In this past summer, I was lucky enough to discover and observe quite a few Hymenopteran species living in and around the old house in north Athens.
Giant resin bee, Megachile sculpturalis (Hymenoptera: Megachilidae) Found at the back of the house.
Carrying resin
Sealed
Old photo from Illinois 2013
Location of the hole
Carrying resin
Mason wasp, Parancistrocerus fulvipes. Found on the outlet on the patio.
Final instar & adult
Adult
They made nest in the outlet holes
All from hole no.1
Can you see the larva?
Mason wasp Eumenes fraternus (suspected). Found outside my lab.
I opened it…
The nest on the wall
Pupa
Adult
One week after the first photo
He/she was released afterwards
Horace Zeng 