Goat moth
black. Eggs are 1.7 mm long, oval and reddish brown. The caterpillars are up to 10 cm long, pink when young, later with yellowish sides and a dark red back [...] back with a black head. The pupa is 5-6 cm long, dark brown, with spines on the abdominal segment. The moths fly at night in June or July and lay eggs on [...] General The goat moth ( Cossus cossus ), is a pest of broad-leafed trees. It is most often found in birch, ash, willow and elm but can also attack fruit