18 APPLE-TRUNK BORER THE BEETLE. 



lower lip (labial palpi) are also perceptible, forming a conical two-jointed pro- 

 cess of a chestnut color, inside of each lower jaw. The antennae are also rep- 

 resented 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 oyer the remainder of th& 

 body, more densely in 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 destitute 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 the tenth, is a trans- 

 verse wart-like elevation, divided into two parts by a strongly impressed lon- 

 gitudinal line. Along each side the spiracles or breathing pores form 

 a row of nine chestnut brown dots, situated upon the second, the fifth 

 and each of the following segments; and immediately below these is an 

 elevated longitudinal ridge, which is interrupted at the joints. Beneath, 

 as above, is a transverse wart like hump on the middle of each seg- 

 ment 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 frc-m 0.17 to 0.25 in width, the males 

 being smaller and much more slender than the females. It is covered with 

 dense appressed milk-white pubescence, 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 com- 

 mence 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 narrowed to a point posteriorly, and does 

 not reach the apex of the suture. The outer stripes are narrower on the tho- 

 rax, and occupy the outer half of each etytrum, and are edged exteriorly 

 at their tips with white. The white portions of the surface are clothed with 

 fine white hairs, which on the face are interspersed with black bristles arising 

 from fine black punctures. The head has an impressed black line in its mid- 

 dle, upon which in the center of the face is a brown spot, which is round, kid- 

 ney-shaped or like the letter V. In the females this spot is sometimes want- 

 ing, or is replaced by two faint dots. The mouth is black, with the labrum or 

 upper lip and the bases of the mandibles clothed with white appressed hairs. 

 The eyes are coal black. The antennas are inserted upon a short broad promi- 

 nence 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 



