Diptera.info

Posted by Nikita Vikhrev on 14-07-2006 20:59

Moscow region, 14 july, 3-4mm

Posted by Jan Willem on 15-07-2006 10:21

Hi Nikita,

Geomyza yes; tripunctata no! This is a member of the "combinata group". Although Geomyza combinata is no longer in use as a species name, it is tempting to still call the species group "combinata group". My guess would be Geomyza hackmani, however it is difficult to be sure after a picture. Studying the genitalia would get you a positive identification. Please collect material like this! I am always very interesting in studying it!!

Jan Willem

Posted by Nikita Vikhrev on 15-07-2006 17:38

Thank you Jan.
1. Collected, labeled and wait for you...
2. Do you have any link with Geomysa key, in my there are not neither combinata, nor hackmani.
Nikita

Posted by Jan Willem on 15-07-2006 20:43

Hi Nikita,

GOOD that you collected the specimen:).

As far as I know there are no online keys to Opomyzidae, so sorry, no link. Are you sure that Geomyza combinata is not in your key? I can hardly imagine that! Literature to use:

Carles-Tolr?, M. 1993. Tri novych vida sem. Opomyzidae (Diptera) iz Ispanii [Three new species of the fam. Opomyzidae (Diptera) from Spain]. Entomologicheskoe Obozr?nie, 72(2): 410-413 (in Russian).

Carles-Tolr?, M., 1993c. A new species of Geomyza, with new acalyptrate records to the Iberian Peninsula (Diptera, Acalyptratae).? Historia Animalium 2: 49-55.

Drake, C. M. (1992): Two new species of Geomyza with notes on the combinata group (Diptera: Opomyzidae). - British Journal of Entomology and Natural History 5: 143-152; London.

Drake, C. M. (1993): A review of the British Opomyzidae (Diptera). - British Journal of Entomology and Natural History 6: 159-176; London.

Martinek, V., 1978a. The female of Opomyza thalhammeri and a new species of the genus Geomyza (Diptera, Opomyzidae).? Acta entomologica bohemoslovaca 75: 336-343.

Nartshuk, E.P., 1993a. Three new species of Geomyza from the Palaearctic Region (Diptera: Opomyzidae).? Zoosystematica Rossica 1: 142-144.

Zuijlen, J.W.A. van, 1999. Notes on the Fall?n collection of Opomyzidae (Diptera) in the Naturhistoriska Riksmuseet, Stockholm.?Studia dipterologica 6(1): 129-134.

Jan Willem

Edited by Jan Willem on 15-07-2006 20:51

Posted by Nikita Vikhrev on 15-07-2006 21:43

Realy, there is "combinata".
Realy, there isn't pteropleural seta. Sorry:(
Thank you for Literature, Jan.
Nikita

Posted by paqui on 17-07-2006 20:30

for any M Carles-Tolr? Hjorth Andersen articles, i can translate if you want (but from spanish! :))

Posted by Nikita Vikhrev on 17-07-2006 20:51

Thank you Paqui.