Thread subject: Diptera.info :: weird wing venation in Rhamphomyia laevipes
Posted by rvanderweele on 15-11-2010 00:10
#1
In April 1999 I collected in Budapest a male Rhamphomyia laevipes. I know that sometimes you may find strange variations in the wing venation. But this male had a very weird "modification". There were 2 "cross veins" between the M1 and M2, the first one, of course, closing the discal cell. The second one was parallel to the first one at a small distance.
I never noticed it before. It is nevertheless not uncommon?
thanks,
Posted by Paul Beuk on 15-11-2010 10:25
#2
It happens frequently. Recently I have seen a empidine specimen that had it in both wings.
Posted by jonas on 29-01-2012 14:51
#3
Hi,
does it sometimes occur that crossvein (which closes the discal cell, Dm-cu) is lacking?
I have some flies here (Empidoidea I assume) without discal cell, with a cell br, bm and cel cup, and vein M1 and M2 separate. The wing venation resembles mostly Opetiidae (like this: http://www.drawwing.org/insect/opetia-wing)
Jonas
Posted by Paul Beuk on 30-01-2012 21:27
#4
There is
Rhamphomyia anomalipennis that can have an open discal cell but you might also have a lok at
Bicellaria.
Posted by rvanderweele on 30-01-2012 23:43
#5
I have a R. anomalipennis femaie in my collection. I collected it last year in the Eifel, Germany.
Posted by jonas on 31-01-2012 10:45
#6
Hi,
I tried to take pictures (with my girlfriends Ipod trough the binoc).. Don't expect much ;)
I assume the immense front legs are typical, but I cant find the species... I tried for family level, but I keep ending up with Hybotidae.
d2 by
Jonas Mortelmans, on Flickr
d3 by
Jonas Mortelmans, on Flickr
dipt1 by
Jonas Mortelmans, on Flickr
I found a second specimen, so the wing isn't an abberation ;)
Jonas
Posted by Paul Beuk on 31-01-2012 11:51
#8
You have
Phyllodromia melanocephala (Empidinae, Hemerodromiinae). :) I was thinking along the lines of Empidinae too much, did not realise it could have been Hemerodromiinae (or Tachydromiinae, for that matter). Had you mentioned the swollen fore femora, then it would have been easy. :P
Posted by jonas on 31-01-2012 11:56
#9
Yes!
I just found it myself accually (I have a male from another location, so it had to be common. It has truly gigantic genitalia, which makes it a bit easier). Nice one.
Thanks anyway.
Bye jonas
