1S81.J 267 



The species is exceedingly like M. miliaris, and I am not sure if 

 tlie ? can be distinguished from the ? of that species ; the ^ , how- 

 ever, may be known from miliaris, ^ , by the keel on the last abdominal 

 segment being much shorter, not being much longer than broad, and 

 not reaching to the apex ; in miliaris, on the other hand, it projects 

 beyond the apex, which is thus not transverse ; the black on the ver- 

 tex, too, is broader, but behind it is not quite so broad, the edges 

 being testaceous. 



The larva feeds on Salix caprea, in August and September, feeding 

 either along the edge, or in the centre of the leaf. Its head is green, 

 with a faint yellowish tinge ; there is a brownish stripe on either side 

 going down from the vertex to the eyes : another line goes down to the 

 centre of face to the middle, the top is mottled with light brown dots. 

 Body deep green ; legs glassy-green ; the skin is much wrinkled, and 

 at the side the wrinkles form oblong raised objects, which are edged 

 with black. Over the eye is a black line, the entire body is covered 

 with blackish irregular lines, which give the skin a mottled appearance, 

 the back is also more or less covered with these lines ; the centre, 

 however, being much lighter in tint. 



The single cocoon is spun in the eai'th, the flies emerging in the 

 following summer. 



The larva of N. miliaris differs in not having the body mottled 

 with black, and in having a distinct black lateral line, sylvestris not 

 having one. 



Q-lasgow : April, 1884. 



NOTES ON BEITISH TORTRICES. 

 BY CHAS. G. BAEEETT. 

 {^Continued from page 244) 



Pcedisca corticana, "W. V. — Larva half an inch long, cylindrical, 

 rather sluggish, dull pale yellowish-brown or bone-colour, rather 

 darker towards the head, and having a conspicuous, square, reddish- 

 brown, internal blotch on the ninth segment. Spots small, black, hairs 

 rather long, head light shining brown, plates bone-colour, feet black. 



Living in a rolled oak-leaf, often connected with other leaves, and 

 sometimes with one of the soft leaf-galls of the oak or oak-apples, in 

 which it makes tunnels. When full-grown, making a smaller chamber 

 by drawing together a corner of oak-leaf within the rolled portion, 

 and finally becoming a pupa in the same place. Eeeding in June and 



