Goat Moth Cossus cossus

The Goat Moth (Cossus cossus) is one of Britain’s largest moths, its substantial larvae boring into the heartwood of veteran trees – particularly willows, poplars, and ash – over a larval period that can last several years. It takes its name from the strong, goat-like smell produced by the larvae. Declining across Britain due to the loss of veteran trees and old orchards, it is a species that depends on the long-term continuity of suitable host trees. In Suffolk it is associated with veteran willows along river valleys and coastal levels, parkland trees, and old orchards. Retaining veteran and over-mature trees – including those with decay and cavities – is essential for this impressive moth. Image: © Paul Kitchener, Flickr.

Find out more: iNaturalist, UK Moths, Suffolk Moths