Diptera.info :: Identification queries :: Diptera (adults)
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 Orthocladiinae (or Chironomini)?
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| Lennart Bendixen |
Posted on 14-03-2017 20:45
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Member Location: Northern Germany Posts: 1171 Joined: 19.12.14 |
Looks like basitarsus 1 was a little bit shorter than tibia 1. So this would turn out to be Orthocladiinae...correct? If not, this would be Chironomini...there are said to be some genera with shortened basitarsus. Who can help? Length about 2 mm. 2016-05-12, northern Germany, Mohrkirch, garden Lennart Bendixen attached the following image:  [292.68Kb] |
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| Lennart Bendixen |
Posted on 16-03-2017 05:49
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Member Location: Northern Germany Posts: 1171 Joined: 19.12.14 |
I add the pictures of another specimen - I've found several of them in May (and a few in Aug / Sep) at the same site. To me it's the same riddle with every specimen, they all seem to have the first tarsomere about as long as tibia 1. Who can clear this up? About 1,7 mm. 2016-05-13, same place. Lennart Bendixen attached the following image:  [298.83Kb] |
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| Lennart Bendixen |
Posted on 23-03-2017 07:48
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Member Location: Northern Germany Posts: 1171 Joined: 19.12.14 |
Another specimen, 2016-05-05, same place Maybe one day someone will get it 
Lennart Bendixen attached the following image:  [286.99Kb] |
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| John Carr |
Posted on 23-03-2017 11:50
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 Member Location: Massachusetts, USA Posts: 9845 Joined: 22.10.10 |
I will vote for Orthocladiinae based on the small eyes and fore tibial spurs. There is also Pseudochironomus (Chironominae, Pseudochironomini) matching this description, but your only species is a different color. |
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| Lennart Bendixen |
Posted on 23-03-2017 21:07
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Member Location: Northern Germany Posts: 1171 Joined: 19.12.14 |
Ok, thanks a lot! If there's any part of the body you need better photos of, please let me know. I'm sure there will be some of them this year as well. |
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| John Carr |
Posted on 23-03-2017 21:20
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Member Location: Massachusetts, USA Posts: 9845 Joined: 22.10.10 |
Male genitalia are much different between subfamilies. Chironominae have gonostylus fused to gonocoxite and parallel with body axis. Other subfamilies have gonostylus flexible and normally folded inward.
Edited by John Carr on 23-03-2017 21:20 |
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| Lennart Bendixen |
Posted on 23-03-2017 21:35
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Member Location: Northern Germany Posts: 1171 Joined: 19.12.14 |
If there are any males....maybe they look completely different to the females, because I didn't recognise any orange male, or one being that difficult to put in a subfamily. |
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| John Carr |
Posted on 23-03-2017 22:39
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Member Location: Massachusetts, USA Posts: 9845 Joined: 22.10.10 |
Yellow female Orthocladiinae often pair with black males.
Edited by John Carr on 23-03-2017 22:39 |
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