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. 



ACIDALIA 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, pale grey; 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 inner end; central spot black. 



Localities for this species are York, Scarborough, Bris- 

 tol, Newcastle-on-Tyne, Barnstaple, Humberstone, Lewes, 

 Faversham, Worcester, Glasgow, Lower Guiting, Halton, 

 Darlington, Stowmarket, Worthing, Tenterden, Brighton, 

 Manchester, Newnham, Birkenhead, Cambridge, Kings- 

 bury, Lyndhurst. 



The perfect insect appears in June and July. 



