Thread subject: Diptera.info :: 5009338 Compsobata sp?

Posted by robirdman on 24-08-2005 17:24
#1
I'd sure like a species on this.
5009338 ORANGE STILT LEGGED FLY Compsobata sp mtg pr Geneva, Il 6-23-2005
www.diptera.info/forim/5-0640-1.jpg

Posted by Paul Beuk on 24-08-2005 19:14
#2
I am not familiar with the North American fauna, but I can tell at least that it is a species of the Calobata genera complex. In Europe, Compsobata has been synonymised with Neria and the distinguishing character with the other genera is in the wing venation. This picture does not show that detail clearly enough.

Posted by robirdman on 24-08-2005 21:35
#3
Here is a closer view of head and wings, if that helps.
www.diptera.info/forim/5-0640-2.jpg

Posted by Paul Beuk on 24-08-2005 22:10
#4
It is not quite just it, even though you amaze me again with the pictures you have. The character is on the anterior margin of the wing and how tow veins terminate in the costa. Unfortunately, the wing is turned slightly forward so the you just cannot see it. It appears as if the willterminate close to the wing margin and then it would be Neria (= Compsobata). According to the Manual of Neartcic Diptera, the subgenus Compsobata (Compsobata) has two reddish species with pruinose thorax, mostly northward and quite widespread. So that would fit quite nicely.