XYLOPHILUS. 175 
sex of Y. Jacertosus) and in the female are much shorter and still more thickened 
outwardly. The unique male example is unfortunately imperfect, the hind Jegs being 
missing. The only Central-American species nearly allied to it is the following. 
10. Xylophilus curvipes. (Tab. VIII. figg. 10, ¢; 10a, hind leg.) 
Moderately elongate, parallel, robust, opaque, very thickly clothed with rather long, fine, semierect pubescence ; 
black, the base of the elytra fulvo-testaceous, the rest of the elytra uniformly clothed with greyish 
pubescence. Head large, densely and roughly punctured; eyes (¢) hairy, very large, approximate, 
coarsely granulated, deeply emarginate, the head extended on either side behind them and rounded 
externally ; palpi piceous ; antenne ( ¢) black, the apical joint ferruginous at the tip, densely pubescent, 
very stout, extending to beyond the middle of the elytra, filiform, joint 2 only a little shorter than 3, 
3-8 about equal in length, 9 and 10 transverse, 11 fully three times as long as 10, slightly curved ; pro- 
thorax narrower than the head, rather convex, as long as broad, the sides rounded and converging in 
front, straight behind, the surface punctured like that of the head; elytra parallel in their basal half, 
moderately broad, densely and coarsely punctured ; legs ( ¢ ) moderately long, rather slender, piceous, the 
knees and the base of the femora reddish-testaceous, the tarsi (except the apical half of the first joint of 
the hind pair) flavo-testaceous ; the hind femora broadly widened, grooved on the inner side, the concavity 
filled with short fulvous hairs; the tibiee a little curved, the intermediate pair strongly so without, and 
abruptly sinuate within, the anterior pair furnished on the inner side at the apex with a long sharp spur. 
Length 23 millim. (¢.) 
Hab. Guatemata, San Gerénimo (Champion). 
One male example. Smaller and narrower than X. humeralis; the antenne shorter 
and not nearly so stout in the male (the third joint not shorter than the fourth and the 
penultimate joints transverse); the elytra with the entire base fulvous, and for the rest 
uniformly pubescent (without trace of a sublateral greyish-pubescent stripe). The 
usual oblique depression on each elytron is scarcely indicated. 
Leconte’s brief description of X. basalis, from Illinois, agrees in many respects with 
this insect. In X. basalis, however, the ninth and tenth joints of the antenne are 
longer (transverse in X. curvipes) and the eleventh is shorter (as long as the two 
preceding united in X. basalis, nearly as long as the three preceding in X. curvipes); 
the palpi are rufous (piceous in XY. curvipes); and the elytra, apparently, have the base 
more broadly fulvous. Leconte’s type of X. basalis had all the legs broken off; but 
from the form of the antenne it was no doubt a male. 
11. Xylophilus flavitarsis. (Tab. VIII. fig. 11, ¢.) 
Rather short, subparallel, comparatively broad and robust, opaque, thickly clothed with fine, semierect pubescence; 
black, the pubescence along the edge of the suture from the apex nearly to the base ashy, a transverse 
band of similarly-coloured pubescence (not reaching the suture, and becoming wider outwardly and 
extending to the lateral margin) at about the middle of the elytra, the pubescence at the sides of the pro- 
thorax also ashy in tint. Head moderately large, densely and finely punctured; eyes (9) hairy, rather 
large, coarsely granulated, deeply emarginate, separated by a space about equalling half the diameter of 
the eyes as seen from above, the head broadly extended on either side behind them and rounded externally ; 
antenne (9 ) black, the apical joint ferruginous at the tip, densely pubescent, exceedingly stout, widening 
outwardly, reaching a little beyond the middle of the elytra, joints 2 and 3 subequal, 3-7 longer than 
broad, 8 as broad as long, 9 and 10 transverse, 11 ovate and nearly twice as long as 10; prothorax 
narrower than the head, rather convex, as long as broad, the sides rounded and converging in front, 
