Potential problem for local trees, berry bushes and other plants.

Canadian Tiger Swallowtail (Papilio canadensis) butterfly caterpillar

A small black fuzzy caterpillar seen in the NPS administrative building in King Salmon, Alaska

9-2-14 Caterpillar with reddish tail - Tyonek, Alaska, USA

Milbert's tortoiseshell caterpillar infestation

7-28-14 Furry black caterpillars - Nondalton Alaska, USA

8-20-13 Arctiid moth caterpillars, Kake, Alaska, USA

8-10-14 Thousands of caterpillars - Lake Clark National Park, Alaska, USA

9-10-14 Unusual caterpillar - Big Lake, Alaska, USA