132 ACIDALTIA EMARGINATA. 
ground of the dorsal surface, and is freckled with 
brown. 
The larvae began to spin loose cocoons in the 
corners at the bottom of the cage on the 21st June. 
The pupa is about three- eighths of an inch long, 
smooth and shining; the colour reddish-yellow, with 
the wing-cases greenish. 
The first imago appeared on the loth July, and 
was speedily followed by the remainder. (George 
Tl. Porritt, May ord, S/o Hin Ne a iumeneltoaos 
XIII, 18.) : 
CABERA EXANTHEMATA. 
Plate CXX, fig. 3. 
There is such a meagre description of the larva of 
this insect in Newman’s British Moths that I think 
I shall not be open to the charge of repetition in 
giving a more complete one. 
Female specimens taken in the middle of June, 1870, 
deposited eges, which hatched in about ten days; the 
larvee fed on sallow, and were full-grown at the end of 
July. 
- When the markings were noticeable it became 
apparent that there were two distinct TEIREMUG, which 
may be described as follows: 
Var. 1.—Length about an inch, of average thickness 
and uniformly cylindrical thr oughout. Head a little: 
broader than the second segment, slightly flattened 
and not notched on the crown. Skin rather puckered ; 
eround colour heht green, of different shades in dif- 
ferent individuals. Head of the same colour, marked 
near the crown and on the lower part of the cheeks 
with deep purple. A narrow green pulsating vessel 
forms the medio-dorsal line, and dorsally, on each 
segment, from the fourth to the eleventh inclusive, is a 
conspicuous purple arrow-head mark, the apex of each 
being close to the posterior part of the segment; the 
apex of each of these marks encloses a black spot 
