722 [Assembly 
form of a short roundish process at the inner base of the feelers. The feelers of the- 
lower lip (labial palpi), are also perceptible, forming a conical two-jointed process 
of a chestnut color, inside of each lower jaw. The antennae are also represented by 
a small jointed, projecting point, near the outer angles of the head, so minute that 
we should little suspect it would become developed into the long horn which we find 
in the winged beetle. Scattered over the remainder of the body, more densely its 
particular places, are numerous short brown hairs. The second segment is larger 
than any of the others, as shown in the following cut; its upper side slopes obliquely 
downwards and forwards, and is occupied by a large smooth spot of a pale tawny- 
yellow color, the posterior part of which is covered with brown points; beneath is a 
smaller transverse space, occupied by similar points, but with a band destitute of 
them running across its middle, and on each side is a pale tawny yellow spot desti¬ 
tute of these brown points. The third and fourth segments are shorter than the 
following ones. On the top of the fourth and each of the succeeding segments, to 
to the tenth, is a transverse wart-like elevation, divided into two parts by a strongly 
impressed loneitudinal line. Along each side the spiracles or breathing 
pores form a row of nine chestnut brown dots, situated upon the second, tho 
fifth and each of the following segments; and immediately below these is an 
elevated longitudinal ridge, which is intermpttd at the joints. Beneath, as 
above, is a transverse wart-tike hump on the middle of each scgrqcnt from 
the fourth to the tenth, with a faint longitudinal impression across its 
middle. There are thirteen segments in all, separated from each other by 
strong constrictions. The last one of these is double, or appears like two 
segments, its posterior portion being but half as broad as the anterior, into 
which it is deeply sunk. 
The perfect insect or beetle measures from slightly over one-half to plump three- 
fourths of an inch in length, and from 0 17 to 0.25 in width, the mates being smaller 
and much more slender than the females. It. is covered with dense appressed 
milk-white p bescence, and above are three broad stripes, formed by short appressed 
hairs, of an umber or butternut brown color, not a fuscous brown, as is stated in 
some of the descriptions. These stripes commence upon the base of the head and 
extend the whole length of the body. Both upon the thorax and the elytra 
they are coarsely punctured, each puncture yielding a short black nearly erect 
bristle. The middle stripe embraces the suture of the elytra, is gradually nar¬ 
rowed to a point posteriorly, and does not reach the apex of the suture. The outer 
stripes are narrower on the thorax, and occupy the outer half of each elytrum,. 
and are edged exteriorly at their tips with white. The white portions of the sur¬ 
face are- clothed with fine white hairs, which on the face are interspersed with black 
bristles arising from tine black punctures. The head has an impressed black line in 
its middle, upon which in the center of the face is a brown spot, which is round', 
kidney-shaped, or like the letter V. In the females this spot is sometimes wanting, 
or is replaced by two faint dAts. The mouth is black, with the lahrum or upper lip 
and the bases of the mandibles clothed with white appressed hairs. The eyes are 
coal black. The antennae are inserted upon a short broad prominence which arises 
in the notch of the eyes. They are slightly longer than the body in the males, and 
shorter in the females. They are composed of eleven joints, whereof the second 
one is quite short and all the others long and cylindrical, the basal one being mucih 
