Thread subject: Diptera.info :: 2v Geomyza

Posted by Nikita Vikhrev on 26-08-2006 20:00
#1

Moscow region, 26 aug.
Meeting of this two Geomyza hadn't a copula as result, which isn't at all their usual habite.
Is it because they belong to different species?

Posted by Jan Willem on 27-08-2006 11:56
#2

Please add the picture!:)

Jan Willem

Edited by Jan Willem on 27-08-2006 11:56

Posted by Nikita Vikhrev on 27-08-2006 13:12
#3

image

Posted by Jan Willem on 27-08-2006 16:37
#4

Hi Nikita,

Both specimens belong to the "combinata group", which means that to get a positive identification, you need to study the genitalia. If I have to guess the identity of both specimens I would say that the first one is a female of Geomyza balachowskyi. The second one is a bit difficult to judge, it could also be a female (which would be one of the reasons there was no copulation :D. Again if I would have to guess, I would say it is probably a specimen of Geomyza hackmani. So, yes, I think the two specimens belong to different species, but it is difficult to give a positive identification after a picture.

Jan Willem

Posted by Nikita Vikhrev on 27-08-2006 17:49
#5

So, yes, I think the two specimens belong to different species, but it is difficult to give a positive identification after a picture.
Thank you Jan.
I forgot to write that second fly is 1,5 less, as it is visible on images.