456 . SUPPLEMENT. 
9 (a). Xylophilus mexicanus. (Tab. XXI. fig. 6, ¢.) 
3d. Elongate, parallel, broad, robust, opaque, black, the elytra with a reddish-testaceous humeral patch; the 
upper surface thickly clothed with long, fine, semierect, greyish pubescence. Head very densely, finely 
punctate, somewhat broadly extended on either side behind the eyes, the latter very large, coarsely 
granulated, hairy, and rather narrowly separated ; antenne black, very hairy, exceedingly stout, almost 
uniform in thickness, extending to beyond the middle of the elytra, joint 2 short, about half the length 
of 1 and considerably shorter than 3, 3-11 more or less elongate, 3-8 increasing in length, 9 and 10 
a little shorter, 11 cylindrical, exceedingly elongate, three times as long as 10; prothorax narrower 
than the head, as long as broad, the sides parallel behind and a little rounded in front, the disc feebly 
obliquely depressed on either side of the middle at the base, the surface very densely, finely punctate ; 
elytra nearly twice as wide as, and about four times the length of, the prothorax, parallel to far beyond 
the middle, densely, coarsely punctate; legs black, rather stout; anterior and intermediate tibic 
abruptly bowed inwards at about one-third from the apex, the anterior pair armed with a long sharp 
tooth at the inner apical angle; hind tibie slightly curved ; intermediate femora thickened on the inner 
side towards the tip; hind femora broadly widened, grooved along the inner side, the concavity filled 
with short fulvous hairs, 
Length 33 millim. 
Hab. Mexico, Tlalpam (flohr). 
Mr. Flohr informs me that he has only been able to secure three specimens of this 
fine species as yet, two males and one female. The description is taken from one of 
the former. The female, he says, is larger and more robust, and has shorter and 
stouter antenne, and straighter tibie. X. mexicanus is allied to X. humeralis and 
X,. curvipes; but it is much larger and very much more elongate, the eyes are less 
approximate (in ¢ ), the upper surface is more coarsely punctured, &c. The antenne 
resemble those of X. humeralis (3), but their apical joint is still more elongate. 
This is one of several species of Xylophilus occurring on oaks at Tlalpam, eleven 
miles from the city of Mexico. 
15 (a). Xylophilus flavipalpis. (Tab. XXI. fig. 7, ¢.) 
3. Rather short and robust, pitchy-black, shining, somewhat thickly clothed with long, moderately coarse, 
ashy pubescence ; the antenne pitchy-brown at the base, becoming testaceous towards the tip, the legs 
brownish-piceous, with the tarsi entirely flavo-testaceous, the palpi yellow; the entire upper surface 
densely punctured, the punctures coarse on the elytra, finer on the head and prothorax, not hidden by 
the pubescence. Head very large, rather narrowly extended on either side behind the eyes, the latter 
hairy, exceedingly large and narrowly separated ; antennee very hairy, moderately stout, not extending 
to the middle of the elytra, joint 3 longer than 2, 3-10 about equal in length and increasing slightly in 
width, longer than broad, 11 twice as long as 10, stout, ovate, obliquely acuminate ; prothorax convex, 
nearly as long as broad, distinctly wider at the base than at the apex, the sides straight, feebly rounded 
in front, the disc feebly, transversely depressed on either side before the middle; elytra rather short, 
more than twice as wide as the prothorax, gradually narrowing from about the middle, the disc with a 
shallow oblique groove extending from the shoulders inwards, the suture depressed at the base ; legs very 
hairy, moderately long ; the anterior and posterior femora very stout, the intermediate pair moderately 
so, the hind pair unarmed ; anterior tibia sinuous within, slightly bowed inwards at the tip, and armed 
with a long sharp tooth at the inner apical angle. 
Length 23 millim. 
Hab. Mexico, Jalapa (Flohr). 
