Thread subject: Diptera.info :: Gymnosoma sp.

Posted by thiery on 28-06-2023 17:23
#1

Hello,

Saint-Chamas (France - Bouches-du-Rhône)
Le 7/06/2023
Size : 8,0 mm.

Using Tschorsnig's key to Gymnosoma (examination with Binoculars if necessary), I obtain: 1'/2/3'/4' (appendix of the narrow syncerci, which seems discernible on the 3rd photo)/5 ---> Gymnosoma rotundatum.

What do you think?
Thanks for your comments.
Thiery


www.galerie-insecte.org/galerie/image/dos324/big/Photo%205845a%201.jpg
thiery : France : Saint-Chamas : 13250 : 07/06/2023
Altitude : 2 m - Taille : 8,0 mm.
Réf. : 324884


www.galerie-insecte.org/galerie/image/dos324/big/Photo%205845c%201.jpg
thiery : France : Saint-Chamas : 13250 : 07/06/2023
Altitude : 2 m - Taille : 8,0 mm.
Réf. : 324885


www.galerie-insecte.org/galerie/image/dos324/big/Photo%205845d%201.jpg
thiery : France : Saint-Chamas : 13250 : 07/06/2023
Altitude : 2 m - Taille : 8,0 mm.
Réf. : 324886

Posted by Zeegers on 28-06-2023 17:31
#2

It is, indeed, either rotundatum or nudifrons.

Theo

Posted by thiery on 28-06-2023 18:40
#3

Merci Theo