158 THE CANADIAN ENTOMOLOGIST. 



a reddish-brown, as does also the whole dorsum of segment 13 and part 

 of segment 12. 



Stage III. — Length, 11. 5 mm. In general appearance the larvae are 

 now dark purplish-black, with a conspicuous white stigmatal band. Head 

 i.o to I.I mm. wide; honey colour, darkened at vertex. The larv?e in 

 this stage are darker than Stage II, and the markings on body are more 

 distinct. The dorsal stripe is wider and more apparent than the sub- 

 dorsal and lateral stripes ; all these stripes pale blue. The lateral stripe 

 is the least conspicuous. Stigmatal band creamy-white and very distinct. 

 Under a lens the colour of the skin of body above the sub-dorsal stripe is 

 almost a bottle-green, with small, pale bluish and blackish mottlings. 

 The dorsal stripe is narrowly margined on either side with black, as is also 

 the upper edge of the sub-dorsal stripe. The colour of the skin between 

 the sub-dorsal stripe and the stigmatal band is almost a clove-brown. 

 Skin below spiracles dark brownish, becoming paler and of a bluish tinge 

 towards centre of venter. Tubercles small, black. Spiracles round, black. 

 Thoracic feet semi-translucent, dark at tips ; prolegs sordid-white, darkened 

 exteriorly towards base. 



Stage IV. — Length, 18 mm.; Head 1.6 to 1.75 mm. wide ; testaceous, 

 reticulated with darker brown ; ocelli black. Body purplish-black, the 

 skin above the sub-dorsal stripe with a greenish tinge, throughout which 

 are numerous streaks and dots of black. The stripes on the body are the 

 same as in last stage. The creamy-white stigmatal band is even, wide and 

 very conspicuous. The spiracles are black, elliptical in front of tubercle 

 iv. Tubercles black, small and inconspicuous. Thoracic feet rather 

 translucent, with a brownish tinge ; prolegs pale, darker towards base. 

 Venter slightly pruinose, more apparent in some specimens than in others. 

 The larva is a beautiful creature with its dark body, pale bluish stripes 

 and prominent stigmatal band. 



Stage V. — Length, 22 mm. Head 2.3 to 2.5 mm. wide; reticulated 

 with brown, as in last stage ; an oblique, wide band of brown crosses 

 upper portion of each cheek. The larvae are now altogether different from 

 previous stages. The colour of the dorsuui from the sub-dorsal stripe on 

 one side to the sub-dorsal stripe on opposite side is dark yellowish 

 (yellowish-green in a few specimens), blotched with brown. The tubercles 

 within this area are circled with white. This yellowish colour of dorsum 



