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Diptera.info :: Identification queries :: Diptera (adults)
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Spectacular cranefly: Dictenidia or Ctenophora?
nick upton
#1 Print Post
Posted on 11-06-2010 17:30
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Location: Wiltshire, UK
Posts: 828
Joined: 12.03.10

Can anyone say if this big, showy female Tipulid is Dictenidia bimaculata or Ctenophora elegans, or something similar. Abdominal markings look more like the former, head marking more like latter, but no doubt the wing veins / marks are more definitive and I don't have a key. Both of these are quite scarce in the UK I believe, but it could be something else!.

c18mm Wiltshire garden 11.6.10
nick upton attached the following image:


[157.46Kb]
Edited by nick upton on 11-06-2010 17:33
Nick Upton - naturalist and photographer
 
nick upton
#2 Print Post
Posted on 11-06-2010 17:32
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Location: Wiltshire, UK
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more in profile:
nick upton attached the following image:


[123.69Kb]
Edited by nick upton on 11-06-2010 17:33
Nick Upton - naturalist and photographer
 
oxycera
#3 Print Post
Posted on 11-06-2010 19:58
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Location: Barnsley, South Yorkshire
Posts: 251
Joined: 31.12.09

Looks just like one I photographed a few days ago (see barnsleywildlife). Ctenophora pectinicornis.
 
nick upton
#4 Print Post
Posted on 11-06-2010 20:17
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Location: Wiltshire, UK
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Joined: 12.03.10

OK, many thanks. Yes, sorry, I meant to put C. pectinicornis not elegans as one of my options and have read since that D. bimaculata has 2 black spots on the wings (as its name suggests) so C. pectinicornis looks right unless anyone says not! Seems to considered widespread but scarce in the UK, associated with dead wood eg beech. We have a huge beech tree nearby...
Nick Upton - naturalist and photographer
 
oxycera
#5 Print Post
Posted on 11-06-2010 22:17
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Location: Barnsley, South Yorkshire
Posts: 251
Joined: 31.12.09

NickU wrote:
so C. pectinicornis looks right unless anyone says not!




Depends who says it!
 
nick upton
#6 Print Post
Posted on 13-06-2010 21:36
Member

Location: Wiltshire, UK
Posts: 828
Joined: 12.03.10

Very true... All replies are welcome (well usually anyway...) but some are more definitive than others!
Nick Upton - naturalist and photographer
 
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