14 THE ENTOMOLOGIST. 



were dark greenish brown, the sides yellowish green, and the 

 head dark wainscot-brown. They ted up well on bilberry ; 

 and on the 3rd of June, being full grown, their description 

 was taken as follows : — Length about an inch and a quarter, 

 and of average bulk in proportion. The head has the lobes 

 rounded, but is rather flat in front, and is slightly broader 

 than the 2nd segment. Body tolerably, but rather unevenly, 

 cylindrical, tapering a little towards the head; there is a 

 slight lateral ridge, which on the 3rd segment lakes the form 

 of a distinct swelling. The skin has a tough appearance and 

 is rather rough ; there are a few exceedingly minute hairs 

 upon it; the segments slightly overlap each other, rendering 

 the divisions distinct. The ground colour varies in different 

 specimens from a median shade of brown to almost black, the 

 great majority, however, being of the paler type. In these 

 the head is of the same colour, with two median pale lines, 

 and a reddish brown mark on the side of each lobe. On the 

 dorsal surface is a series of large, pale, almost diamond- 

 shaped whitish marks, each of these marks being more or less 

 mottled with brown spots and streaks; those on the posterior 

 segments are the largest and most conspicuous; those on the 

 others indeed vary very much both in size and distinctness, 

 in some being confused and not so noticeable. The pale 

 whitish subdorsal lines are distinct only on the Snd, 3rd and 

 4lh segments, being a continuation of the two pale lines on 

 the head ; the space between these pale lines is filled up by 

 a short black stripe, and on the 3rd segment (the swollen 

 one) is a transverse black collar. Along the spiracular region, 

 on the lateral ridge, are a few dull reddish brown marks. 

 The ventral surface and claspers are of the same shade as the 

 ground of the dorsal surface, but there is a distinct, narrow, 

 dark brown central line, rather broadly Jaordered with pale 

 grayish white. Legs brown. The cocoon is very slight, and 

 is formed by drawing together with silken threads a few old 

 leaves. The pupa is about five-eighths of an inch in length ; 

 the eye-, leg- and wing-cases prominent ; the anal tip pointed. 

 Colour pinkish brown, the wing-cases streaked with dark 

 brown ; dorsal line broad, dark brown ; behind the head it 

 divides into a V-like mark; there is also a dark brown 

 ventral stripe from the base of the wing-cases to the anal tip. 

 The first imago emerged on the 21st of June. — Geo. T. 

 Porrill ; H udder sjield^ November 2, 1875. 



