Emperor Moth Saturnia pavonia
Britain’s only Silkmoth. The male and female have similar markings, but the female is larger, and the male is more brightly coloured. The Emperor Moth occurs in many rural areas but is particularly found on heaths, where they breed on Heathers. Eggs are laid in clusters on the heather, looking just like the dead flowerheads from last year.
The larvae feed on a variety of plants, including Bramble, Raspberry, Hawthorn, Blackthorn, Apple, Plum, Blackthorn, Oak, Hornbeam, Birch, Heathers and Heaths, Blueberry, Meadowsweet, Wild Rose, Sea Buckthorn, Purple Loosestrife, Willows especially Osier Salix viminalis, Pussy Willow (Sallow).
The caterpillars cluster in the early instars, eventually spreading out and becoming brightly coloured, as beautiful as such exotics as the Indian Moon Moth. The cocoon is spun in the foodplant. This is the stage that passes the winter. An interesting construction with a neck and open end, through which the adult emerges in spring. This is one of the fun species to rear.