<10mm long, they could see us and kept trying to hide by moving around the other side of the pole - didn't fly away, which was handy for photos.
Found as a pupa in a mud wasp nest with a squished wasp larva or pupa, nest was inside a tree hollow
Adult emerged 3 Oct 2021
the nest is from a Delta bicinctum, and all the other chambers hatched successfully except for this one. This morning I noticed the head of this insect coming out of the failed chamber. Could it be that one of the grubs that was put into the chamber was already parasitised by a different species?
Lenophila sp.
Identified as Lenophila on Bowerbird by Tony D.
Not a great photo but I only had one chance and I haven't seen many beeflies for a while.