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Hello,

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Pierre Duhem : France : Paris : 75018 : 22/10/2023
Altitude : 70 m - Taille : 5-6 mm
Réf. : 333439

I could not find a match in the family Agromyzidae (my first choice) and somebody suggested to search in the family Chloropidae, but without result.
Can somebody give me an orientation?
Thanks in advance.

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Hello Pierre, I think Agromyzidae is a good choice - I found copulating Phytomyza krygeri on the flowers of Aquilegia and they resemble yours. Maybe the flower (Crepis?) could help?

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Thanks.
The flower was indeed a Crepis: a bud, not yet opened.

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Phytoliriomyza nigrifrons could be a possibility. This species is only known from female material. See my images of a female on my website;

https://agromyzidae.myspecies.info/taxonomy/term/514

If you were to see these again, please do try to collect some and I would be happy to look at them.

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Thanks also for this proposition.

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Phytoliriomyza nigrifrons (Hendel, 1920), Agromyzidae. "Barry's" identification is correct. A rare species described from Croatia, known from the Canary Islands, Azores, and UK. One of the few Agromyzidae with distinct sexual colour dimorphism as first time to be seen on the photo. Slightly elongate shape of 3rd antennal segment is typical for many Phytoliriomyza spp. Scutum (=mesonotum) black until edge of scutellum. Male genitalia are not yet figured as males are absent in collections. Further link: https://www.galerie-insecte.org/galerie/view.php?ref=333439 .

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Thanks a lot.