species 837 observations

Poplar Carpenterworm Moth

Acossus centerensis

Field notes

Acossus centerensis, the poplar carpenterworm, is a moth of the family Cossidae. It is found in North America from New Jersey west to Illinois and North Dakota. In Canada it is found from Quebec and Ontario west to British Columbia.

The wingspan is 40–50 mm for males and 50–64 mm for females.

The larvae feed on Populus species, mainly Populus tremuloides, but also balsam poplars.

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Range

United States

Greener is more native, amber more introduced; paler is less certain. How this was decided