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Hello,
This fly was found in the Pyrenees at an altitude of 1,500 meters.
Should it be Periscepsia carbonaria or Kirbya moerens?
I'm leaning toward the former because :
- Periscepsia's third antennal segment is larger than Kirby's one
- it has a pair of post-sutural ac setae, which I believe Kirbya doesn't have?


ANDRE LABETAA : France : Counozouls : 11140 : 07/06/2025
Altitude : 1509 m - Taille : 6-7 mm ?
Réf. : 363175

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Periscepsia carbonaria is correct, I think (Kirbya moerens is an early spring species).

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Thanks a lot Eric !