Isabella moth \Is`a*bel"la moth`\ (?; 115). (Zool.) A common American moth (Pyrrharctia isabella), of an isabella color. The larva, called woolly bear and hedgehog caterpillar, is densely covered with hairs, which are black at each end of the body, and red in the middle part. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Isabella moth \Is`a*bel"la moth`\ (?; 115). (Zo["o]l.) A common American moth (Pyrrharctia isabella), of an isabella color. The larva, called woolly bear and hedgehog caterpillar, is densely covered with hairs, which are black at each end of the body, and red in the middle part.

Source: Webster's Revised Unabridged Dictionary (1913)