Subject: What is going on – two photos?
Location: Essex, UK
August 31, 2015 10:38 am
I photographed these at Thameside Nature Park on 30 August.
The fly appears to be sitting on a nest apparently containing tiny youngsters – and with a trapdoor at the end. Has the fly been caught and left as food for the youngsters? Is it eating them itself?
These is also this strange red thing which appears to be spinning itself a cacoon.
We believe this is a Tachinid Fly, a parasitoid, and we believe your image might have something to do with the adult Tachinid Fly emerging from its host insect. The other image might have something to do with fungus. This is all conjecture and we eagerly welcome any additional information.