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View Thread :: Identification queries :: Diptera (adults)
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male Muscid - Helina pertusa?
#1 Print Post
Posted on 16-10-2018 01:04
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Location: Berlin, Germany
Posts: 3170
Joined: 28.07.07

On the 10th of March, 2017, I found this male sitting on the windowsill of our staircase. Utilizing the threads https://diptera.i...d_id=38795 and https://diptera.i...d_id=58433 as well as the keys by D'Assis Fonseca and Zimin & Elberg in Bei-Bienko I arrived at Helina pertusa.
Sundew attached the following image:

#2 Print Post
Posted on 16-10-2018 01:06
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Location: Berlin, Germany
Posts: 3170
Joined: 28.07.07

Did I interpret the decisive characters correctly? Many thanks for confirmation or correction; Muscidae is still a difficult field for me...
Sundew attached the following image:

#3 Print Post
Posted on 16-10-2018 10:29
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Location: Berlin, Germany
Posts: 1434
Joined: 15.10.16

Hello Sundew,

I think that your determination is correct. Everything matches well with H. pertusa. I have both male and female specimens for consultation. The arista seem to be pubescent, which also matches H. pertusa. The row of dense hairs on the hind femur is diagnostic with this species. Helina can be quite variable, so mastering this genus is very difficult. I think that Muscidae are difficult for everyone but you do well with them.

I don't know if you collect specimens but i'll attach a photo of mine which depicts the male genitalia of H. pertusa in dorsal and lateral view.

maybe Nikita will confirm it for you if you wish to have the opinion specialist. I don't know when Stephane will return.

Best wishes,
johnes81 attached the following image:

Edited by johnes81 on 16-10-2018 10:29
John and Nini. Naturalists not experts.
#4 Print Post
Posted on 17-10-2018 12:36
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Location: Berlin, Germany
Posts: 3170
Joined: 28.07.07

So let us assume that Nikita's silence means consent!
The row of dense hairs on the hind femur is diagnostic with this species.
This is true for the males only - their beard is on the hind leg (strange fashion!) Wink
Thanks for supplying a pic of the genitals and the comments.
Best regards, Sundew
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Date and time
16 November 2018 23:30


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13.11.18 12:49
Hello Can any1 give me a contact email for Entomologie heute Thx

11.11.18 18:28
I don't have it, sorry

11.11.18 12:51
@Rafael_Carbonell What I would like is a pdf copy of Key to the Families of Diptera.

10.11.18 19:29
@Gordon, what exactly do you need? All the Oosterbroek literature is here:

09.11.18 15:56
Does anybody have a PDF of Oosterbroek they could email me? I had one but it didn't make it to Cambodia.

25.10.18 12:03
Da mayfly man is in da house!

18.10.18 09:12
@PaulBeuk Thanks ever so much Paul! I really appreciate it!

16.10.18 11:11
... - British Journal of Entomology and Natural History 11(3/4) (1998): 139-148.

16.10.18 11:10
@Gnats2meetu: Dobson, J.R., 1999. A ’bee-louse’ Braula schmitzi Örosi-Pál (Diptera: Braulidae) new to the British Isles, and the status of Braula spp. in England and Wales. - ...

15.10.18 14:33
Thx Paul

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