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 Which Trachinid fly?
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| wilde |
Posted on 16-09-2006 21:10
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Member Location: Posts: 175 Joined: 13.09.06 |
Black Trachinid, 13-15 mm, during the first weeks of August in my garden. Does it has a name? And what's it's victum? |
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| wilde |
Posted on 16-09-2006 21:30
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Member Location: Posts: 175 Joined: 13.09.06 |
Another picture: |
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| ChrisR |
Posted on 16-09-2006 21:42
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 Administrator Location: Posts: 7699 Joined: 12.07.04 |
Tachina grossa - but where in the world is your garden?  Victims (aka. hosts  ) are large, hairy lepidopteran larvae |
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| wilde |
Posted on 16-09-2006 22:19
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Member Location: Posts: 175 Joined: 13.09.06 |
My garden is in the Netherlands (koudekerke, Walcheren) I thought the T. grossa is much bigger: about 22-25 mm? |
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| Nikita Vikhrev |
Posted on 16-09-2006 22:34
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 Member Location: Posts: 9193 Joined: 24.05.05 |
Chris, I have to disagree. Neither general habit, nor, for example, long 3-d antennae and short 2-nd segment is for Tachina grossa, or Tachina sp. Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| Nikita Vikhrev |
Posted on 16-09-2006 22:49
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Member Location: Posts: 9193 Joined: 24.05.05 |
I'd say Eurithia sp.
Nikita Vikhrev - Zool Museum of Moscow University |
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| ChrisR |
Posted on 16-09-2006 23:13
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Administrator Location: Posts: 7699 Joined: 12.07.04 |
Hi Nikita - Yeah you are right, my mistake - a bad ID on my part ... never try to cook dinner AND identify flies at the same time!! |
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| wilde |
Posted on 17-09-2006 12:18
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Member Location: Posts: 175 Joined: 13.09.06 |
Does this picture make it clear? Which host is used by the Eurithia sp. ? Edited by wilde on 17-09-2006 12:25 |
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| Nikita Vikhrev |
Posted on 17-09-2006 12:49
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Member Location: Posts: 9193 Joined: 24.05.05 |
Hi Wilde. 1. Eurithia's hosts are varios Lepidoptera. 2. So far I know only one way ID surely Tachinidae by image - it is to wait for Theo Nikita Nikita Vikhrev - Zool Museum of Moscow University |
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| ChrisR |
Posted on 17-09-2006 15:44
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Administrator Location: Posts: 7699 Joined: 12.07.04 |
I don't think I'd accept many photographic IDs of Eurithia beyond just "Eurithia sp.", especially when the palp colour is not clear and we can't see any of the genitalia |
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| Zeegers |
Posted on 17-09-2006 19:34
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Member Location: Posts: 18446 Joined: 21.07.04 |
WEll, I agree with Chris that formally spoken the species might not be IDed from these pictures. However, given the fact that they are from Zeeland, I have no doubt whatsoever that this is Eu. anthophila. Especially the last picture is already very strongly in favour of this conclusion. So: Eurithia anthophila. Theo |
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| wilde |
Posted on 17-09-2006 20:41
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Member Location: Posts: 175 Joined: 13.09.06 |
Thanks Theo, I made several photographs, also on others days of August. The flies were very often seen on the umbels of Fennel. Here is another picture of the same fly (August 6th 2006). I hope the name doesn't change.  Albert de Wilde Edited by wilde on 17-09-2006 20:42 |
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| ChrisR |
Posted on 17-09-2006 20:45
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Administrator Location: Posts: 7699 Joined: 12.07.04 |
Here in England my assumption would certainly be anthophila ... until I had the fly under the microscope and could get a 'real' fix on it |
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