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View Thread :: Identification queries :: Diptera (adults)
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Chironomidae > Psectrotanypus pictipennis (probably)
#1 Print Post
Posted on 19-11-2017 21:08

Location: Karlstad, Sweden
Posts: 688
Joined: 10.11.13

Perhaps Psectrotanypus varius?
Mid Sweden July 24 2017.
Raimo attached the following image:

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
Posts: 5174
Joined: 19.11.04

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 Irwin
John Carr
#3 Print Post
Posted on 19-11-2017 23:41
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Location: Massachusetts, USA
Posts: 5921
Joined: 22.10.10

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.
#4 Print Post
Posted on 20-11-2017 22:09

Location: Karlstad, Sweden
Posts: 688
Joined: 10.11.13

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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Location: Norwich, England
Posts: 5174
Joined: 19.11.04

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 Irwin
#6 Print Post
Posted on 21-11-2017 21:53

Location: Karlstad, Sweden
Posts: 688
Joined: 10.11.13

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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Location: Norwich, England
Posts: 5174
Joined: 19.11.04

Agreed, but it would be good to check... Wink
Tony Irwin
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