Hantsmoths

Common immigrant from mainland Europe, sometimes appearing in vast numbers in all types of habitat throughout the British Isles, becoming established under favourable conditions, when occasionally reaching plague proportions on farms where cabbages are grown. Widespread and in some years abundant in Hampshire and on the Isle of Wight. Wingspan 12-17 mm. Larva feeds on various Cruciferae beneath a silken web, over-wintering as a pupa.