My trip to the Beelab/Museum was a dud - no one there. I had e-mailed ahead of time, but didn't get a response until AFTER I had got home. Oh well, maybe next time. Here what they sent me:
The bee museum has no regular days or hours that it is open. When someone is interested in touring the museum, they usually coordinate a day and time with us. There is no admission charge at this time.