Id8 
ACIDALIA RUSTICARIA. 
Plate XXIII. Figure 13. 
This insect measures a little under three quarters of 
an inch in expanse. 
Male: fore wings pale greyish-white, with a greyish- 
brown patch near the inner corner on the upper margin, 
and the outer margin clouded with pale dull yellowish- 
grey ; central shade greyish brown; central spot black. 
Localities for this species are the Isle of Portland, 
Lewisham, and Northfleet. 
The perfect insect appears in July. 
ACIDALIA OSSEARIA. 
DARK CREAM WAVE. 
Plate XXIII. Figure 14. 
This insect measures about three quarters of an inch 
in expanse. 
Male: fore wings dull yellowish-white, brownish on 
the upper margin. The first line is blackish and waved, 
second line also blackish and waved; third line pale 
brown, followed by another band of the same; outer 
margin spotted with black; central shade pale brown; 
central spot black. Hind wings crossed in like manner 
with three darker waved slender streaks. 
Localities for this species are Cambridge, Halton, West 
Looe, Yentnor, Stowmarket, Lower G-uiting, Birkenhead, 
Exeter, Manchester. 
The perfect insect appears at the end of June and 
in July. 
