Diptera.info :: Identification queries :: Diptera (adults)
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 Tachinidae, Blepharomyia angustifrons? Netherlands -> Lypha dubia
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| Paul Hoekstra |
Posted on 25-11-2021 00:04
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Member Location: Netherlands Posts: 75 Joined: 03.07.11 |
I key this specimen with some doubt to Blepharomyia angustifrons, could that be correct? 3 specimens in yellow pan trap, 12 April 2021, Renkum, Netherlands. Thanks for any reply        
Edited by Paul Hoekstra on 07-12-2021 22:20 |
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| Zeegers |
Posted on 25-11-2021 09:06
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Member Location: Soest, NL Posts: 18604 Joined: 21.07.04 |
That is very unlikely / hardly possible. Check for Phorocera (genitalia highly distinctive) Theo Edited by Zeegers on 25-11-2021 09:06 |
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| Paul Hoekstra |
Posted on 26-11-2021 22:21
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Member Location: Netherlands Posts: 75 Joined: 03.07.11 |
Thank you for your comment. I first also thought Phorocera, but I could not key to that genus as I could not see any hairs on the prosternum nor a shadowfold of vein M. I checked the drawings of Phorocera genitalia in Emden 1954, but I think/guess the genitalia do not match. Keying the specimens with Emden 1954 I end up with Blepharomyia pagana, maybe that is a better match than B. angustifrons. I have added some extra photos of the wing venation, prosternum, genitalia and front and rear view of the head. I am not entirely sure if these photo are of the same specimen as the previous photos, but all 3 specimens look very similar and have the same wing venation and chaetotaxy on the head.       |
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| Zeegers |
Posted on 27-11-2021 10:47
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Member Location: Soest, NL Posts: 18604 Joined: 21.07.04 |
Hi Paul, thanks for this effort. So we are making progress. It is defintely not Blepharomyia nor Phorocera. I am pretty sure it is the male of Lypha dubia. Check the lappets on hind spiracle, difficult feature but highly distinctive ! Normally, you can ID this species even with binoculairs by its bronze colouration, but pan traps do not help here Very common spring species. Theo |
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| Paul Hoekstra |
Posted on 06-12-2021 22:39
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Member Location: Netherlands Posts: 75 Joined: 03.07.11 |
Hi Theo, Thank you for all your help. The feature of the lappets is not that visible on my photo's, but I think they agree with Lypha. 
Edited by Paul Hoekstra on 06-12-2021 22:39 |
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| Zeegers |
Posted on 07-12-2021 11:23
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Member Location: Soest, NL Posts: 18604 Joined: 21.07.04 |
Yes, they do ! Theo |
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but don't see the image in the post.
