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Diptera.info :: Miscellaneous :: General queries
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weird wing venation in Rhamphomyia laevipes
rvanderweele
#1 Print Post
Posted on 14-11-2010 23:10
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Location: Zoelmond, the Netherlands
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Joined: 01.11.06

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,
ruud van der weele
rvanderweele@gmail.com
 
Paul Beuk
#2 Print Post
Posted on 15-11-2010 09:25
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It happens frequently. Recently I have seen a empidine specimen that had it in both wings.
Paul

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jonas
#3 Print Post
Posted on 29-01-2012 13:51
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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
 
Paul Beuk
#4 Print Post
Posted on 30-01-2012 20:27
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There is Rhamphomyia anomalipennis that can have an open discal cell but you might also have a lok at Bicellaria.
Paul

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rvanderweele
#5 Print Post
Posted on 30-01-2012 22:43
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Location: Zoelmond, the Netherlands
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I have a R. anomalipennis femaie in my collection. I collected it last year in the Eifel, Germany.
ruud van der weele
rvanderweele@gmail.com
 
jonas
#6 Print Post
Posted on 31-01-2012 09:45
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Hi,
I tried to take pictures (with my girlfriends Ipod trough the binoc).. Don't expect much Wink

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.

farm8.staticflickr.com/7165/6794577065_38751d6c5b_b.jpg
d2 by Jonas Mortelmans, on Flickr

farm8.staticflickr.com/7170/6794577223_b6dfec1a63_b.jpg
d3 by Jonas Mortelmans, on Flickr

farm8.staticflickr.com/7173/6794576857_8354d3151e_b.jpg
dipt1 by Jonas Mortelmans, on Flickr

I found a second specimen, so the wing isn't an abberation Wink

Jonas
 
jonas
#7 Print Post
Posted on 31-01-2012 09:51
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I'm getting good at this :-)

farm8.staticflickr.com/7150/6794602613_c20589e016_b.jpg
IMG_0065 by Jonas Mortelmans, on Flickr
 
Paul Beuk
#8 Print Post
Posted on 31-01-2012 10:51
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You have Phyllodromia melanocephala (Empidinae, Hemerodromiinae). Smile 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. Pfft
Paul

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jonas
#9 Print Post
Posted on 31-01-2012 10:56
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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
 
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