178 HETEROMERA. 
and strongly-bowed anterior tibie distinguish the male of X. atricolor from the same 
sex of X. laticeps. The palpi and tarsi are entirely testaceous. ‘The sexual differences 
in the form of the antenne are similar to those of X. cinctipennis and X. equinoctialis. 
16. Xylophilus funereus. 
Moderately elongate, rather broad, convex, subparallel, black, shining, thickly clothed with long, semierect, ashy 
pubescence. Head moderately large, closely and finely punctured ; eyes (¢ ) very hairy, large, somewhat 
narrowly separated, moderately emarginate, not very coarsely granulated, the head narrowly extended 
on either side behind them and with rather prominent hind angles; palpi piceous-brown; antenne (<¢) 
moderately long, rather slender, black, joint 2 a little shorter than 3, 3-10 increasing a little in width, 
10 about as broad as long, 11 stouter than, and about twice as long as, 10, ovate, acuminate ; prothorax a 
little broader than long, not much narrower than the head, the sides rounded and narrowing in front, 
almost straight behind, the surface thickly and somewhat coarsely punctured; elytra convex, much broader 
than the prothorax, moderately long, subparallel in their basal half, very shallowly obliquely depressed 
on either side at the base, thickly and rather coarsely punctured; legs ( ¢) rather long, black, the apical 
joints of the tarsi testaceous, the hind femora moderately clavate, the anterior tibiz feebly sinuous within 
and with a short tooth at the inner apical angle. 
Length 23-23 millim. (¢.) 
Hab. Guatemata, Quiche Mountains 8000 feet, Cerro Zunil 4000 feet, Chiacam 
(Champion). 
One male example from each locality. More parallel, more elongate, and larger 
than the same sex of X. atricolor; the eyes a little more widely separated, the apical 
joint of the antenne shorter, the tarsi and palpi darker, the anterior tibiee very feebly 
curved and with the tooth at the inner apical angle shorter and finer. ‘The slender 
antenne and much narrower head distinguish it from X. laticeps. The Quiche 
specimen is immature, and has the basal joints of the antenne and the front tibie 
fusco-testaceous. X. ater, Lec., from Texas, is probably a close ally of this species; 
Leconte’s description is, however, too brief for identification, the form of the head and 
legs not being mentioned. 
17. Xylophilus flavicornis. 
Rather short, subparallel, black, shining, thickly clothed with long, semierect, ashy pubescence. Head thickly 
and finely punctured; eyes (2) hairy, very large, very coarsely granulated, rather narrowly separated, 
feebly emarginate, the head very narrowly extended on either side behind them; palpi testaceous; 
antenns ( 2 ) moderately slender, short, testaceous, the basal joint infuscate, joint 2 globose, a little shorter 
than 3, 3 longer than 4, 4-10 transverse, 11 stouter than, and more than twice as long as, 10, ovate, 
acuminate ; prothorax convex, narrower than the head, about as long as broad, the sides rounded and 
converging in front, almost straight behind, the surface thickly and somewhat coarsely punctured ; elytra 
much wider than the prothorax, rather short, subparallel in their basal half, thickly and coarsely punc- 
tured ; legs rather short, testaceous, the hind femora infuscate and moderately incrassate. 
Length 14 millim. (9.) 
Hab. Mexico, Atoyac in Vera Cruz (H. H. Smith). 
One female example. The much smaller size and the testaceous antenne and legs 
(the hind femora excepted) distinguish X. flavicornis from X. atricolor and X. funereus. 
