Thread subject: Diptera.info :: Chironomidae > Psectrotanypus pictipennis (probably)

Posted by Raimo on 19-11-2017 21:08
#1

Perhaps Psectrotanypus varius?
Mid Sweden July 24 2017.

Edited by Raimo on 21-11-2017 21:53

Posted by Tony Irwin on 19-11-2017 21:51
#2

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.)

Posted by John Carr on 19-11-2017 23:41
#3

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.

Posted by Raimo on 20-11-2017 22:09
#4

Thanks for your input. So of the two Psectrotanypus in Sweden, varius more probable than pictipennis? No other genus, like Apsectrotanypus or simililar possible?

Posted by Tony Irwin on 21-11-2017 10:41
#5

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.

Posted by Raimo on 21-11-2017 21:53
#6

Thankyou Tony. Since dyari is not recorded in Sweden (found in Europe?), it aught to be pictipennis.

Posted by Tony Irwin on 22-11-2017 08:34
#7

Agreed, but it would be good to check... ;)