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Diptera.info :: Identification queries :: Diptera (adults)
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cecidomyiidae egg laying on dead wood
AWijker
#1 Print Post
Posted on 25-05-2025 09:54
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Location: Egmond aan Zee - The Netherlands
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 This rather large (about 5mm) Cecidomyiidae with white tarsomere was laying eggs on a dead trunc. There were several of them including a male. We've collected a male and a female.

Does someone know the species or literature to key the species?
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AWijker
#2 Print Post
Posted on 25-05-2025 09:54
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 from above
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AWijker
#3 Print Post
Posted on 25-05-2025 09:55
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 wing
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Tony Irwin
#4 Print Post
Posted on 25-05-2025 15:35
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 I think this is probably Winnertzia, based on the venation. I understand the larvae feed on fungi.
Tony
----------
Tony Irwin
 
AWijker
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Posted on 25-05-2025 15:59
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 Bases on wing venation and short first tarsomere plus biology it should be a Winnertziinae. From what I can find on the internet Winnertzia's are rather small. Maybe another genus from this subfamily?
 
John Carr
#6 Print Post
Posted on 25-05-2025 22:15
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 The best starting point is

Jaschhof, M. and C. Jaschhof. 2013. The Porricondylinae (Diptera: Cecidomyiidae) of Sweden with notes on extralimital species. Studia dipterologica Supplement 20.
 
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John Carr
#7 Print Post
Posted on 26-05-2025 15:35
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 According to Jaschhof and Jaschhof Winnertzia is smaller and never has white-tipped tarsi.
 
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Tony Irwin
23.06.25 18:10
If you have some spare money, there is a copy (together with keys to pupae and larvae) for sale by Hermann L. Strack, Loguivy Plougras, France

smol
23.06.25 11:18
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

Tony Irwin
19.06.25 15:33
I have the hard copy book, if you have any specific queries, but I'm not scanning the 500+ pages!

smol
02.06.25 18:26
Anyone has "Chironomidae of the Holarctic region. Keys and diagnoses. Part 3. Adult Males Entomologica Scandinavica Supplement 34"? smolwaarneming@gma
il.com

Nikita Vikhrev
28.05.25 20:57
I have Russian Coenosia. nikita6510@ya.ru

smol
28.05.25 12:25
Is someone able to share with me "A key to the Russian species of the genus Coenosia"?

Nikita Vikhrev
08.05.25 18:22
I have

rvanderweele
03.05.25 08:35
Does someone has a scan of Nartshuk E.P. 2003. Key to families of Diptera (Insecta) of the fauna of Russian and adjacent countries. Proceedings of the Zoological Institute Vol. 294: 1-252 for me?

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