Uncommon resident.
Larvae in nestboxes and the nests of hole nesting birds.
Flies June to August.
Probany quite widespread but under—recorded because rarely seen except In nestbox material.

	Determination by Genitalia Examination (gen. det.) Required

Recorded in 13 (9%) of 140 10k Squares.
First Recorded in 1970.
Last Recorded in 2020.
(Data up to end 2023)