58 ROYAL SOCIETY OF CANADA 
black, in a line with tubercle iv, but almost directly below tubercle iii. 
Thoracic feet darker than venter; prolegs concolorous. 
Stage IIIT.—Length 9.5 mm. Head 1.0 to 1.1 mm. wide, erect, 
pale brown, mottled with dark brown, especially towards apex of cheeks ; 
ocelli black; mouth parts reddish. Dorsal and upper lateral stripes 
pale bluish and distinct; lower lateral stripe same colour, but 
not so distinct. Skin above lower lateral stripe dark French 
green; between lower lateral stripe and stigmatal band almost a 
prune purple, which later in the stage changes to a bright purple. 
Stigmatal band white, tinted with purple. Ventral surface paler green 
than dorsal. Tubercles black, single haired, circled with pale green. 
Spiracles pale, ringed with black, close in front of tubercle iv. Feet 
tather paler than venter. 
Stage IV.—Length 13 mm. Head 1.5 to 1.6 mm. wide, erect, pale 
brown, reticulated and mottled with dark brown; ocelli black. Dorsal 
stripe and lateral stripe concolorous with skin of dorsum, and only shown 
up by a blackish border on each side. Only faïnt traces of the lower 
lateral stripe are now present. Below the lower lateral stripe to the 
edge of the stigmatal band the skin is of a rich purple, almost a prune 
purple. The whole skin above spiracles is streaked and dotted with 
black. Skin below stigmatal band whitish-green, mottled with black. 
Stigmatal band whitish, suffused with crimson. Skin of body above 
lower lateral stripe grayish-green, almost a sage green. Tubercles 
small, black, inconspicuous, circled with the ground colour of the dorsum. 
Spiracles yellowish, ringed with black. Feet concolorous with venter; 
thoracic feet rather translucent. 
Stage V.—Length 18 mm. The larve in this stage are much the 
same as in Stage IV. Head 2.0 to 2.3 mm. wide. Body almost a sage 
green on dorsal and sub-dorsal area, but the whole skin of dorsum has a 
purplish tinge and is streaked and dotted with dark brown. Dorsal and 
lateral stripes inconspicuous and broken; no traces of lower lateral 
stripe. The skin just above the stigmatal band is still purplish, but now 
more of a pomegranate purple, and not so distinct as in Stage IV. 
Stigmatal band whitish, almost wholly suffused with purple. Skin 
below stigmatal band greenish-white dotted and blotched with white 
marks. Tubercles black, inconspicuous. Spiracles light yellow, rimmed 
with black. Thoracic feet concolorous with venter, brownish at tips. 
Stage VI.—Length 24 mm. Head 3.5 mm. wide, pale brown, 
reticulated and darkened with dark brown, especially at vertex of cheeks; 
ocelli black; epistoma whitish. Body cylindrical, ground colour 
yellowish-white, some specimens darker than others. The whole skin 
has a purplish sheen, especially at the intersegmental folds, and, above 
