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Rusty tussock moth

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description Rusty tussock moth Overview

The rusty tussock moth (Orgyia antiqua) is a Holarctic lymantriid whose wingless females lay eggs directly on their cocoons, and whose tufted larvae are a widespread defoliator of trees across Europe and North America.

help Rusty tussock moth FAQ

What is the scientific name of the rusty tussock moth?

The rusty tussock moth is Orgyia antiqua. It is a Holarctic moth found across parts of Europe and North America.

What is unusual about female rusty tussock moths?

The females are wingless and lay their eggs directly on or near their cocoons. This is different from many moth species in which females fly to distribute eggs.

What do rusty tussock moth caterpillars look like?

The larvae are tufted and hairy, with distinctive brush-like structures. Their appearance helps distinguish them from smoother caterpillars, but they should still be handled cautiously because some tussock moth hairs can irritate skin.

Do rusty tussock moth caterpillars damage trees?

Yes. The larvae feed on tree foliage and can act as widespread defoliators across their range. Healthy established trees often tolerate limited feeding, while heavy outbreaks can cause more serious stress.

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