Diptera.info :: Identification queries :: Diptera (adults)
 Bithia spreta <- tachinid with red lateral abdomen
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| Carnifex |
Posted on 11-09-2025 23:21
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 Member Location: Vienna, Austria Posts: 2001 Joined: 23.06.15 |
Tried the Tschorsnig key, but apparently took a wrong turn somewhere... Lower Austria, mid Sept    
Edited by Carnifex on 12-09-2025 22:26 Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| John Carr |
Posted on 12-09-2025 13:43
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 Super Administrator Location: Massachusetts, USA Posts: 10525 Joined: 22.10.10 |
Some characters made me think Leskiini, but the wing veins have too many hairs. In North America the veins other than R1 and the base of R4+5 are bare. |
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| eklans |
Posted on 12-09-2025 14:46
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Member Location: Franconia, Germany Posts: 4265 Joined: 11.11.18 |
If the scapi are distinctly separated (2/3 width of flagellum) - a dorsal view could help - what about Eriothrix monticola?
Greetings, Eric |
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| John Carr |
Posted on 12-09-2025 15:20
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Super Administrator Location: Massachusetts, USA Posts: 10525 Joined: 22.10.10 |
eklans wrote: If the scapi are distinctly separated (2/3 width of flagellum) - a dorsal view could help - what about Eriothrix monticola? I expect Eriothrix to have strong crossed apical (or subapical) scutellar bristles, typical of Dexiinae. |
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| Carnifex |
Posted on 12-09-2025 15:25
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Member Location: Vienna, Austria Posts: 2001 Joined: 23.06.15 |
Michael Knapp suggested Bithia spreta - a species which seems to have an affinity for Achillea. Also, it seem I took a wrong turn when it came to "cheeks bare vs not bare". I thought the few hair would be sufficient to count as 'not bare' - but seems I was mistaken Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| Zeegers |
Posted on 12-09-2025 21:49
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Member Location: Soest, NL Posts: 19201 Joined: 21.07.04 |
Yes, Bithia spreta would be my suggestion as well. Theo |
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| Carnifex |
Posted on 12-09-2025 22:26
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Member Location: Vienna, Austria Posts: 2001 Joined: 23.06.15 |
Thanks guys!
Cheers, Lorin Font Color All requests are from the urban area of Vienna, if not otherwise stated. My Diptera observations (and other living forms) can be found here, and corrections or comments over there would also be appreciated. |
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| Zeegers |
Posted on 15-09-2025 16:15
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Member Location: Soest, NL Posts: 19201 Joined: 21.07.04 |
and, I just noted John's post, spreta has hairs on R1, characteristic. So that figures ! Theo |
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