THE CANADIAN ENTOMOLOGIST. 281 



yellow, and is the most conspicuous marking on the body. The black 

 tubercles are as before, but at the base of each there is a pale circle. 

 Spiracles rimmed with bla : Thoracic feet and pre gs 



concolorous with venter, thoracic feet darkened at tips. Gaspers of 

 prolegs slightly reddish : bristles pale and short. 



On the i8thjune a few larva? passed the third moult, and on the 19th 

 nearly all the iemaining specimens moulted. 



Stage IV. — Length 12.5 mm. Head 1.2 to 1.4 mm. wide, shaped 

 >efore. pale brown, finely mottled with darker brown, particularly 

 on upper half of cheek ; each hair on face encircled at base with 

 black : antennae and mandibles as before : ocelli dark. Body above 

 spiracles dull brown with a greenish and a reddish tinge, below spiracles 

 paler, namely, greenish brown with a reddish tinge. The colour of 

 a few specimens above the spir.-- dull greenish, as in the case of the 



majority of specimens in lasl _e. Dorsal and upper lateral stripes 

 :ish, distinct, edged with blackish brown : the lower lateral stripe just 

 above tubercle iii very faint, as in Stage III. Substigmatal band v. 

 wide and conspicuous, of a bright light yellow colour, with a bright 

 red stripe running through the lower half. Tubercles black, small, shii 

 each with a pale circle at I in las - _ ery short and 



black. Spiracles yellowish, rimmed with black. Thoracic feet and 

 prolegs pale, of a translucent appearance, all the feet spotted with black ; 

 bristles short. 



On the 23rd June many of the larvre passed the fourth moult, others 

 a day or two following. 



Stage V. — Length, 15 mm. Head 1.6 to 1.7 mm. wide, as in I; 

 stage, testaceous, mottled with darker brown. In this stage most of the 

 larvae are of an apple-green colour, only a few being dull brown or 



reddish above spiracles ; oth the larvae are much the same as in the 



last stage. The pale lower late tripe just above tubercle iii has now 



disappeared, and the only stripes on the body are the dorsal and upper 

 lateral (which afterwards will be mentioned as the lateral), and the wide, 

 conspicuous substigmatal band. In the green larvae the dorsal and lateral 

 pes are white, both bordered on each side with dark green, the dorsal 

 stripe being the more heavily bordered. The substigmatal band is bright 

 pale yellow, with no red on ii. In the \ hich are reddish above 



spiracles, the substigmatal band is yellow, with some red on it, but not so 

 much as in last stage. The dorsal and lateral stripes are not so white as 



