Notes in 1887 upon lepidopterous larve, dc. 548 
dorsal plate became very conspicuous, the cuticle around 
it being thrown into wrinkles from the strain to which 
it was exposed, while the denser and thicker plate was 
able to resist the strain. Its appearance is shown in 
Plate XVI., fig. 11x 7. The plate, being darker in 
colour and without wrinkles, is very prominent against 
the surrounding cuticle. 
The 6th larva of Division III. was mature in Stage III. 
on Oct. 8th; on Oct. 10th it had entered the resting- 
period ; on Oct. 12th (4.30 p.m.) it had just changed its 
skin. The larva was that known as (8) in the division 
of 10 pale larve of the 2nd stage (see comparison at 
end of 3rd stage). It is represented, in the 3rd stage, 
on Plate XV., fig. 12. This larva died on Oct. 16th: it 
was apparently a very dark variety, but was not suffi- 
ciently advanced in the 4th stage for a safe comparison 
with the other dark larve. 
Data as to the 4th change of skin and the lengths of 
the larve are given below :— 
Dates. Division I. 
Oct.10th| 11 p.m. 3 largest larve 
in resting-period ; 40:0, 
40-25, and 42:5 mm. in 
length. 
2 of the larve are more 
extended, reaching a 
length of 41:25 and 
45:0 mm. 
Oct. 11th 
Oct. 12th 
is now in 
ao resting- 
period. 
Oct. 13th} 9.15a.m. 1 dark variety 
has just changed skin ; 
the other 5 all in rest- 
ing-period. 
Hvening : same. 
Morning : same. 
5.30 p.m. Another dark 
variety was changing | 
its skin. 
5.30 p.m. A dark larva 
just changed skin. 
Oct. 14th 
Oct. 15th 
Division II. 
9p.m. The green variety | 2 larvein resting-period, 
including the green 
variety; latter 39:0 mm. 
when not much ex- 
tended; former 43:0 
mm. 
Morning : 1 more in rest- 
ing-period. 
Evening : same. 
Morning: same. 
Evening. The last larva 
in resting-period. 
Division III. 
1 larva in resting-period, 
39°25 mm. in length, 
but not greatly ex- 
tended. 
2 more in resting-period. 
Morning. 4 larve now 
in resting-period: the 
green variety the only 
one still feeding. 
Same. 
Evening. The green 
variety is now in rest- 
ing-period. 
