What kind of caterpillar is black and fuzzy without an orange stripe?

The woolly bear caterpillar can be black without its otherwise hallmark coppery red middle band.

Specifically, the eggs are laid by the adult Isabella tiger moth (Pyrrharctia Isabella) during the summer, for hatching throughout the fall and winter. Caterpillars from the same clutch may sport a color range from red with minute black specks to the reverse. According to North American folklore, a predominantly or all black woolly bear caterpillar means upcoming severe winter weather. Such a dire prediction in fact tallies with this scientist/naturalist's observations of the weather during the critical months of May and September 2011.