Species Insects & ArthropodsCarpenter Moth

Carpenter Moth

Prionoxystus robiniae

UncommonInsect & Arthropod
Illustration of Carpenter Moth (Prionoxystus robiniae)

The Carpenter Moth (Prionoxystus robiniae), the Leopard Moth, is a large, white moth densely spotted with dark blue-black spots and blotches. Its larvae spend two to three years boring through the heartwood of oaks, willows, and other hardwoods, creating large tunnels that weaken trees. It is attracted to lights and its large size and striking pattern make it memorable.

Habitat
Deciduous forests, parks, and urban trees
Diet
Larvae: heartwood of oaks, willows, and other hardwoods. Adults: do not feed
How common
Uncommon

Recent Carpenter Moth sightings near you

Live, research-grade observations from iNaturalist. Allow location to center the map on you.

Spot a Carpenter Moth? Identify it instantly.

Point Huck at any plant or animal and get an instant ID, rarity, and field notes — building your personal nature collection as you go.

Get Huck — free

More insects & arthropods

13-Year Periodical Cicada
13-Year Periodical Cicada
Magicicada tredecim
Acmon Blue
Acmon Blue
Plebejus acmon
Acorn Ant
Acorn Ant
Temnothorax curvispinosus
Acorn Weevil
Acorn Weevil
Curculio glandium
Aerial Yellowjacket
Aerial Yellowjacket
Dolichovespula arenaria
Alderfly
Alderfly
Sialis lutaria
Alfalfa Leafcutting Bee
Alfalfa Leafcutting Bee
Megachile rotundata
Ambush Bug
Ambush Bug
Phymata americana