THE COTTON-BEES AND RESIN-BEES

THERE are many Bees who, like the Leaf-cutters, do not make their own dwellings, but use shelters made by the work of others. Many of the Osmia-bees seize the old homes of the Masons; other honey-gatherers use earthworm galleries, snail-shells, dry brambles which have been made into hollow tubes by the mining Bees, and even the homes of the Digger Wasps burrowed in the sand. Among these borrowers are the Cotton-bees, who fill the reeds with cottony satchels, and the Resin-bees, who plug up snail-shells with gum and resin.