Diptera.info :: Identification queries :: Diptera (adults)
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 Horsefly
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| Frederic |
Posted on 10-09-2006 17:24
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Member Location: Posts: 56 Joined: 10.09.06 |
Hello! Can anybody identify this horsefly? This photo was made in the Wetterau, Hesse, Germany on a damp meadow, 20th of July. Its length was between 2 and 3 cm, I don't know it exactly any more. I could it find neither in the internet nor in my scant literature. Can you help me with the identification, please? Thank you, Frederic Frederic attached the following image:  [123.19Kb] |
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| Frederic |
Posted on 10-09-2006 17:27
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Member Location: Posts: 56 Joined: 10.09.06 |
It looks like black stripes on bluish eyes! |
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| Nikita Vikhrev |
Posted on 11-09-2006 01:01
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 Member Location: Moscow, Russia Posts: 9350 Joined: 24.05.05 |
Hi Frederic, wellcome to Diptera.info! Everybody keep silence, because our main and best Tabanidae expert is Theo Zeegers. But being new member you may don't know that. I think that with this bluish eyes and appendix on R4 vein it has to be genus Atylotus. Confirmation of genus and species level, wait please for experts. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Zeegers |
Posted on 11-09-2006 08:12
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Member Location: Soest, NL Posts: 18823 Joined: 21.07.04 |
But Nikita is also clearly quite knowledgable himself in horseflies. Atylotus would be my suggestion as well. Based on the picture only, i cannot give a positive ID. Adding the info on locality and habitat, it should be A. rusticus. Theo Zeegers |
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| Frederic |
Posted on 11-09-2006 13:10
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Member Location: Posts: 56 Joined: 10.09.06 |
Thank you very much! But what means Nikita with "appendix on R4 vein"? And Atylotus rusticus has green eyes, hasn't it?
Edited by Frederic on 11-09-2006 13:18 |
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| Nikita Vikhrev |
Posted on 11-09-2006 15:51
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Member Location: Moscow, Russia Posts: 9350 Joined: 24.05.05 |
appendix on R4
Nikita Vikhrev attached the following image:  [47.82Kb] Nikita Vikhrev - Zool Museum of Moscow University |
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| Frederic |
Posted on 11-09-2006 15:56
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Member Location: Posts: 56 Joined: 10.09.06 |
Thank you for your answer. Now there is only the question why has my horsefly blue eyes and other of this species green? Look here: http://www.naturf...d89f2ebff3
Edited by Frederic on 11-09-2006 16:01 |
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| Kahis |
Posted on 11-09-2006 17:29
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 Member Location: Helsinki, Finland Posts: 1999 Joined: 02.09.04 |
make-up? 
Kahis |
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| Tony Irwin |
Posted on 11-09-2006 18:02
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 Member Location: Norwich, England Posts: 7236 Joined: 19.11.04 |
I wonder whether the camera is compensating for the intensely green background, and making your fly look much more blue than it is in reality. Perhaps if you shot the photo with a red or blue background, the eyes (and body) would appear more green?
Tony ---------- Tony Irwin |
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| Frederic |
Posted on 11-09-2006 18:04
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Member Location: Posts: 56 Joined: 10.09.06 |
Is it a male or female? |
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| Nikita Vikhrev |
Posted on 11-09-2006 19:11
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Member Location: Moscow, Russia Posts: 9350 Joined: 24.05.05 |
Female.
Nikita Vikhrev - Zool Museum of Moscow University |
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| Zeegers |
Posted on 12-09-2006 19:51
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Member Location: Soest, NL Posts: 18823 Joined: 21.07.04 |
About the eye colouration: The point of view is different, as is the light overall. This might very well explains it. Even in this picture the colouration of the eyes looks strange as compares to ordinary Tabanidae. or.... Kahis is right Theo |
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