I checked out the compost bin through binoculars yesterday and decided the bees seemed more at home than you would expect for insects after fermenting mango bits. Last night I lifted the lid and could see by the light of the moon a small mass of the insects huddled in one corner. I shot in a blast of Mortein Fast Knockdown and ran. This morning there is a pile of dead bees in one corner. Hanging above them was the honeycomb. It's about as big as my hand, has cells on both sides and is maybe 1cm thick. If I hold it up to the light I can see the floors of the cells on this side are supported by the 3-way intersection of the walls on the other side. Clever bees!
But my compost bin is not for you. There are too many kids in this area.