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Diptera.info :: Identification queries :: Diptera (adults)
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Chironomidae > Psectrotanypus pictipennis (probably)
Raimo
#1 Print Post
Posted on 19-11-2017 21:08
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Location: Karlstad, Sweden
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Perhaps Psectrotanypus varius?
Mid Sweden July 24 2017.
Raimo attached the following image:


[225.16Kb]
Edited by Raimo on 21-11-2017 21:53
 
Tony Irwin
#2 Print Post
Posted on 19-11-2017 21:51
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Location: Norwich, England
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This doesn't quite fit varius - more like the Nearctic dyari. Could this be pictipennis? (I have no reference for this species, which does occur in Sweden.)
Tony
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Tony Irwin
 
John Carr
#3 Print Post
Posted on 19-11-2017 23:41
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The wing of Psectrotanypus pictipennis is mostly brown with pale spots, according to Roback, and the scutellum is dark orange-brown. I have not seen the species.
 
http://www.flickr.com/photos/31715949@N00
Raimo
#4 Print Post
Posted on 20-11-2017 22:09
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Location: Karlstad, Sweden
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Thanks for your input. So of the two Psectrotanypus in Sweden, varius more probable than pictipennis? No other genus, like Apsectrotanypus or simililar possible?
 
Tony Irwin
#5 Print Post
Posted on 21-11-2017 10:41
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This appears to me to be more like Psectrotanypus, but not varius - it does vary a bit, but not this much. If this is not pictipennis, then I would say it is likely to be dyari. Ideally you would capture a male, so that the genitalia characters can be checked. The wing pattern should be very similar in both sexes.
Tony
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Tony Irwin
 
Raimo
#6 Print Post
Posted on 21-11-2017 21:53
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Location: Karlstad, Sweden
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Thankyou Tony. Since dyari is not recorded in Sweden (found in Europe?), it aught to be pictipennis.
 
Tony Irwin
#7 Print Post
Posted on 22-11-2017 08:34
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Agreed, but it would be good to check... Wink
Tony
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Tony Irwin
 
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20.11.17 15:09
Pls sign to help save Botanophila fonsecai https://home.38deg
rees.org.uk/?s=Fon
seca. Thx

17.11.17 14:22
Thanks Paul, interesting point

16.11.17 13:44
'Holding' might not be the perfect description. Apparently the armature makes contact with sensitive places on the female, coaxing her to agree to mate.

16.11.17 13:43
Is was not quite sure whether the word would apply correctly, but, yes, that is okay.

15.11.17 11:29
How about armature, would that fit? based on http://onlinelibra
ry.wiley.com/doi/1
0.1111/j.1365-3113
.2008.00422.x/pdf
it would seem that these spines etc are used to hold the female!

14.11.17 09:22
All spines, ridges, lobes, etc. on the femur.

14.11.17 08:36
I think bewaffnung is like weapons (on femur 1).

13.11.17 13:10
Hello can any1 tell me how to translate bewaffnung des femur 1? Thx

26.10.17 13:37
Yes it looks like a typo error e instead of a Thanks you

26.10.17 09:54

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