36 THE ENTOMOLOGIST. 
very considerably shorter and more conical than in the former 
stage. “Parva componere magnis,’—the new-skinned larva 
reminded me of one of the rays of Uraster glacialis, for the cone- 
shaped tubercles. In a few minutes, however, I was conscious of 
a change in their form; they were evidently lengthening, by the 
protrusion of their points, into tall and slender columns. As 
these grew, insensibly, yet rapidly, the extremities were thrown 
into angles and curves, which presently were gradually straight- 
ened: just as we see the wings of an imago, on emersion from 
pupa, expanded, not uniformly, but very irregularly, one side at 
a time, through which the fluids are pouring; while, in the parts 
immediately near, they are, for the moment, inactive. The result 
is, to distort, and bend, and crumple, one portion at the expense 
of another, till this in its turn receives its supply, and presently 
straightens. So with these crooked tubercles: they were crooked 
because (minutely slender as they were) the expanding fluids were 
pouring through a portion of their diameter at a time: but, as I 
have said, all was equalized in due course, and every tubercle 
became a very tall and slender cylinder with an expanding base 
and a slightly clavate summit; and the symmetry of all was | 
perfect, before an hour had passed from the beginning of the 
moult. So long were they now become (viz. about equal to the 
diameter of the body) that the impression produced on the 
unassisted eye was that we looked on a very hairy caterpillar ; 
though, really, there were no hairs, but a few excessively short 
bristles at the clubbed tip of each tubercle, so minute as to be 
detected only with high magnifying. 
LARVA.—2nd age. 
The larva of the second age, a few hours after its moult, may be thus 
described. Dorsal portion of the body white, mottled on the sides with 
neutral-tint and cream-colour: a large irregular patch of rust-red on each 
side on the third and fourth segments, and another of the same hue, still 
larger, on the ninth, tenth, and eleventh. Ventral surface black. Tubercles 
white; except the lowest series of the three thoracic, and the penultimate 
segments, which are dark grey. Head polished chestnut-brown. Prolegs 
grey. 
The next day after the moult, the whole larva is clothed with 
a white farina, very thick and clogged, similar to that of Attacus 
Cynthia, but much denser. It seems to be exuded only from the 
