164 
other refuse-destroying insects and mites, it is probable that few of the shells 
would remain after the young grubs had emerged. Doubtless some of the mites 
feed upon the eggs themselves and in this way serve to limit the number of the 
beetles. 
Larva.—tThe larva is of about the same general shape as that of the shot-hole 
coconut weevil, but it is more slender in proportion to its length. The length is 
7 millimeters and the width 2.5 millimeters. The color is a pale-cream, the head 
being somewhat darker and the mouth parts dark-brown. The head bears 
numerous scattered, golden-brown bristles. The posterior margin of the labium 
is rounded, with a sharp angle at the median line. The ventral surface of the 
first thoracic segment is microscopically and densely spinose-tuberculated, as are 
also certain transverse areas on the ventrum and dorsum of the middle abdominal 
segments. The spiracles are extremely minute, somewhat slender, and pyriform, 
with lines radiating from the central slit to the margin. The upper, posterior 
surface of the last abdominal segment is slightly excavated, with 10 rather fine 
bristles; it is of a golden-brown on its margin. The larve feed in well-defined 
burrows or galleries slightly isolated from each other. 
Pupa.—tThe length of the pupa is 5.5 millimeters and the width at the middle 
1.75 millimetets. It is cream-colored and in general shape like the pupa of the 
shot-hole coconut weevil. Golden-brown spinose hairs are arranged as follows: 
Two pairs, very small, on the rostrum above the antenne, 2 larger ones in front of 
the eyes, 2 still larger ones on the top of the head back of the eyes, 8 pairs sym- 
metrically on the prothorax, 7 on the meso- and metathorax, respectively, 2 on 
each abdominal segment from the first to the sixth, 1 on the seventh, 1 at the base 
of the pygydium, and 1 on the ventral apical margin of the last abdominal seg- 
ment, pointing downward. Each femur is provided at the outer apical angle 
with a single erect spinose hair. The spiracles are hardly visible. 
Adult.—The general color of the beetle is dark-brown, with rufous patches. 
The head is globular and strongly punctured. The eyes are black and broadly 
crescent-shaped, contiguous beneath the head, but separated above by a narrow 
shallow sulcus at the base of the rostrum. The rostrum is slender, subeylindrical, 
slightly swollen laterally at the base above the insertion of the antenne, and 
coarsely punctured, each of these punctures as well as all others upon the surface 
of the body containing a single club-shaped hair or bristle. (Pl. X, fig. 6.) The 
mouth parts are extremely minute. The mandibles are tridentate, and when 
closed are almost completely hidden within the mouth cavity. A narrow longi- 
tudinal sulcus is situated on each side of the mentum, into which fit the maxillary 
palpi. The antenne are 8-jointed and of the same length as the rostrum; the 
first joint is slightly shorter than the other seven, the last is double the diameter 
of the preceding one and its distal half is silvery-pubescent with sensitive hairs. 
The thorax is truneately conical and its anterior and posterior margins straight 
and parallel, the former having a narrow, smooth collar, back of which are nu- 
merous setigerous pits or punctures. It is coarsely and deeply punctured, with 
an indistinet rufous spot on each side. The scutellum is subtriangular and ex- 
cavated at its middle. Each elytron is marked by 2 reddish-subquadrate spots, 
one at the base and the other beyond the middle, and is traversed longitudinally 
by 5 very finely punctured ridges or carine. Between every 2 carine there is 
a double row of very regular, coarse, deep punctures. The apex of each elytron 
is rather sharply rounded, the pygidium is subtriangular, and its sides and median 
line are carinated and rather densely setose, the sete springing from fine punc- 
tures. It is very easily depressed; in some specimens it forms an angle of nearly 
90° with the remainder of the abdomen. The legs are stout, moderately long, 
and the pairs about equidistant from each other and from the 2 extremities of 
the body, roughly dividing the latter into 4 subequal sections, if the rostrum 
