206 
Male: fore wings pale grey with several darker waved 
lines and bands across, and in some cases two dark and 
two pale bands alternately; central spot blackish but in¬ 
distinct. Hind wings whitish, with, in some specimens, 
one or two lines following the course of the outer margin, 
and the latter with a line of small black dots. 
Localities for this rather abundant species are York, 
Brighton, Darenth Wood, Faversham, Bromsgrove, Fal¬ 
mouth, Barnstaple, Exeter, Plymouth. 
The perfect insect appears in the latter end of Sep¬ 
tember and October. 
The caterpillar is green, bluish white on the under 
part. 
The date of the appearance of the caterpillar is in 
May. 
It feeds on the oak, the elm, &c. 
The chrysalis is subterranean. 
This is a variable species. 
OPORABIA FILIGRAMMARIA. 
Plate XXVIII. Figured. 
This insect measures from a little over an inch to an 
inch and a quarter in expanse. 
Male : fore wings pale grey crossed by several darker 
waved lines, two of them forming the edge of a central 
band; central spot black. Hind wings whitish, the outer 
margin pale grey. 
Localities for this species are the Isle of Man, Birken¬ 
head, Bolton, Preston, Knowsley, Edinburgh, Manchester, 
Leeds, Arran, Plymouth, &c. 
