378 
JVfiif' York State Agricultural Society. 
This insect is of a dingy brown color, its abdomen dull pale yel¬ 
low, and its legs and the forceps of the male yellowish white. Its 
wings are hyaline but not clear and glassy. They have a tinge of 
umber brown, the fore pair perceptibly deeper tinged with this color 
than the hind pair. 
The male is larger and his body more robust than the female, measuring 0.40 in 
length to the end of its tail-like appendages, and to the end of the forceps 0.G5. The 
forceps are joined to the body obliquely on each side of its end, their entire length 
being 0.32, which is also the length of the body forward of their base. The extended 
wings of the male are 1.20 from tip to tip. The female is 0.30 long and 0.95 wide 
across its extended wings. The dimensions of the Doubleday specimen are given as 
0.35 in length and 1.05 in width. 
The head is almost totally hid beneath the thorax. When viewed on the under 
side it is more long than wide, its outline is oval, flattened and turned backward 
horizontally, with the mouth pressed upon the breast and reaching a little beyond 
the base of the first pair of legs. Its sides are occupied by the eyes, which in the 
female almost meet together on the vertex or crown of the head, being parted asun¬ 
der merely by a slender elevated ridge, which has an impressed line along its summit. 
In the male they are more widely separated, the vertex or space between them being 
more long than .vide and narrowing forward, where it is also grooved along the mid¬ 
dle. In both sexes the vertex is black without any glossiness. In front the circular 
space between the eyes is smooth and shining, black in the male and chestnut brown 
in the female. The face below the eyes is dull whitish and glossy, the surface 
slightly uneven from three faint transverse elevations, which are parted asunder by 
shallow impressed parallel lines. Below this the upper lip is prolonged downward, 
and viewed in front with a common magnifier, appears like a cone twice as long as 
thick and gradually tapered to a sharp point. The jaws have on their outer side a 
dense tuft of yellow hairs, in which their tips are hid from view. The feelers are 
small, reaching only to the end of the jaws. They arc dull whitish, thread-like and 
five-jointed, the joints little longer than thick, the last one oval. To Mr. Westwood 
the last joint appeared to be formed of two rings. He found the upper jaws to end 
in two sharp curved teeth, and inside of these a third obtuse one ; the lower jaws 
two-lobed, their tips conic, and the lower lip nearly square, its anterior angles 
rounded and fringed with hairs, and furnished with a pair of short, two-jointed feel¬ 
ers. The eyes are coal black, their surface finely granular. They arc slender, 
kidney-shaped, four times as long as thick, their lower part narrower than the upper. 
No simple eyes are perceptible in either sex. The antenna arise in the lower part of 
the notch of the eyes, and are almost in contact at their base. They are alike in the two 
sexes, short and thick, about half the length of the body in the female and a little more 
than a third its length in the male, thickest forward of the middle, and gradually 
tapering in both directions, toward their tips becoming very slender. They are dark 
dingy brown in the male, pale brown in the female, the basal joint pale dull yellow. 
They are composed of thirty joints, which are about as long as thick, and are distinctly 
separated by contractions between them. The basal joint is thick, its diameter simi¬ 
lar to that of the thickest middle joints, and rounded at its summit. The second 
joint is small, but half as thick as the first. The third joint is slightly longer than 
thick, and gradually widens from its base to its apex. The following joints increase 
very gradually in thickness to about the eighth joint, from which to the twelfth they 
do not perceptibly differ in size, and beyond this they begin to diminish. 
