Thread subject: Diptera.info :: Pallopteridae, Palloptera usta (Toxoneura usta) northern Norway
Posted by Geir79 on 30-09-2011 14:06
#1
Looks like a Palloptera sp. to me. Possible to confirm family/genus or identify it to species?
Photographed 30.09.2011 in northern Norway (outside my apartment). Size approx. 4 mm.
Edited by Geir79 on 30-09-2011 23:25
Posted by Geir79 on 30-09-2011 14:07
#2
Second:
Posted by Geir79 on 30-09-2011 14:07
#3
Third:
Posted by Paul Beuk on 30-09-2011 17:08
#4
Palloptera usta, I think
Posted by Geir79 on 30-09-2011 17:39
#5
Thanks.
Think it looks like this species too, but it is not on the Norwegian species list for Pallopteridae (have checked this)
Can it be confirmed in any way? Should not be problematic to find another one (it was right outside my apartment..)
Posted by Jan Willem on 30-09-2011 22:20
#6
I agree with Paul. This is
Palloptera usta (or
Toxoneura usta). According to Fauna Europaea (www.faunaeur.org) it is known from Norway.
Edited by Jan Willem on 30-09-2011 22:21
Posted by Geir79 on 30-09-2011 23:23
#7
Yes, thank you very much. It is listed as Toxoneura usta in the Norwegian species list, that's why I did not find it!
Posted by Paul Beuk on 03-10-2011 10:27
#8
I still have difficulty in accepting other generic names in Pallopteridae as used in the present classification on Fauna Europaea. As far as I know, at least some of the characters in chaetotaxy used to divide genera are subject to interspecific variation within some genera. Wing patterns (for what these are worth, of course) would lead to a completely different generic division. Can anyone confirm whether the present division is also supported by, for example, consistent differences in structures of the male genitalia?
Posted by libor on 03-10-2011 10:47
#9
Mesopleuron (= anepisternum) bare: Palloptera s.str. Mesopleuron with hairs or setae close to hind margin: Toxoneura (+ Temnosira in some authors).
Libor
Posted by Paul Beuk on 03-10-2011 11:33
#10
My point: Within, for example,
Pherbellia that is used to distinguish between groups of species. Why should it here be used to separate geenra while some species in two different genera then resemble each other more closely than species in the same genus? Are there other characters that, perhaps, are not used in the keys because they are impratcial in the key. For example male genitalia?