Complaintdesk replied to Biggest... bees...ever. January 14, 2022 @ 5:51:18 pm PST
They are no doubt related to Wallace's Giant Bees, which have a wingspan of 2.5 inches and are as large as your thumb. https://www.cbc.ca/news/science/wallaces-giant-bee-1.4673474
6:13 am, January 15, 2022