Thread subject: Diptera.info :: Lonchoptera sp. (perhaps tristis)] Lonchopteridae
Posted by Christine Devillers on 10-02-2010 20:17
#1
Is it possible to go to the genus ?
(3mm, Belgium, 8-2-2009)
Edited by Christine Devillers on 15-02-2010 20:19
Posted by Christine Devillers on 10-02-2010 20:17
#2
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Posted by Gunnar M Kvifte on 11-02-2010 08:41
#3
The only European genus of Lonchopteridae is
Lonchoptera.
Posted by Paul Beuk on 11-02-2010 09:23
#4
The pictures are rather blurry when it comes to seeing the smaller details but it appears as if there is no pd setae to the mid tibiae and there are no spines on R1. That would lead to a group of three species.
L. pictipennis has a spot in the wing, so that one is ruled out. I cannot discern more than one dorsal setae on the fore tibia, meaning it probably is not
L. strobli. That would leave us with
L. tristis but the curve in the mid tibia is not visible...
Posted by Mark-uk on 11-02-2010 16:22
#5
It is difficult to sex as I cant make out the anal vain on the wing, I think it may be a female?
the mid tibia curve in females is often difficult to see. in L. tristis the mid tibia is somewhat shorter than the femur, thus making the ratio of length the first mid tarsi to the mid tibia high. also 3mm is on the small side for L. tristis.
We really need sharper pictures or better still, a specimen.
:)
Posted by Christine Devillers on 11-02-2010 21:20
#6
Thanks for those explanations :)
I only have pictures, perhaps those ones could help for the shape of the mid tibia ?
Posted by Christine Devillers on 11-02-2010 21:21
#7
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