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.
Regularly recorded at WWT Welney.
New UK BAP priority species.
Recorded in 32 (46%) of 69 10k Squares.
First Recorded in 1834.
Last Recorded in 2021.