While salt moth caterpillars may not be harmful to people, asp caterpillars are. Take a look at what an asp looks like here from a previous KHOU 11 story. Are you seeing black fuzzy caterpillars?

HOUSTON — Watch your step! Some furry -- and fast -- little creatures are showing up in Houston. They're saltmarsh caterpillars and they're harmless to people! Your garden may be a different ...

The woolly bear caterpillar is also known as the fuzzy bear caterpillar or the woolly worm. The caterpillars have fuzzy bristles that are black on both ends with a band of orange in the middle.