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Interesting question. Rudis has a very rare lookalike P. vagans.
Difference is easy on male genitalia, but otherwise difficult.
I dismissed this option based on the thoracic pattern in the first pic. The second pic shows strong darkening on anterior part of scutellum, a feature suggesting vagans.

So I need to look into this.
* Can you tell whether hairs on eye are darker on upper half ?
* Can you tell whether abdominal tergites have lateral discal bristles ?

Thanks

Theo