webworm: several gregarious moth larvae that spin webs over foliage on which they feed
caterpillar: a wormlike and often brightly colored and hairy or spiny larva of a butterfly or moth
old maid: a card game using a pack of cards from which one queen has been removed; players match cards and the player holding the unmatched queen at the end of the game is the loser (or `old maid')