On a regular basis empty cocoons can be found on and around the nest blocks of the bee hotel. The feather light cocoons are dropped from the exit as the emerging adult insect crawls out, or like in this case, judging by the small diameter of the two exit holes, the adult parasites that feasted on the main inhabitant, a mason bee Osmia sp..
Bee hotel
Osmia sp.
Last update: 21 May 2023