Diptera.info :: Identification queries :: Diptera (adults)
 Tachinidae: Bactromyia aurulenta?
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| PhilC |
Posted on 05-09-2020 23:31
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 Member Location: Essex, UK Posts: 52 Joined: 17.12.13 |
This small (c.5mm), female tachinid was found in a building on a nature reserve in south Essex, England on 27th July 2018. The surrounding area is mainly freshwater grazing marsh with some scrub and grassland. I have keyed it out as Bactromyia aurulenta using both Belshaw and Tschorsnig & Herting. It also comes out as Bactromyia if I run it through MOSCHweb. All the characters seem to agree with that species except that the scutellar apicals do not appear to be raised as mentioned in couplet 226 of T&S. As this is the first time I have come across the species I would be glad of a second opinion. It seems to be uncommon in Britain. PhilC attached the following image:  [85.88Kb] Edited by PhilC on 05-09-2020 23:35 |
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| PhilC |
Posted on 05-09-2020 23:32
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Member Location: Essex, UK Posts: 52 Joined: 17.12.13 |
Dorsal view.
PhilC attached the following image:  [87.62Kb] |
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| PhilC |
Posted on 05-09-2020 23:33
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Member Location: Essex, UK Posts: 52 Joined: 17.12.13 |
Head.
PhilC attached the following image:  [111.62Kb] |
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| PhilC |
Posted on 05-09-2020 23:34
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Member Location: Essex, UK Posts: 52 Joined: 17.12.13 |
Wing.
PhilC attached the following image:  [85.57Kb] |
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| Zeegers |
Posted on 06-09-2020 07:35
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Member Location: Soest, NL Posts: 19112 Joined: 21.07.04 |
Yes, general colouration and wing venation look good for B. aurulenta. The apical scutellars should indeed be erect, but sometimes only by 30 degrees. And / or maybe you accidentally adpressed them while pinning. Theo |
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| PhilC |
Posted on 06-09-2020 10:57
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Member Location: Essex, UK Posts: 52 Joined: 17.12.13 |
Many thanks, Theo. |
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