Diptera.info :: Identification queries :: Diptera (adults)
 cecidomyiidae egg laying on dead wood
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| AWijker |
Posted on 25-05-2025 09:54
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 Member Location: Egmond aan Zee - The Netherlands Posts: 19 Joined: 21.03.07 |
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? AWijker attached the following image:  [229.5Kb] |
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| AWijker |
Posted on 25-05-2025 09:54
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Member Location: Egmond aan Zee - The Netherlands Posts: 19 Joined: 21.03.07 |
from above
AWijker attached the following image:  [218.42Kb] |
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| AWijker |
Posted on 25-05-2025 09:55
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Member Location: Egmond aan Zee - The Netherlands Posts: 19 Joined: 21.03.07 |
wing
AWijker attached the following image:  [132.62Kb] |
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| Tony Irwin |
Posted on 25-05-2025 15:35
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 Member Location: Norwich, England Posts: 7287 Joined: 19.11.04 |
I think this is probably Winnertzia, based on the venation. I understand the larvae feed on fungi.
Tony ---------- Tony Irwin |
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| AWijker |
Posted on 25-05-2025 15:59
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Member Location: Egmond aan Zee - The Netherlands Posts: 19 Joined: 21.03.07 |
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? |
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| John Carr |
Posted on 25-05-2025 22:15
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 Super Administrator Location: Massachusetts, USA Posts: 10424 Joined: 22.10.10 |
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 |
Posted on 26-05-2025 15:35
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Super Administrator Location: Massachusetts, USA Posts: 10424 Joined: 22.10.10 |
According to Jaschhof and Jaschhof Winnertzia is smaller and never has white-tipped tarsi. |
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