48 LEPIDOPTERA. 



Thorax and legs, beneath, whitish ; abdomen, golden-brown. 

 Sexes similar. 



On the wing in August and September, and also in April 

 and INIay. It is stated that those appearing in the spring 

 are from pupa3 which have remained unchanged through the 

 winter ; but most probably some of the imagines also hyber- 

 nate. 



Larva about Z\ inches in length. Body cylindrical, but 

 tapering regularly from the fifth segment to the head, which 

 is small. Segments not deeply divided, and the whole 

 body smooth and solid looking. Horn long, blunt at the 

 tip, rather upright, and but slightly curved back. Anal pro- 

 legs broad and square. Head black, with a yellow streak 

 across the mouth. Dorsal-plate black, conspicuous. Back, 

 and sides of the body down to the spiracles, deep dark green ; 

 dorsal line rather narrow, pinkish yellow, very distinct, and 

 sharply edged by the ground colour. In the anterior portion 

 of each segment on each side, from the fourth to the eleventh, 

 is a large, roundish, yellow subdorsal spot, tinged with pink 

 in the upper portion, and enclosed in a deep black ring, to 

 which, on its upper edge, are attached two black spots. On 

 the twelfth segment is a similar large yellow spot, but pear- 

 shaped, and on the second segment a smaller paler spot. The 

 broad area of each segment behind these large spots is pi'o- 

 fusely covered with yellowish green dots arranged in lines. 

 Below the spiracles, which are yellowish, the skin is puckered, 

 and along this portion runs a broad white or yellowish-white 

 subspiracular line, broken by roundish spots of pale pink 

 which shade off into the pinkish under-surface. Legs black ; 

 prolegs pale pink with a black spot in front, except that the 

 broad anal prolegs are black. Horn reddish, tipped with 

 black. 



The dark colour is sometimes still more dotted with yellow, 

 and the head, dorsal line, and lower parts of the body seem 

 to vary between pink and yellow. In other cases the dorsal 



