Thread subject: Diptera.info :: [Phaonia tuguriorum / Phaonia scutellata] Phaonia tuguriorum ?

Posted by JC_Bartolucci on 02-05-2026 13:28
#1
Hello,

I am leaning towards Phaonia tuguriorum ♀ for this specimen. What do you think?

www.galerie-insecte.org/galerie/image/dos372/big/P8180890_modif.JPG
JC Bartolucci : France : La Bresse : 88250 : 18/08/2025
Altitude : NR - Taille : 8 mm
Réf. : 372223

Thank you in advance.

JC
Edited by JC_Bartolucci on 07-05-2026 09:03

Posted by eklans on 03-05-2026 09:20
#2
Your image does not exclude P. scutellata.

Posted by JC_Bartolucci on 03-05-2026 10:29
#3
Thank you for your reply.

I read that, for Phaonia scutellata, the ratio between the interocular distance and the head width is about 1/3. The angle of the photo may not be ideal for this kind of measurement, but I obtain 0.432.

It also seems that P. scutellata is a rare species in our region.

Would you recommend leaving it as Phaonia sp., or could it be treated as Phaonia tuguriorum probable?

Posted by eklans on 03-05-2026 13:07
#4
I would file it as Phaonia sp. (the 1/3 rule is unknown to me).