In schoenherri the grey ocellar plate is extended in a narrow triangle almost to the antenna base.

[2][3] The females lay eggs on the shells of Succineidae including Succinea putris.

[4] P. schoenherri is a very common and widespread species with a very long flight period.

It flies mainly from April to October, but in most European countries, it occurs all year round and in a very wide variety of both dry and moist habitats.

This article related to members of the muscomorph flies superfamily Sciomyzoidea is a stub.