1867.] 11 
for months after it has become full fed, may be kept indoors all the 
winter, and bred freely the following spring. A. Ffeiferella, although 
it turns to a pupa a few days after it is full fed, is yet very difficult to 
breed when kept indoors. 
This little larva, a few days after it has constructed and completely 
finished its oral case, turns to a pupa about 3|"' in length ; this is at 
first quite white, its head being decorated with eight little bristles 
(setse). By the end of September the eyes of the pupa turn quite 
black, the head and wing-cases become pale brown, and the extremity 
of the abdomen assumes a dull reddish-brown hue. During the month 
of October the anterior portion of the antennae begin to turn black. 
In December, the antennse slowly assume a darker tint, the legs like- 
wise become clouded with darkish tints, the abdomen white, and, curious 
to relate, the dull reddish-brown hue, which first made its appearance 
at the extremity of the anal segment, now begins to flow up along the 
back of the abdominal segments ; a day or so afterwards, the dorsal 
surface of the third and fourth abdominal segments becomes darkish, 
the dull reddish-brown fluid which a little time before slowly crept up 
the centre of the dorsal surface of the abdominal segments, now slowly 
spreads itself over the back of those segments, and, in so doing, imparts 
a pale brownish tinge to them. About the middle of the month the 
tips of the wing-cases become somewhat clouded with dark brown, in 
some cases one wing becomes clouded at its tip before the other ; the 
back of the third and fourth abdominal segments lose somewhat of their 
previous clouded appearance; the pupa then occasionally exhibits signs 
of life by slowly moving its abdomen up and down. When three parts 
of the month of December have expired, the tips of the pupa's wings 
change their colour from dark brown to black, or, at least, appear to 
be so, as seen through the puparium. By the end of the month the 
wings, which have been faintly deepening in colour, exhibit slight 
indications of the first formation of their markings, for, in the exact 
locality of the markings on the wings of the imago, we perceive certain 
little triangular-shaped brownish coloured spots, several shades darker 
than the general tone of the wings ; after some days (in others weeks 
expire before there is any change) , these little pigmentary spots assume 
a golden hue. At this period of its economy, the back of the thorax 
is light brown, the dorsal surface of the first, second, and third 
abdominal segments having become whitish, the remaining abdominal 
segments, excepting the anal, being tinged with pale brown ; the anal 
segment itself having a brownish tint. Near the latter end of January 
the back of the pupa's first abdominal segment becomes somewhat 
