678 
ANNUAL REPORT OF NEW YORK 
VAPORER MOTH. MALE MOTH. FEMALE. 
slightly upon the base of the third abdominal segment, whilst tho wing-shoafchs terminate at the 
suture at the anterior edge of this segment. These wing-sheaths are very faint and almost obli¬ 
terated towards their tips, whilst their basal portion is moro developed and is frequently marked 
with black lines on thoir edges and pale brownish lines upon the veins. The abdomen is white 
with a tinge of green, with tho sutures, or at least the anterior ones, marked by a black line. The 
breathing pores form a row of oval black dots along each sido, and a short distance above them 
the wholo back is overspread with black, or varies in having broad black bands with the anterior 
portion of tho sogmenta white or on the fore part of the back tawny yellowish. The back 13 
thinly covered with long white hairs, and on the sid^s and beneath are clusters of punctures form 
ing round spots from which similar hairs radiate, these spots being placed in four longitudinal! 
rows upon each side, the upper row above the breathing pores and the other three bolow, tho 
lower spots smaller and with the hairs fewer and shorter. The tip of the body is black. 
The Male Chrysalis differs notably from the female. It is a third smaller, 
glossy, and of a pale tarnished yellow color with the back black and clothed 
with long while hairs, thus differing from the European antiquei, which, accord¬ 
ing to Gudnee, is black and bristly with reddish yellow hairs. It has the 
thorax much larger than it is in the female chrysalis, and the sheaths of the 
wings and legs are vastly more developed and larger, reaching two-thirds of 
the total length. On each of the three anterior segments of the back is an 
oval transverse spot, formed by short projecting crinkled scales of au ash gray 
color, which spots do not oepur in the female chrysalis. 
The moths come out from their cocoons in nine days, making their appear¬ 
ance about the middle of July. The caterpillars which are to become females 
feed longer and the moths are later in coining from their cocoons than the 
males. I have known male moths to come abroad before the last female cater¬ 
pillars of the same brood bad coYnmenced forming their cocoons. 
The Male has the fore wings rust color or dull tawny yellow, largely clouded with blackish 
brown, which color forms a broad curved band extending across thq wing forward of its middle, 
this band through the inner half of its length being forked or double, with the anterior fork 
broader. Beyond the middle a much broader wavy band crosses the wing, having upon its innor 
end a snow white spot shaped like a orescent, forward of which is a curved streak separated from 
tho band except at its inner end. The outer part of this band is narrowed into a straight black 
streak, which extends obliquely forward and outward to the outer margin. And back of this is ft 
brown cloud on the outer margin, reaching to the apex, forward of which it is out asundor by an 
obliquo grayish streak, a similar streak separating it anteriorly from the outer end of the brown 
band. A dusky cloud in the center of tho wing extends lengthwise from one band to tho other, 
and on its outer side is a paler rusty yellow spot, very faint, crescent-shaped, and margined by a • 
brown line, which is more or less broken and irregular. The base of the wing is also brown on its 
outer side. Tho fringe is brown with a rusty alternation at the end of each of the veins. Tho 
hind wings are rusty brown, their fringe with very faint paler alternations towards tho outer side. 
On the under side the wings are paler rusty yellow, and brownish on tho outor sido of the forward 
pair. The body is coated with hairs and tho abdomen with scales of a smoky brown color. Tho 
latter has faint paler bands at the anterior sutures and a tuft of short black hairs on the back 
near its base. It is gray beneath and clothed with short rust colored hairs along the sides and 
longer brown ones at the tip. Tho broadly pectinated antennas havo tho stalk gray and tho 
branches blackish. My specimens of this moth measure 1.15 across tho spread wings. 
The Ff,male Moth is wholly unlike the. male in her color and form, and 
being destitute of wings she appears more like a short thick-bodied hairy 
worm than like a mature insect. When she comes out from the cocoon she 
is half an inch in length and half as thick, being broadest slightly forward 
of the middle. Her stein is black upon the back and dull greenish white 
upon the sides and underneath, and is coated over with short fine soft hairs 
