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Thank you Tony.
I do know this hairs on the notopleuron. As I wrote, fly isn't collected.
So, after: or absent, scutellum at least apicaly red, abdomen not yellow, 2 strong presutural ac, Zimin's key gives to possibility
1. ntpl bare, f - black - Ph. zugmayeriae
2. ntpl hairy, f-? - Ph. trimaculata,
I'll compare with musem material.
Nikita