155 
straight and dark brown; central shade dull brown. 
Hind wings with two dull streaks across. 
Localities for this species are York, Brighton, and 
North Foreland Meadow near Dover. 
The perfect insect appears in June. 
ACID ALIA SCUTULARIA, 
SINGLE DOTTED WAVE. 
Plate XXIII. Figure 9. 
This insect measures from a little under to a little 
over three quarters of an inch in width. 
Male : fore wings greyish-white with a comparatively 
large patch of dark grey at the lower corner. The first 
line is black and curved, with, but in some specimens only, 
a row, or part of a row, of dots : second line black and 
curved, and also sometimes only indicated by a few dots; 
third line waved and blackish ; central shade, if visible at 
all,palegrey; central spot black. Hind wings also greyish- 
white, with a pale dusky bent line across near the inner 
corner, a dark line of the same following the outer margin 
some way within it, the space between being also dusky, 
and a black spot at its iuner end; central spot black. 
Localities for this species are York, Scarborough, Bris¬ 
tol, Newcastle-on-Tyne, Barnstaple, Humberstone, Lewes, 
Faversham, Worcester, Glasgow, Lower Guiting, Hal ton, 
Darlington, Stowmarket, Worthing, Tenterden, Brighton, 
Manchester, Newnham, Birkenhead, Cambridge, Kings¬ 
bury, Lyndhurst. 
The perfect insect appears in June and July. 
