Diptera.info

Posted by omattelart on 26-12-2011 14:34

This one has been taken close to the lake of Louvain-la-neuve, the 09 September 2011. Perhaps you have an idea?

Olivier

Edited by omattelart on 04-04-2012 09:24

Posted by John Carr on 26-12-2011 16:37

Female Ablabesmyia, possibly A. (Karelia). Roback (1971:362) wrote that he had seen a European species resembling A. (K.) peleensis. As far as I know nobody has put a name on any European species in that subgenus.

I'm speculating about subgenus based on wing spot pattern. That works in North America but the "real" distinction between subgenera is in the shape of a small bristle on the male sex organ.

Posted by Paul Beuk on 26-12-2011 16:53

Fauna Europaea treats Karelia as a synonym of Ablabesmyia, rather than as a subgenus. It lists six species from Europe:
Ablabesmyia (Ablabesmyia) aspera (Roback 1959)
Ablabesmyia (Ablabesmyia) dusoleili Goetghebuer 1935
Ablabesmyia (Ablabesmyia) longistyla Fittkau 1962
Ablabesmyia (Ablabesmyia) mallochi (Walley 1925)
Ablabesmyia (Ablabesmyia) monilis (Linnaeus 1758)
Ablabesmyia (Ablabesmyia) phatta (Egger 1864)

Posted by John Carr on 26-12-2011 17:11

I believe the division into subgenera is generally accepted. They are recognized in the guide to Holarctic Tanypodinae by Murray and Fittkau (1989), who describe Ablabesmyia (Karelia) as Holarctic.

The species in Fauna Europeae are all Ablabesmyia s. str. if you divide the genus into subgenera. Three of them are explicitly listed as such by Roback and he wrote that none of the species in the revision of Fittkau (1962) belonged to his new subgenus Karelia.