To glue the whole thing together does not enter into the Resin-bee's scheme.
"Bramble-bees and Others" by J. Henri Fabre
Propolis: a glue or resin-like product elaborated by bees to serve as a cement in cases where wax is not sufficiently tenacious.
"Explanation of Terms Used in Entomology" by John. B. Smith
Now the miller enters the hive and makes an incision into the bee-glue, or cement, with her sting, and leaves her eggs.
"A Manual or an Easy Method of Managing Bees" by John M. Weeks