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Diptera.info :: Identification queries :: Diptera (adults)
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Nematocera (yellow-black and white) - Cricotopus tricinctus or trifasciatus
ebbek
#1 Print Post
Posted on 27-06-2023 17:45
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Location: SW Sweden, Halland
Posts: 1447
Joined: 23.06.08

 Any ideas about this nice nematocera? From a light-trap in SW Sweden 20 june.

Regards

Krister
ebbek attached the following image:


[293.77Kb]
Edited by ebbek on 28-06-2023 11:33
 
kuv
#2 Print Post
Posted on 27-06-2023 20:03
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Location: Schenefeld near Hamburg
Posts: 3793
Joined: 30.04.10

 Look to me like Cricotopus tricinctus (Chironomidae), female - but I'm not an expert.
Greetings Kuv
 
ebbek
#3 Print Post
Posted on 27-06-2023 20:14
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Location: SW Sweden, Halland
Posts: 1447
Joined: 23.06.08

 Thanks a lot - Cricotopus seems to be a good choice! But maybe it is C. trifasciatus instead?

Grettings

Krister
 
John Carr
#4 Print Post
Posted on 27-06-2023 22:49
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ebbek wrote:
Thanks a lot - Cricotopus seems to be a good choice! But maybe it is C. trifasciatus instead?

Grettings

Krister


Hirvenoja (1973) separated the species:

Der Raum zwischen den Lmb hell; wenn Tergit IV pigmentiert ist, befindet sich die Pigmentierung der Gegend der analmedianen Muskelmale ... trifasciatus

Prsc oder der ganze Raum zwischen den Lmb dunkel, er ganz hell; wenn Tergit IV pigmentiert ist, befindet sich die Pigmentierung wenigstens in Oralecken des Tergits ... speciosus, tricinctus

Lmb: "laterale Mesonotalbinden"

Prsc: "Auf dem anterioren Scutum wird der Raum vor dem Scutellum, der oft stärker pigmentiert ist, von Strenzke (1959) als praescutellares Dreieck (Prsc) bezeichnet."
 
http://www.flickr.com/photos/31715949@N00
ebbek
#5 Print Post
Posted on 28-06-2023 11:32
Member

Location: SW Sweden, Halland
Posts: 1447
Joined: 23.06.08

 Thanks! Seems to be a bit tricky, but I will look clooser on it later.

Regards

Krister
 
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Appreciate it, Tony Irwin! I got the hint to use the key next to Langton and Pinder key for females of Chironomidae. So no specific queries, except the keys... I will keep this on my list and hope th

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