Diptera.info

Posted by Maherjos on 02-06-2020 12:28

Photograph taken on 2 June 2020, trap of light for moths placed in house of the urban center of Motril, Granada, Spain.
Immediate area of the Mediterranean coast.
Approximate size, no wings 7,5 mm.

Thanks in advance for any help!

Edited by Maherjos on 02-07-2020 18:54

Posted by John Carr on 02-06-2020 20:07

It might be Scenopinus glabrifrons, 1824 based on the revision by Kelsey (1969). But I don't trust his revision because too many photos don't run cleanly through the keys. Send some flies to Paul Beuk, especially males, and he might have a better idea.

Posted by Maherjos on 02-06-2020 23:10

John Carr wrote:
It might be Scenopinus glabrifrons, 1824 based on the revision by Kelsey (1969). But I don't trust his revision because too many photos don't run cleanly through the keys. Send some flies to Paul Beuk, especially males, and he might have a better idea.

I appreciate your detailed information.
I've only found the specimen from the photos shown, and I think it's female. But I will contact Paul Beuk, to see if he believes it is possible to specify the species with the specimen in hand.
Kind regards from southern Spain.
José Marín.

Posted by Paul Beuk on 05-06-2020 10:59

If you are willing to send it, I will have a look. Females are a tad more complicated than males, but we'll see where we end up. A few species have been described from the Iberian Peninsula after Kelsey (1969) so...

Posted by Maherjos on 05-06-2020 11:59

Paul Beuk wrote:
If you are willing to send it, I will have a look. Females are a tad more complicated than males, but we'll see where we end up. A few species have been described from the Iberian Peninsula after Kelsey (1969) so...

Thanks Paul. I send it by post.
Let's see if we are lucky.
Kind regards from southern Spain.
José Marín

Posted by Paul Beuk on 30-06-2020 20:10

Indeed, it is S. glabrifrons. I studied the 'books' during the last few weeks and the combination of shining frons, white halter knob and the imaginary line through cross vein dm-cu intercepting the costa distal of R₄ are characteristric of this species. Scenopinus fenestralis also can have clear wings and pale halter knob, but its frons is not shining and the legs, in particular the hind legs are dark(er).

Posted by Paul Beuk on 01-07-2020 07:44

#10

Sorry, I got my wires crossed. The character mentioned by Krievosheina (1981) about the imaginary line through cross vein dm-cu is actually the wrong. It should run distal of R₄. So the only characters pointing to glabrifrons are the frons the the halter knob.

Posted by Maherjos on 02-07-2020 19:03

#11

Paul Beuk wrote:
Indeed, it is S. glabrifrons. I studied the 'books' during the last few weeks and the combination of shining frons, white halter knob and the imaginary line through cross vein dm-cu intercepting the costa distal of R₄ are characteristric of this species. Scenopinus fenestralis also can have clear wings and pale halter knob, but its frons is not shining and the legs, in particular the hind legs are dark(er).

Paul Beuk wrote:
Sorry, I got my wires crossed. The character mentioned by Krievosheina (1981) about the imaginary line through cross vein dm-cu is actually the wrong. It should run distal of R₄. So the only characters pointing to glabrifrons are the frons the the halter knob.

My apologies Pablo, for not having responded to your posts before, but had not received notification of them.

From my limited knowledge to understand your detailed explanations, I have believed that this diptero is, S. glabrifrons, and so I have edited the title of the entry. If I got it wrong, please, tell me to correct it.

Very grateful for your attention and help in identification.
Kind regards, from the south of Spain,
José Marín.