Another caterpillar on nettle

Another caterpillar on nettle

Observation - Another caterpillar on nettle. Description: Dark, hairy caterpillars feeding on nettle. Performed a sort of synchronised twitching (not in the bird-watching sense!) when alarmed.

Dark, hairy caterpillars feeding on nettle. Performed a sort of synchronised twitching (not in the bird-watching sense!) when alarmed.