62 ROYAL SOCIETY OF CANADA 
indistinct, stigmatal stripe. Feet concolorous with body, rather 
translucent. , 
The young larve preparatory to moulting, spin a platform of silk, 
upon which they rest until they have cast their skins. 
Stage IJI—Length 8 mm. Head 0.8 mm. wide, whitish; mouth 
parts slightly reddish; hairs on face pale. Body pale green as in last 
stage; skin translucent. Tubercles white, each with a single stiff hair. 
Dorsal and lateral stripes as in Stage IT; besides there is an inter- 
rupted lower lateral stripe, half way between the stigmatal band, which 
is wide and white, and the lateral stripe. Spiracles yellowish, slightly 
higher than, and anterior to, tubercle iv. Feet all concolorous with 
venter. 
Stage IV.—Length 10.5 mm. Head 1.2 mm. wide. The larvæ in 
this stage do not show any differences from Stage III. The dorsal 
stripe is white and even. The lateral stripe and the lower lateral stripe 
half way to the stigmatal band, are both broken, in fact, the latter is 
simply a series of white spots along the side. The stigmatal band is 
wide and the most conspicuous marking on the body. 
Stage V.—Length 20 mm. Head 2.0 mm. wide. The only. differ- 
ence between the larvæ in this stage and Stage IV is that there is now 
an additional stripe of dark green bordering thé upper edge of the stig- 
matal band. Claspers of prolegs reddish-brown. 
Stage VI.—The larve in this stage are altogether different from the 
previous stages. Length at first 26 mm. Head 2.8 to 3.0 mm. wide, 
rather quadrate, only slightly. depressed at vertex of median suture; 
ground colour whitish, or greenish white, with grayish brown markings ; 
ocelli back. Body cylindrical, segments even; general colour, greenish 
gray varying to grayish-brown. Dorsal stripe pale orange-yellow, 
distinct on all segments, margined on either side with very dark green. 
Lateral stripe same as dorsal stripe but fainter. Stigmatal band pale 
cream, uneven, bordered rather heavily above, and lighter below, with 
very dark green. Spiracles white, rimmed with black, touching (almost 
included in) upper dark margin of stigmatal band. Ventral surface 
of body green. Comprising nearly the whole central part of thoracic 
shield is a dark green or blackish square, remainder of shield green. 
Tubercles white. The whole skin of body is covered with short streaks 
or dashes of dark green or black. In some specimens the skin, between 
the lateral stripe and the stigmatal band, has a pale reddish or orange 
tinge. On dorsum of each of segments 12 and 13, there is a U-shaped 
mark of dark green. All the feet concolorous with venter, claspers of 
prolegs darkened. Anal feet extended and marked with dark green 
exteriorly. 
