3720/2 QNC outing.
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?
Not a great photo but I only had one chance and I haven't seen many beeflies for a while.
Photo Credit: Patrick Brown
A huge (body length ~3cm, abdomen ~1.5cm wide) fly with a metallic blue abdomen. Found desiccated in leaf litter