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Diptera.info :: Identification queries :: Diptera (adults)
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Culicinae (ID)
vmcaldart
#1 Print Post
Posted on 22-08-2014 01:32
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Location: Brazil
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Dear all,

Is it possible to separate Culex from Aedes based in differences in R2 and R2+3 length? I've read that in Culex the R2 is larger than the size of R2+3 (A and B in figure), and that in Aedes is the opposite (C and D in figure). My specimens are from southern Brazil, and as a herpetologist I'm just trying to have a first identification of genera... within Culicinae, my main interest is to diagnose Culex. Images are not at scale, ignore the values.

Thanks
vmcaldart attached the following image:


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Edited by vmcaldart on 22-08-2014 02:45
 
John Carr
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Posted on 22-08-2014 14:13
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Location: Massachusetts, USA
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The only mention of the R2+3 fork in keys I checked was to distinguish Uranotaenia from most other Culicinae.

In North America Aedes has a pointed abdomen and Culex a blunt-tipped abdomen, at least if live specimens are viewed laterally.
 
http://www.flickr.com/photos/31715949@N00
vmcaldart
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Posted on 22-08-2014 14:23
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Location: Brazil
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But in Uranotaenia the A1 vein ends before the union of CuA1 and CuA2... thats not the case of the specimens in the picture or other Culicinae.
 
John Carr
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Posted on 22-08-2014 14:30
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R2+3 begins where R4+5 forks off. Before that point the vein is simply Rs.
 
http://www.flickr.com/photos/31715949@N00
vmcaldart
#5 Print Post
Posted on 22-08-2014 14:42
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Location: Brazil
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I get it know, John. Thanks for your help.
 
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