Solitary bee frass

Collected by David Katosic, 16 March 2017. Apple Valley Estates, coming from behind exterior window trim.

Then, on 17 April 2017, David Katosic retrieved samples from within the window casing, and it was quite interesting. See below, IN THE NEST.

IN THE NEST

The nest was accessed. It appears we have  solitary bee nest. The interior of the nest itself had a mixture of pollen, larval frass, minerals used to construct the nest, and mites. We videoed the mites, and the link is at the bottom of this post.

This appears to be a pupa

mite

pupa with what we think are larval frass attached