Diptera.info :: Identification queries :: Diptera (adults)
 Tachina grossa
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| brigitteu |
Posted on 07-01-2011 20:26
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 Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
hi to give some pics in gallery (Tachina grossa don't have a lot) I would like sure that this is Tachina grossa. Could anybody confirm please? Switzerland, 04.08.2010, 965 msm, highmoor Thanks a lot, Brigitte brigitteu attached the following image:  [39.77Kb] |
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| brigitteu |
Posted on 07-01-2011 20:26
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
2
brigitteu attached the following image:  [25.86Kb] |
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| ChrisR |
Posted on 07-01-2011 20:36
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 Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
Certainly looks good to me 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| brigitteu |
Posted on 07-01-2011 21:59
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Hi Chris Can you see if it's a male or female? Does a pic from the backside helps (if needed)? Thanks, Brigitte |
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| ChrisR |
Posted on 07-01-2011 22:34
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Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
I don't see very many of them but I would say (from the length of the tarsal claws) that it is a male
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| brigitteu |
Posted on 07-01-2011 22:44
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Thanks Chris! does this pic help? Brigitte brigitteu attached the following image:  [26.51Kb] |
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| brigitteu |
Posted on 07-01-2011 22:51
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
This is another one, same day, same place. Is this one male oder female? Brigitte brigitteu attached the following image:  [62.01Kb] Edited by brigitteu on 07-01-2011 22:51 |
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| ChrisR |
Posted on 07-01-2011 22:51
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Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
It just makes it look even more male than before 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| brigitteu |
Posted on 07-01-2011 22:54
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Thanks! Last pic is another animal. Male too? |
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| ChrisR |
Posted on 07-01-2011 22:55
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Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
The second looks male too - long tarsal claws - but I might be wrong
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| brigitteu |
Posted on 07-01-2011 22:57
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
Thanks a lot Chris |
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| ChrisR |
Posted on 07-01-2011 23:00
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Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
I've checked mine here and males do have longer tarsal claws than the females so I am probably OK on those determinations
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| brigitteu |
Posted on 07-01-2011 23:05
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Member Location: Switzerland Posts: 895 Joined: 08.07.09 |
so I can use "male" for gallery? all pics which are already shown in gallery are without "male/female" . . . I'm just searching my pics from 2009, there it must have T.grossa too . . . no result, very old fly 2009 . . . Edited by brigitteu on 07-01-2011 23:13 |
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| ChrisR |
Posted on 07-01-2011 23:20
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Super Administrator Location: Reading, England Posts: 7703 Joined: 12.07.04 |
Hmm, I think it is fair to call it male ... unless Theo says otherwise 
Manager of the UK Species Inventory in the Angela Marmont Centre for UK Biodiversity at the Natural History Museum, London. |
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| Zeegers |
Posted on 08-01-2011 11:43
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Member Location: Soest, NL Posts: 19143 Joined: 21.07.04 |
it is a male. you can see the large genitalia, though out of focus, and proclinate orbitals are lacking. Vertex is pretty broad, though. Theo |
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| hedy2411 |
Posted on 08-01-2011 19:47
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 Member Location: Zeist, Holland Posts: 5232 Joined: 20.11.09 |
I'm just the new-comer with a shortage of knowledge, but what I think that picture 2 (the frontal close-up) is from a different lady fly to see to the shape of the eye. Espacially if you compare 1 and 2 together you may see that the eyes of 1 are more oval which is the male, compared to the black like under the antennas and no dark line in the middele of the head. Could it be possible that you had two flies...? Regards, Hedy |
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| Zeegers |
Posted on 09-01-2011 18:12
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Member Location: Soest, NL Posts: 19143 Joined: 21.07.04 |
I'm afraid you are misled by the different angle of view. Since the proclinate orbital setae are lacking, the second picture cannot be female. Theo |
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