THE CANADIAN ENTOMOLOGIST. 



greenish gray, mottled on part above the subspiracular fold with velvety 

 black. Top of the second segment almost solidly black, with a thin pale 

 horn colour dorsal line, the warts very small and similar in colour to 

 dorsal line. This black patch is bordered on the sides by a whitish line, 

 and below is a clear greenish wedge-shape space, wider anteriorly; below 

 this it is mottled in black to the subspiracular band. Dorsal stripe from 

 3rd segment to 13th yellow, shaded with orange. Warts distinct, white 

 like glazed porcelain. Setse rather weak, pale in colour. On 8th to nth 

 segments there are two small white dots like warts in advance of wart i., 

 at about same distance from i. as ii. is. These spots are a little further 

 from the dorsal line than i., but not quite as far as ii. Subdorsal stripe 

 broken up into a line of spots, subspiracular fold broad, cream colour; 

 just above this a black band of varying width, widest at the spiracles, 

 which show upon it as white ovals; between this and the subdorsal stripe 

 there is a series of white dots. 



The black mottling tends to be grouped about the warts and other 

 white dots. 



The top of the 12th segment is slightly swollen. Below the sub- 

 spiracular fold the body is pale green with only a powdering of 

 black atoms about the warts v. and vi. 



Feet and claspers pale green. 



On 23rd May I noticed that there were only 13 larva? in the 

 jar where there had been 14, and it is possible that one had been eaten, 

 though they had never been short of food. In the other jar cannibalism, 

 which is a characteristic of this group, had evidently been practised, 

 as evidenced by the remaining anal extremity of a larva which had 

 apparently been devoured when in process of moulting. 



I therefore separated them into four jars so that they should have 

 more room. One larva was of a much grayer tone than the average, 

 being wanting in the greenish shade. The larvae were mature about the 

 end of May, the colour as usual changing just before the pupation, the 

 greenish shade of the upper area giving place to a pinkish tinge. 



The length of the mature larva is 31-32 mm. The larva enters the 

 ground and makes a close cocoon of grayish silk and pellets of earth. 

 The pupa is of the usual noctuid type. The moths began to appear 

 about the 29th July, and continued to emerge for a week or ten days. 

 This is very much earlier than they would have emerged had they been 

 subjected to the vicissitudes of their natural life out of doors. 



