124 
THE entomologist’s RECORD. 
dorsally a large creamy wedge-shaped area, stretching forwards 
from the nth segment so as to enclose the posterior trape- 
zoidals which form a black patch. The nth segment is 
creamy, with a dark marbling on the same area that is white on 
the lOth segment, and a faint dark marbled streak below. 
The 1 2th segment is marbled in this way throughout, except 
a creamy dorsal line and the two great black double humps 
formed by the trapezoidals and the smaller points of the 
supra-spiracular. Segments 13 and 14 are white with a trace 
of black marbling. Anal prolegs blackish ; the under surface 
is creamy white on n, 12, 13 and 14, fuscous elsewhere. 
The 2nd segment has a plate carrying, or corresponding to, 
(apparently) 6 trapezoidal tubercles, of which 2 pairs carry 
spatula-ended bristles, and are apparently anterior trapezoidals, 
though on the other segments it is the posterior trapezoidals 
that carry the longest bristles representing the grand ones of 
the last skin. The trapezoidals mark out an elevated angular 
dorsal area, almost to be called a hump, and most marked in 
5th, 6th, 7th, 8th and gth segments. In the 4th skin, the 
length, when extended, is 16-17 mm., but it usually sits in the 
form of a note of interrogation with the head curved round 
against the gth segment, the bending taking place in the 5th 
and 6th and gth and loth segments. It eats the leaf irregu- 
larly in small rounded patches, giving a jagged outline and a 
ragged appearance to the leaf. 
The head is sometimes entirely black, but usually has the 
upper portion buff with darker tesselations. The segments, 
from the 2nd to the gth, are black with a white porcellanous 
lateral line fading upwards, a trace of white dorsal line, best 
marked in 2, 3 and 4. Segments 3 and 4 are rather paler, with 
a sub-trapezoidal whitish line, and other portions buff-coloured. 
Traces of a sub-trapezoidal line may elsewhere be observed in 
incisions; ii is creamy porcellanous, invaded laterally and 
behind from 12 with fuscous, this segment is flatter and 
broader than the others ; 12 is large and humped, with a 
creamy white dorsal line and other markings, but the tubercles 
are large, dark rufo-fuscous, and have fuscous clouds about 
them, the anterior trapezoidal with short hairs, the posterior 
with larger faintly clavate ; 13 and 14 are creamy, 13 with two 
clavate hairs on posterior trapezoidals, 10 is dark fuscous, 
invaded behind by creamy, up to trapezoidals, and below them 
just to front of segment, joined by a white line between the 
trapezoidals ; there is also a white dot at the base of the hair 
