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View Thread :: Identification queries :: Diptera (adults)
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Tachinidae, Blepharomyia angustifrons? Netherlands -> Lypha dubia
Paul Hoekstra
#1 Print Post
Posted on 25-11-2021 00:04

Location: Netherlands
Posts: 56
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
#2 Print Post
Posted on 25-11-2021 09:06

Location: Soest, NL
Posts: 16657
Joined: 21.07.04

That is very unlikely / hardly possible. Check for Phorocera (genitalia highly distinctive)

Edited by Zeegers on 25-11-2021 09:06
Paul Hoekstra
#3 Print Post
Posted on 26-11-2021 22:21

Location: Netherlands
Posts: 56
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.

#4 Print Post
Posted on 27-11-2021 10:47

Location: Soest, NL
Posts: 16657
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.

Paul Hoekstra
#5 Print Post
Posted on 06-12-2021 22:39

Location: Netherlands
Posts: 56
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
#6 Print Post
Posted on 07-12-2021 11:23

Location: Soest, NL
Posts: 16657
Joined: 21.07.04

Yes, they do !

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08 December 2021 00:10


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23.09.21 15:29
All sorted.

16.09.21 22:24
Sorry put 5 new threads in Asilidae forum instead in Syrphidae forum, can pleas an admin move it to Syrph? THANKS, Norbert

09.09.21 07:48

09.09.21 07:47
wing ventation is totally different

03.09.21 12:51
Hi, what's the major difference between dolichopodidae and rhagionidae? Can someone help me? Thanks!

28.06.21 15:24
thx TO eklans

03.06.21 11:11
@Tony Irwin Thank you Tony! I've emailed you there Pfft

02.06.21 22:26
Rob - can you PM me with an e-mail address, and I'll send it over.

02.06.21 13:16
Hello chaps! Does anyone have a copy of: Revision of the willow catkin flies, genus Egle Robineau-Desvoidy (Diptera: Anthomyiidae), in Europe and neighbouring areas ?? I'd be ever so grateful! Rob

31.05.21 14:31
The part that got deleted is "longer, dark median stripe on thorax"

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