64 ROYAL SOCIETY OF CANADA 
raises the body slightly as far as the third pair of abdominal prolegs. 
somewhat as in the Sphingide. 
Stage IJ —Length 6 mm. Head 1.0 mm. wide, whitish. Body 
glaucous green, with two distinct pale lateral bands, and a dark green 
dorsal vessel. There is also a pale, thin, wavy stigmatal line. No other 
markings on the body, skin smooth as before. Spiracles white. Venter 
paler than dorsum. ‘Thoracic feet and prolegs concolorous with venter, 
anal prolegs divergent. 
Stage III.—Length 10.5 mm. Head 1.6 mm. wide. The larvæ 
are the same as in last stage, with the exception that there is now a 
faint stripe between the lateral band and the stigmatal line. The 
dorsal vessel is faintly edged with white, which gives the appearance 
of two faint subdorsal stripes. This, however, is- hardly descernible in 
some specimens. All the feet are concolorous with venter as before. 
The larve increased rapidly in size in this stage. 
Stage IV.—Length 21mm. Head 2.3 mm, wide, round, lobes full, 
pale green, shghtly lighter towards vertex; about same size as segment 
2, ocelli black, mouth parts and antennz whitish, the tips of the man- 
dibles being blackish-brown. Body pale green, a little darker 
than head. The pulsating dorsal vessel is more distinct than 
in last stage. The white edging of the same is also more 
distinct and appears like a faint subdorsal stripe. The lateral band is 
wide and pale yellow. The stripe between the lateral band and the stig- 
matal stripe is conspicuous but broken. The stigmatal stripe is very 
distinct on all segments. Spiracles reddish-brown. The body bears 
small whitish piliferous dots. All the feet are concolorous with body, 
and bear, sparsely, short whitish hairs; claspers of prolegs whitish. As 
the stage advances the stigmatal stripe becomes the most prominent 
marking on the body. ; 
Stage V.—Length 27 mm. Head, thoracic segments and 
last segment a little smaller than the rest of the body. General 
colour deep bluish green washed with white, which is more pronounced 
on the dorsal area, and more so in some specimens than in others. 
Ventral surface deep green with a purplish reflection. Head 3.5 mm. 
wide, concolorous with body, the front white, and the cheeks coarsely 
reticulated with white. These white markings aggregate into a 
Y-shaped mark above the clypeus, the limbs of which spread out on 
each side over the vertex. Mandibles milky white tipped with black; 
antenn white with the base yellow, and lying at the extreme end of 
the substigmatal line, which runs forward along the lower side of the 
face, to the base of antennæ. Body cylindrical, the skin very delicate 
and translucent showing plainly the dorsal vessel and contents of the 
