80 
side. Hind wings pale grey, darker within the margin, 
and with a narrow indented line across the middle. 
Female: fore wings brownish-grey, with a darker cross 
indented band. Hind wings brownish-grey. 
Localities for this species are York,Blandford, Carlisle, 
Burton-on-Trent, Bedford, Epping, Lewisham, Worcester, 
West Wickham, Derby, Rotherham, Dorchester, Ly- 
mington, Ripon, Halton, Lewes, Darlington, Preston, 
Bristol, Sheffield, Stowmarket, Wavendon. 
The situations where it is found are woods. 
The perfect insect appears in September. 
The caterpillar is bluish-black, with yellow hairs and 
a yellow stripe on each side within two rows of raised 
red spots, and also a row of white spots. 
The date of the appearance of the caterpillar is in 
May and June. 
It feeds on the whitethorn, the blackthorn, and the 
sallow. 
PCECILOCAMPA POPULL 
DECEMBER MOTH. 
Plate XIII. Figure 4. 
This insect measures from a little over one inch and 
a quarter to nearly one inch and three quarters in width. 
Male: fore wings very dark purple-red brown, inclining 
to orange at the inner corner, which colour is followed 
by a waved line of buff, of which there is another curved 
line across beyond the middle. Hind wings paler, with a 
1 ight col oured central stripe, and incli ning to tran sparency. 
Localities for this species are Malton, York, Hudders¬ 
field, Lewes, Kingsbury, Isle of Man, Halton, Wavendon, 
