Cottonwood Borer vs Square-spot Rustic

Side-by-side species comparison

Attribute Cottonwood Borer Square-spot Rustic
Scientific Name Plectrodera scalator Xestia xanthographa
Order Coleoptera Lepidoptera
Family Cerambycidae Noctuidae
Size 25-40 mm 32-38 mm wingspan
Habitat Rivers & Streams Gardens
Diet Root Feeders Root Feeders
Regions Central and eastern United States Europe
Conservation Least Concern Least Concern

Cottonwood Borer

A large longhorn beetle with bold black and white patterning and long antennae. Its larvae bore into the roots and lower trunks of cottonwood and willow trees.

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Did You Know?

When handled, it produces a loud squeaking sound by rubbing parts of its thorax together.

Square-spot Rustic

An extremely common autumn-flying moth with a diagnostic square stigma on the forewing. One of the most abundant moths in British gardens. Larvae feed on grasses.

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Did You Know?

Often the single most abundant moth species in garden moth traps during September.