Cheshire
Macro-Moths - Emperor Moth
The
Emperor Moth - Pavonia pavonia Linnaeus
Imago / Adult:
The adult moth (imago) varies between 55mm and 85 mm
wingspan with the female being invariably larger than the male. The
ground colour is generally grey though in the male this is heavily
suffused with purple, pink and orange. It is a resident moth which
is single-brooded and normally flies throughout April and May. The
male tends to fly by day and the female at night. A very localised
moth in the Vice-Counties of Cheshire (VC-58) and South Lancashire
(VC-59) where it is mainly associated with the Pennine fringes and
areas of heathland. The moth, especially the female, comes readily
to both MV and actinic light sources.
Larva:
The larvae, usually 60 to 65mm in length, have a bright
green body with black bands around the middle of each body segment.
On these black bands grow hair bearing tunercles the ground colour
of which can be white, yellow or purple. The hairs coming from these
tubercles are jet black.
Foodplant(s):
The foodplants are varied and tend to change depending
upon the habitat the moth inhabits. For example on heathland and moorland
its main foodplant is heather, whereas on coastal cliffs and woodland
edges it tends to be more catholic in taste consuming bramble, blackthorn,
sallow, hazel and meadowsweet.
Overwintering:
The moth overwinters as a pupa (chrysalis) wrapped
in a tough and fibrous, gingerish-brown cocoon spun up at ground level
amongst the stems of low growing plants (e.g. heather), or occasionaly
high up in the tops of the heather stems.