Diptera.info

Posted by Dmitry Gavryushin on 15-09-2006 14:44

A single specimen was collected around 6 p.m. by sweeping on a rather unimpressive meadow with strong marks of cows pasture near water (actually it was a big ditch beside the railroad embankment).
Size approximately 3mm, unfortunately I lost it after taking some pictures.

Posted by Dmitry Gavryushin on 15-09-2006 14:45

A lateral view.

Posted by Nikita Vikhrev on 15-09-2006 22:06

Black showed me this fly two days ago.
My answer was - "I don't know, may be "Rohacek fly" = Anthomyzidae".
Rohacek answered that it is not.
Black send it as Opomyza. Jan keep silence.
What the hell family this fly belongs to???

Posted by Tony Irwin on 15-09-2006 22:22

Looks like Opomyza to me. Try O. nigriventris.

Posted by Dmitry Gavryushin on 16-09-2006 07:41

Thanks Nikita and Tony.

Posted by Jan Willem on 16-09-2006 11:44

Hi Black,

Sorry for not responding sooner! Let me say first that I agree with Tony, it must be Opomyza nigriventris. I have only once seen a specimen of this species, and that was 10 years ago. I can't remember very much about it anymore. I have searched for notes I took on this specimen, but besides the data on the labels I haven't been able to find any notes or drawings. Because I have been searching for more information, it took me some time before I responded. For as far as I know, this species is only know from Estonia, Finland, and Russia. Only very few specimens are known of this species! So I would say, please visit this location more often and try to find it again:D.
The bionomics of this species are still unknown.

And Nikita, I have to admit that this species does indeed look rather anthomyzid like. Besides, Anthomyzidae and Opomyzidae are sistergroups.

Jan Willem

Jan Willem

Edited by Jan Willem on 17-09-2006 09:37

Posted by Nikita Vikhrev on 16-09-2006 13:42

Dima, I'm very, very jelous!
Nikita
And please, use vacuum-cleaner on your kitchen to find escaped fly!

Posted by Dmitry Gavryushin on 16-09-2006 17:16

Many thanks for your confirmation Jan Willem - I'm impressed, going to visit that place tomorrow, maybe I'll have more luck with it ;) .
2 Nikita: sorry, my kitchen has undergone some minor renovations, and the women have swept the dust (almost) everywhere, and there's not too many places to hide, so it's apparently gone for good :( .

Posted by Nikita Vikhrev on 16-09-2006 21:48

One thing is for sure, Dima is author of unique photo of Opomyza nigriventris of the World!

Posted by Dmitry Gavryushin on 06-10-2006 13:44

#10

Extensive sweeping at this location on next week-end gave no results :(.