THE CANADIAN ENTOMOLOGIST. 283 



down to the base of the anal feet. In the larvae of both colours the venter 

 is slightly lighter than the dorsum. Cervical shield slightly darker than 

 body. In all the specimens the whole skin above the stigmatal band is 

 densely mottled with minute black blotches and streaks. In some of the 

 brown specimens the skin between the dorsal and lateral stripes, and 

 lateral stripe and substigmatal band, has a decidedly reddish tinge, 

 chiefly along the lower edge of the lateral stripe. In a very few 

 specimens traces are evident of the lower lateral stripe which was plain in 

 Stages II., III. and IV. Tubercles normal, very small, black, each on a 

 small black spot ; bristles short. Tubercle iv. is in a straight line close 

 behind the centre of the spiracle. Spiracles yellowish, ringed with 

 black. Thoracic feet and prolegs concolorous with venter ; thoracic 

 feet tipped with black. Tips of claspers of prolegs dark. 



The mature larva is 37 mm. in length at rest, and 40 mm. when 

 extended. 



In the Report of the Dominion Entomologist, mentioned above, at 

 page 237, the following gene/al description of the full-grown larva is 

 given : 



"The general appearance of these caterpillars may be described 

 as follows : The ground colour of the body, which varies remarkably in 

 different specimens of the same brood, ranges from yellowish-green, 

 through a dull yellow ochre, a ruddy brown, to a dark umber brown. 

 The markings may be described as minute mottlings, dots and streaks 

 aggregated on the dorsal area into a regular pattern consisting of a 

 medio-dorsal continuous band, with a pale disconnected narrow line in 

 the centre, and two lateral less-connected stripes also centred with a pale 

 thread and of about the same intensity as the medio-dorsal band. The 

 space between the lateral stripes is closely speckled with black dots. The 

 stigmatal stripe is black, narrow and distinct, and close beneath it is a 

 wide, conspicuous, yellow substigmatal band with the ground colour 

 showing through it in places. The ventral surface is slightly paler than 

 the dorsal. The head is honey yellow, mottled with darker markings." 



It will be noticed that in the above extract the conspicuous dark 

 shading above the substigmatal band has been given the value of a 

 definite stripe, and referred to as the stigmatal stripe. 



On the 6th July nine specimens buried, and the rest soon followed. 

 A slight cocoon is formed apparently without any silk. 



