Oct. 17th) 8.30 a.m. 
The green 
larva has changed skin 
some hours, and is now 
a dark variety. The two 
dark larve in the rest- 
ing-period were 35°75 
mm. in length when 
contracted, and 38:5 
mm. when extended. 
just changed skin. 
8.30a.m. 2 larve have 
changed skin, the green 
one being among them. 
The last larva in rest- 
ing-period is the light- 
est of the dark varieties. 
It is 43:0 mm. in length 
when thoroughly ex- 
tended. 
544 Notes in 1887 upon lepidopterous larve, éc. 
Dates. Division I. Division II. Division ITI. 
OGt. LGU) Wee kiielertereie slat etatetetorearers 4.15 p.m. 1 larva had| Morning. 1 dark larva 
had changed skin some 
little time. 
3 p.m. Another larva 
just changed skin. 
10.40 p.m. Another has 
changed some few 
hours. 
The green larva in rest- 
ing-period is 36°5 mm. 
long, being rather 
small; the other 40°5 
mm. when contracted, 
43-3 mm, when ex- 
tended. 
8.15 p.m. The latter 
has nearly changed its 
skin. 
12.30 noon. 1 of them 
is changing its skin. 
8.15 p.m. The last has 
almost finished chang- 
ing skin. 
steraisieraraicteis 10.25 a.m. The last 
larva was changing its 
skin: at 10.35 a.m. the 
change was complete, 
and the appearance of 
the 6th abdominal seg- 
ment was painted by 
11.45am. (Pl. XVI, 
| fig. 12 x 7). 
Oct. 18th 1.40 p.m. The green 
larva changed its skin, 
eeeeerereees 
Stage V.—AIl the larve became dark varieties in this 
stage. Immediately after change of skin the colour had 
not darkened into its permanent shade. Thus the head 
was yellow and green. The dorsal prothoracic plate, 
the anal flap and horn, were the lightest parts of the 
larva, immediately after ecdysis. It is probable that 
this is due to the protection afforded by the thickness or 
density of the cuticle over these parts, including the 
head. The darkening of the larva being due to the 
action of the air, it is probable that these parts alone 
would be completely protected from it until after ecdysis 
had taken place. 
The shagreen tubercles of the previous stage are very 
distinct before the colours have darkened, appearing as 
white circular areas, surrounded by a rather deeper 
shade of ground colour, each containing a dark point in 
