Thread subject: Diptera.info :: Coenia palustris ?

Posted by apusapus on 23-01-2024 19:37
#1
Hello,

I saw several of this Ephydridae walking on the water of ponds in a farm in southern France in last December.
French specialist suggest Coenia, maybe palustris, but this taxa seems not well known in France.

Thank you for your advice
Edited by apusapus on 23-01-2024 19:38

Posted by John Carr on 23-01-2024 20:10
#2
I don't know beyond subfamily Ephydrinae but I doubt Coenia s. str. Mathis (1975) distinguished Coenia with three pairs of dorsocentrals and no humeral bristles from Paracoenia with four pairs of dorsocentrals and well developed humeral bristles.

Posted by apusapus on 24-01-2024 12:26
#3
I have another picture here in any case wing nervation can be useful
https://www.galerie-insecte.org/galerie/view.php?ref=334972

Posted by Tony Irwin on 24-01-2024 17:59
#4
If I am interpreting the slightly fuzzy characters correctly, this looks more like Paracoenia fumosa