-2007 19:31
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 Super Administrator Location: Netherlands Posts: 19225 Joined: 11.05.04 |
They are not the same species (leg coloours are off). Top is atricapilla, bottom is hyalipennis (= baumhaueri).
Paul - - - - Paul Beuk on https://diptera.info |
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| Kahis |
Posted on 02-04-2007 19:34
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
The females are not conspecific. While most of the yellow could be hidden in the first picture, some parts (base of femora and trochanters) are clearly yellow on the anterior face on the 2nd fly, but black on the 1st.
Kahis |
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| Toby |
Posted on 02-04-2007 21:20
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Member Location: SW LONDON Posts: 546 Joined: 12.01.07 |
my mistake the images were captured two weeks apart. Thanks for the IDs. |
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but don't see the image in the post.
