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Diptera.info :: Identification queries :: Diptera (adults)
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Which Trachinid fly?
wilde
#1 Print Post
Posted on 16-09-2006 21:10
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Location: Koudekerke, Netherlands
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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?
wilde attached the following image:


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wilde
#2 Print Post
Posted on 16-09-2006 21:30
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Another picture:
wilde attached the following image:


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ChrisR
#3 Print Post
Posted on 16-09-2006 21:42
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Tachina grossa - but where in the world is your garden? Smile Victims (aka. hosts Wink) are large, hairy lepidopteran larvae Smile
 
http://tachinidae.org.uk
wilde
#4 Print Post
Posted on 16-09-2006 22:19
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Location: Koudekerke, Netherlands
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My garden is in the Netherlands (koudekerke, Walcheren)Sad
I thought the T. grossa is much bigger: about 22-25 mm?
 
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Nikita Vikhrev
#5 Print Post
Posted on 16-09-2006 22:34
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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
 
Nikita Vikhrev
#6 Print Post
Posted on 16-09-2006 22:49
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I'd say Eurithia sp.
Nikita Vikhrev - Zool Museum of Moscow University
 
ChrisR
#7 Print Post
Posted on 16-09-2006 23:13
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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!! Wink
 
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wilde
#8 Print Post
Posted on 17-09-2006 12:18
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Location: Koudekerke, Netherlands
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Does this picture make it clear?
Which host is used by the Eurithia sp. ?
wilde attached the following image:


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Edited by wilde on 17-09-2006 12:25
 
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Nikita Vikhrev
#9 Print Post
Posted on 17-09-2006 12:49
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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 TheoWink
Nikita

Nikita Vikhrev - Zool Museum of Moscow University
 
ChrisR
#10 Print Post
Posted on 17-09-2006 15:44
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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 Smile
 
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Zeegers
#11 Print Post
Posted on 17-09-2006 19:34
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Location: Soest, NL
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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
 
wilde
#12 Print Post
Posted on 17-09-2006 20:41
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Location: Koudekerke, Netherlands
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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.Grin

Albert de Wilde
wilde attached the following image:


[131.9Kb]
Edited by wilde on 17-09-2006 20:42
 
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ChrisR
#13 Print Post
Posted on 17-09-2006 20:45
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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 Smile
 
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