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Diptera.info :: Identification queries :: Diptera (adults)
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Thecophora
jostein
#1 Print Post
Posted on 22-01-2020 18:01
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Hi
I wonder if anyone could help with this Thecophora from SE Norway mid July last year.
We've been trying to key it using van Veen, but we are unsure about how to interpret the theca and we don't have any material for comparison.
If we go for round and wide, which we think fits best, we land pretty steady on T. bimaculata. The problem is that this is stated to belong in southern and central Europe, which Norway can hardly be assigned to.
If we go for the other choice on theca we kind of land on T. atra which would clearly be a much more likely result, but we can't find anything to suggest that T. atra can have twocoloured femora to the extent that our specimen does.
Any input would be very welcome.

Jostein
jostein attached the following image:


[107.97Kb]
Edited by jostein on 23-01-2020 10:03
 
Paul Beuk
#2 Print Post
Posted on 22-01-2020 18:16
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jostein wrote:
(pictures will come as soon as I figure out why they don't upload)
Have you checked the FAQ?
Paul

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Paul Beuk on https://diptera.info
 
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jostein
#3 Print Post
Posted on 22-01-2020 18:24
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From the side, showing extent of red on femora.
jostein attached the following image:


[106.18Kb]
Edited by jostein on 23-01-2020 10:03
 
jostein
#4 Print Post
Posted on 22-01-2020 18:25
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Theca from the side
jostein attached the following image:


[130.95Kb]
 
jostein
#5 Print Post
Posted on 22-01-2020 18:26
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And finally, theca from behind.
jostein attached the following image:


[180.68Kb]
 
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Date and time
22 February 2020 11:17
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