498 
ANNUAL REPORT OF NEW-YORK 
The moths are short, stout, thick-bodied, densely coated with 
long soft hairs, the males dark gray or almost black, the females 
white and a third larger. Both sexes have a singular crest upon 
the hind part of the thorax, formed of long curved scales which 
are glistening and resin-like, of an auburn brown color, arranged 
like the hairs of a moustache and jutting up from the surround¬ 
ing prostrate hairs, forming a large tuft or protuberant oblong 
spot, broadest posteriorly and narrowing to its anterior end. 
The scales of this crest are of a peculiar form, being slender and 
hair-like with their ends dilated into an oval flattened knob, 
their shape thus resembling that of a spoon. When they are at 
rest these moths appear like excrescences upon the limb on 
which they repose, so exactly do they adjust themselves to it, 
their wings being held together in the shape of a roof, with their 
lower edges pressed firmly against the sides of the branch, and 
their white fore feet stretched forward resembling pitch which 
has exuded from a wound and running downward has dried in 
white streaks upon the bark. 
The males (plate 2, fig. 5) measure 0.60 in length to the tip of the abdomen 
and of the wings, and one inch across the latter when they are spread. The 
head is densely clothed with white hairs in front and with blackish ones upon 
each side around the eyes. The feelers are minute and are wholly enveloped 
and concealed by long fine hairs, their ends forming a slight projection like the 
point of a camel’s hair pencil. These hairs are blackish on their outer sides 
and ash-gray within. The antennae are short, about a third of the length of 
the body, and are abruptly bent near their middle (as shown in the magnified 
fig. 5 a ,) or with the ends straight in both directions from the crook near their 
middle, when they present the shape of an inverted V. They are furnished 
with two rows of coarse branches, which are long from the base to the crook, 
where they are abruptly shortened to half their previous length, and continue 
thence to gradually diminish in length to their tips. Each branch has a row 
of very fine hairs along one side, resembling eye lashes. The mouth has only 
the minute rudiments of a spiral tongue, and this not coiled as we see it in 
moths generally. The thorax is clothed with long hairs of a dark gray color, 
those at its anterior end white, and on its posterior part is the oblong crest of 
glossy spoon-shaped scales previously mentioned. The abdomen tapers slight¬ 
ly from its base to the tip and is clothed with blackish hairs above, whitish 
ones beneath, its apex having a dense tuft of long pure white ones. The wings 
are quite small for such a thick-bodied heavy moth. They are semi-trans¬ 
parent, being thinly covered with brown scales which are commonly denuded, 
the wings then appearing perfectly transparent like glass. Their veins nro 
robust and white with darker irregular bands. The hind margins of both 
pairs of wings are entire and not in the least toothed or scalloped. When at 
rest they are pressed against the sides of the abdomen, in the form of a steep 
