144 THE ENTOMOLOGIST, 



prevail in the spring, greatly retarding their emergence ; the 

 larvae feed up very rapidly, the moths appearing on the wing 

 at the end of May or in June, and these again depositing 

 eggs ; a second brood is on the wing in August, but many of 

 this second brood pass the winter in the pupa state, and 

 the moths, appearing in the spring, deposit the eggs which 

 produce the May brood of moths. The full-fed larva rests 

 with the anterior extremity rigidly extended, but often in a 

 slightly arcuate position ; when annoyed it tucks in its head, 

 and rolls up the anterior part of its body in the form of the 

 Ionic volute : the legs are crowded together, and closely ap- 

 pressed to the mouth. The head is prone, not conspicuously 

 notched on the crown, and nearly of the same width as the 

 body : the body is of nearly the same width throughout, and 

 uniformly cylindrical, with the exception of a lateral skinfold 

 which extends its entire length ; it is without humps, but, in 

 common with the head, has a few small scattered warts, each 

 of which emits a single small bristle. Head putty-colour, 

 freckled with black on the face, and having a darker stripe 

 on each cheek : colour of the dorsal area of the body, as far 

 as the 9lh segment, dingy brown, but this hue appears to be 

 caused by the somewhat tessellated ornamentation ; this con- 

 sists, in the first place, of a medio-dorsal stripe, narrow and 

 almost thread-like on the 3rd, 4th, 5th, 10th, 11th and 12th 

 segments ; on the 6lh, 7th, 8th and 9th segments the medio- 

 dorsal stripe is interrupted, and reduced to a median intensely 

 black spot ; each of these black spots is surrounded by a 

 paler area, dilated laterally, but attenuated at the extremities; 

 a dorsal series of lozenge-shaped markings results, as far as 

 regards these four segments ; on each side of this dorsal 

 ornamentation are three slender rivulet stripes, all of them 

 sesquialterous or semi-double, but neither of them very con- 

 spicuous ; the ventral area, extending to and including the 

 spiracles, is putty-coloured, but the spiracles themselves are 

 intensely black, and surrounded by a paler area ; there is a 

 medio-ventral pale brown or reddish stripe, containing three 

 black spots, and extending from the 5th to the 12th segments; 

 on each side of this medio-ventral stripe the ground colour is 

 extremely pale, and the pale part is bounded by a double 

 sinuous darker stripe, very similar to those on the dorsal 

 area ; this commences at the base of the third pair of legs, 



