Wildlife Spotting

Stinging Nettle Slug Caterpillar (Cup Moth, Limacodidae) "Blaze".

Cup Moth larvae are often highly ornamented and brightly colored. Two main types can be distinguished: larvae armed with rows of protuberances bearing stinging spines called nettle caterpillars, or non-spined forms where the surface of the larvae may by completely smooth, called gelatin caterpillars. The larvae of this family bear no prolegs on their abdominal segments. The larva attaches itself to the substrate by means of an adhesive ventral surface. The movement is like a slug hence their generic name.

A stinging slug caterpillar (like this one) generally bears warning colouration and stinging hairs. These hairs can inject a venom from poison sacs carried at their base that are used as defensive weapons. Reactions can range from a mild itching to a very painful sting.