Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinidae - Lydina aenea
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| Morten A Mjelde |
Posted on 11-08-2022 23:01
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Member Location: Posts: 6261 Joined: 29.11.15 |
Light trap in garden. Southern Norway 10 August. Body length: 5.9 mm.
Morten A Mjelde attached the following image:  [302.3Kb] Edited by Morten A Mjelde on 13-08-2022 18:59 |
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| Morten A Mjelde |
Posted on 11-08-2022 23:01
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Member Location: Posts: 6261 Joined: 29.11.15 |
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Morten A Mjelde attached the following image:  [291.59Kb] |
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| Morten A Mjelde |
Posted on 11-08-2022 23:02
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Member Location: Posts: 6261 Joined: 29.11.15 |
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Morten A Mjelde attached the following image:  [302.69Kb] |
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| Morten A Mjelde |
Posted on 11-08-2022 23:02
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Member Location: Posts: 6261 Joined: 29.11.15 |
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Morten A Mjelde attached the following image:  [200.82Kb] Edited by Morten A Mjelde on 11-08-2022 23:03 |
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| Morten A Mjelde |
Posted on 11-08-2022 23:04
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Member Location: Posts: 6261 Joined: 29.11.15 |
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Morten A Mjelde attached the following image:  [298.04Kb] |
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| Morten A Mjelde |
Posted on 11-08-2022 23:05
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Member Location: Posts: 6261 Joined: 29.11.15 |
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Morten A Mjelde attached the following image:  [285.86Kb] |
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| Morten A Mjelde |
Posted on 11-08-2022 23:06
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Member Location: Posts: 6261 Joined: 29.11.15 |
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Morten A Mjelde attached the following image:  [225.36Kb] |
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| Morten A Mjelde |
Posted on 11-08-2022 23:06
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Member Location: Posts: 6261 Joined: 29.11.15 |
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Morten A Mjelde attached the following image:  [284.69Kb] |
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| Zeegers |
Posted on 12-08-2022 08:50
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Member Location: Soest, NL Posts: 18785 Joined: 21.07.04 |
First impression is Lydina, bit it is not as black as I am used to. Maybe result of the strong flash ? Theo |
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| John Carr |
Posted on 12-08-2022 14:23
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 Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
Zeegers wrote: First impression is Lydina, bit it is not as black as I am used to. Maybe result of the strong flash ? Theo I was also thinking Polideini. Sternite 5 has the right shape for Lydina (O'Hara 2002 figure 72). |
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| Zeegers |
Posted on 12-08-2022 15:08
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Member Location: Soest, NL Posts: 18785 Joined: 21.07.04 |
Good point. If you still have the specimen, you can check whether lappets of posterior spiracle are “Rhinophorid / Polideini”- like Theo |
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| Morten A Mjelde |
Posted on 12-08-2022 23:58
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Member Location: Posts: 6261 Joined: 29.11.15 |
Thank you so much John and Theo! The fly is rather dark. I think it may be similar to Lydina aenea (which I found in a light trap on 1 August last year), but the third antennal segment is different. Not sure what "Rhinophorid / Polideini"- like is, but perhaps the attached picture can tell something. Morten A Mjelde attached the following image:  [291.88Kb] |
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| Zeegers |
Posted on 13-08-2022 08:09
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Member Location: Soest, NL Posts: 18785 Joined: 21.07.04 |
This is what it is  There are two lappets of equal size, which is very unusual in Tachinidae and the almost unique feature for Polideini. In other Tachinidae, one lappet fills the whole aperture and the other is strongly reduced. Theo |
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| Morten A Mjelde |
Posted on 13-08-2022 13:27
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Member Location: Posts: 6261 Joined: 29.11.15 |
Thanks! Interesting! So then it's Lydina aenea? Cannot find Lydina or Polideini in The Tachinids (Diptera: Tachinidae) of Central Europe. Morten |
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| John Carr |
Posted on 13-08-2022 14:50
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Member Location: Massachusetts, USA Posts: 10172 Joined: 22.10.10 |
Morten A Mjelde wrote: Thanks! Interesting! So then it's Lydina aenea? Cannot find Lydina or Polideini in The Tachinids (Diptera: Tachinidae) of Central Europe. Morten You have only the one species in Europe. It keys out at couplet 114 with summary on page 95 in the English version of The Tachinids (Diptera: Tachinidae) of Central Europe. That publication places Lypha and Lydina in tribe Linnaemyini. The original German version was written before O'Hara defined the Polideini and revised the North American species. |
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| Morten A Mjelde |
Posted on 13-08-2022 18:58
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Member Location: Posts: 6261 Joined: 29.11.15 |
Thank you very much, John, for the useful information! Morten |
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