22 
seen to project (Fig. 2). Besides these unsightly masses of castings, 
the presence of the caterpillars causes an exudation of pitch, which 
clings in large drops or tears to the 
outside of the adjacent more or less 
healthy cones. Where much affected 
the young cones turn brown and sere. 
The same worms had also attacked 
the terminal branches and twigs of 
the same tree, eating off the leaves 
and leaving a mass of excrement on 
one side of the twig, within which 
they had spun a silken gallery in 
which the worm lived. 
On removing the bunches of dis- 
eased cones to Providence, one cater- 
pillar transformed in a warm cham- 
ber into a moth, which appeared the 
end of October; its metamorphosis 
was probably accelerated by the un- 
usually warm autumnal weather. All 
the others had by the 1st of Novem- 
ber spun within the mass of castings 
a loose, thin, but firm, oval cocoon, 
about half an inch long and a quar- 
ter inch wide, but the larvae had not 
yet begun to change to chrysalids. 
Whether in a state of nature they 
winter over in the larval state within their cocoons, or, as is more 
likely, change to pupae in the autumn, appearing as moths by the end 
of spring, remains to be seen. 
The chrysalis is of the usual Phycid appearance, rather slender, but 
with the abdominal tip blunt, with no well-marked cremaster or spine, 
though ending in the usual six curved stiff bristles, by means of which 
it hooks onto the walls of its cocoon, thus maintaining itself in its nat- 
ural position. 
I only found one tree next to the house thus affected 
by this worm. It is probable that in a dense spruce 
growth the trees would be less exposed to the attacks of 
what may prove a serious enemy of shade spruces. The 
obvious remedy is, to burn the affected cones and mass 
of castings late in summer. 
Descriptive. — Larva. (Fig. 3.)— Of the usual Phycid form; the 
head aud pro thoracic shield deep amber-brown ; the body reddish 
carneous or amber-brown, with a livid hue; a faint, dark, dorsal, 
aud a broader, subdorsal line; piliferous warts distinct; each 
segment divided into a longer anterior and shorter, narrower, pos- Fig. 3.— Spruce 
terior section, bearing two dorsal piliferous warts, besides a lateral {^gecT original) n " 
one. Length 16 mm . 
