112 t'octobe 
I 
The larvae from the first were little dingy foggy -looking ^^^UoV* 
with a quantity of fine hair on their backs ; and although atv%r t' 
last moult their plumes became denser and darker than before, ^ ye 
description of the last stage is applicable throughout. 
■WTien full-grown, the length is a trifle over half-an-inch, the hi' • 
that project before and behind making it look a little longer, the figu 
stout, uniform in bulk ; the skin very shining, but densely covered witl 
plumes ; segments 2 and 13 are furnished only with short simple haini 
but the other segments have each sis whorls of wonderful plumos 
verticillate hairs, those on 3 to 7 being full one-eighth of an incl 
high, and those on 8 to 1 2 a little shorter, while along the sides an( 
just above the feet are tufts of plain hairs ; when looking at one o 
them in motion, I could not help mentally comparing it to an animate( 
hearse with palish plumes. 
The colour of the skin, when it can be seen, is a waxy dark drab 
the plumes from the head to segment 7 are blackish mouse colour, an( 
the rest a paler tint of the same. "When disturbed, the larva puts it 
nose and heels together, bending itself into a circle, with the tuft 
standing out apart. 
The cocoon is a long oval in shape, very slight but close in texture 
the silk wonderfully interwoven with the cast-off plumes stuck uprigh 
so that whilst fresh and uninjured by rain it might at first sight \ 
mistaken for the larva ; one which I watched in progress was con 
pletely finished, so far as outward appearance went, in four-and-twent 
hours. The pupa is short, reddish-brown in colour, the cast larva-ski 
adhering to the anal segments. 
Mr. Buckler kindly allows me to incorporate with my notes tl 
following descriptions made by him of two other species of LithosiA 
which he has lately figured from specimens supplied by the kind libe 
rality of Mr. Machin, 
LitJiosia helveola. Your larvae, not far from full growth, receivet 
on June 13th ; their food being a large coarse lichen growing on th( 
bark of yew trees. In a few days they had spun rather loose cocoona 
with a few grains of earth attached to the silk, on the under-side of th< 
pieces of bark. The moths appeared July 2nd— 6th. 
When full growoi, the larva is nearly three quarters of an inch ii 
length, moderately stout, with the posterior segments tapering slicrhth 
towards the tail. All the tubercles furnished with tufts of hair. 
