Norfolk status Large moth. Occasionally comes to light otherwise seldom seen. Riverbanks, fens, marshes. Overwinters three or four times as larva, final time in a cocoon, feeding internally by boring through the bark and heartwood of a wide variety of broad-leaved trees, including sallows, willows and poplars. Normally in old or damaged trees where it can gain easier access. Favours low lying damp situations prone to flooding. English name from the strong 'goaty' odour of the caterpillar.
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