160 
The pupa rests in a cavity in the live wood, there being no attempt at forming a 
cocoon. (See Pl. X, fig. 3, giving a lateral view of the pupa.) 
Adult (Pl. X, fig. 4.)..-The adult both in form and in size appears very much 
like the willow weevil, Cryptorrhynchus lapathi Linn., of the United States, except 
that there are no tubercles on the thorax and wing covers. It measures 11 
millimeters in length (exclusive of the bill, which normally is doubled under the 
body) and is 5.5 millimeters in its greatest breadth. (Pl. X, fig. 4.) It is of a 
dark-reddish brown, somewhat mottled with gray on the forward part of the 
thorax, which is very closely punctured. The head is globular and fits almost 
entirely into a cavity in the front of the thorax, so that, when seen from above, 
it has the form of a thin crescent. The eyes are black and somewhat oval, nearly 
meeting on the front of the head, the space between being one-fourth the width 
of the rostrum or bill. When the inseet is at rest the antenne, which are 
inserted on each side of the rostrum near its base, are completely hidden, being 
drawn within the cavity in which the head fits. They are geniculate, the apical 
part or flagellum being somewhat more than half the length of the bill, very 
slender at its base, and increasing in size toward the club-shaped apex, which 
has three segments very closely united. There are 12 segments in the antenme, 
of which 11 are in the flagellum. (PI. X, fig. 2.) The surface of the 3 apical 
ones is very pilose and of a sensitive nature. The rostrum is smooth, closely 
punctured, and slightly broadened at its apex. The mandibles are plainly visible, 
slightly darker than the rostrum, and uniting at their apices to form a triangle. 
The part immediately above the mandibles is covered with strong, light-brown 
bristles, pointing toward the tip of the rostrum. The thorax bears a longitudinal 
depression which is light-gray in color, owing to the seales on the surface, and 
which extends nearly to the posterior margin, where the depression becomes a 
ridge or carina one-sixth the length of the thorax. 
The elytra reach nearly to the tip of the abdomen, are very rough, and are 
traversed longitudinally by nine rows of punctures forming very deep grooves; 
six of these extend to the apex of the wing covers, the others being interrupted 
or running into each other, The external (ninth) row terminates before the 
middle of the elytron, ‘The posterior portion of the proplure shows a decided 
depression, into which the front legs fit on each side. 
The legs are moderately long and very stout, the fore pair being nearly a half 
longer than the other two. The rostrum reaches beyond the insertion of the first 
pair; there is a transverse carina of the mesosternum against which it rests. Two 
spines are situated on the under sides of the femora near their apices, the smaller 
nearer the apex, and those on the forelegs larger than those of the middle and 
hind pairs. The tibie are all of the same shape, each bearing a curved spine or 
tooth and 3 bristles at its apex; the latter are external. 
The tarsi are 4-jointed, the fourth being very small and hidden between the 
pulvilli or pads. The tarsal claw is bifurcated, very long and slender. The 
tarsi are covered with long, blunt, silvery-white scale-like hairs. 
The exposed part of the pygidium, or hinder segment of the abdomen, is bluntly, 
almost emarginately rounded; the apical half is covered with golden-brown bris- 
tles lying flat. The last ventral abdominal segment is hairy apically. The beetles 
appear to present no external sexual characters. 
Remedies and preventives.—Doubtless these insects would be susceptible 
to the same general treatment as that given to the Asiatic palm weevil, 
although too little is known of their habits to be certain. They have 
been found in all stages, generally in diseased trees or in those debilitated 
by the attacks of other insects, and hence should not form a serious 
menace, 
