White-marked tussock caterpillars can have population outbreaks ... and give the appearance of antennae as well as a bright red head. Before the male caterpillars begin their transformations ...

In its butterfly state, the red Helen swallowtail is mostly black in color, with distinctive white spots and ... The great orange tip caterpillar lifts its head in a snake pose like it is planning ...

Beware the white hickory tussock moth caterpillar ... Despite the fuzzy appearance, contact with the caterpillar and their hair could leave people with a red, itchy rash similar to the results ...

PITTSBURGH - A venomous caterpillar from Canada has recently been spotted in parts of central Pennsylvania. If you see the white hickory ... in your skin and a red itchy rash will likely follow.