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Bugs & Butterflies UK

Puss Moth | Cerura vinula EGGS

Puss Moth | Cerura vinula EGGS

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Cerura vinula, commonly known as the Puss Moth, is a striking species belonging to the family Notodontidae. This moth is widely distributed across Europe. Its unique appearance and fascinating larval behavior make it a favorite among entomologists and nature enthusiasts.

Adult Puss Moths are relatively large, with a wingspan of 58–75 mm. Their forewings are pale gray with intricate black markings, giving them a marbled appearance that provides excellent camouflage against tree bark. The hindwings are lighter, often whitish, with subtle markings. Their furry, plush-like body and legs contribute to their common name, as they resemble a "pussycat" in softness. Adults are nocturnal and have a short lifespan, during which their primary focus is reproduction since they do not feed.

The larvae of Cerura vinula are even more extraordinary. They are bright green with bold white and black markings, and their appearance changes as they mature. Young caterpillars have distinctive red "tails," which are long, flexible extensions called anal prolegs. These tails can be waved or curled when the caterpillar is disturbed, serving as a defensive mechanism. Older caterpillars develop a pinkish-red head with two prominent black "eye spots," making them look intimidating to potential predators. When further threatened, they can spray formic acid as a chemical defense - though this is very rare in captive individuals, they should still be handled with care.

The caterpillars feed on the leaves of poplar (Populus spp.) and willow (Salix spp.) trees, and their feeding can sometimes cause noticeable defoliation. They pupate in a hard, wood-like cocoon attached to tree trunks or branches, which provides excellent protection during the winter months. The adult moths emerge in spring to complete the cycle.

Difficulty - Easy (1/10)

Host plants - Oak; Willow; Sallow; Hawthorn; Hazel; Beech

Conditions - Room temperature or outdoors.

Lifecycle - Single brood with pupae overwintering in hard, wood-like cocoons.

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