tussock moth caterpillar
Location: Ellicott City, MD
August 16, 2011 8:34 pm
I have determined that this is a tussock moth caterpillar, but I am unable to narrow it down further. Pale? Yellow-based? I can’t tell for sure from the pictures I’ve seen. Can you make a precise determination?
Your yellow caterpillar with a few tufts of black hairs is not a Tussock Moth Caterpillar, but rather, it is an American Dagger Moth Caterpillar, Acronicta americana, one of the Owlet Moths. You can verify our identification on Bugguide where it is indicated: “The caterpillar’s hairs can cause skin irritation.” You letter is the last we will be able to post this morning because of personal reasons.