XENOSOMUS. 469 
XENOSOMUS. 
Xenosomus, Faust, Stett. ent. Zeit. 1896, pp. 44, 50. 
Two species from within our limits agree in several respects with the type of this genus, 
Acalles gonoderus, Chevr., from the island of Guadeloupe ; but they differ from it, and 
from XY. chevrolati, Faust, from Venezuela, in having the eyes much more widely 
separated, the antenne inserted towards the apex of the rostrum, the second joint 
of the funiculus not longer than the first, and the femora unarmed. The ventral 
segments 2-4 are subequal in length, 1 and 2 being subconnate in the Central- 
American forms. The elytra are subrotundate, and at the base not wider than the 
prothorax. 
1. Xenosomus inflatus, sp.n. (Tab. XXIII. figg. 5, 5a, 2.) 
Oblong-ovate, opaque, black, the antennw and tarsi reddish; densely clothed with brown scales, the upper 
surface with a few scattered decumbent sete intermixed, the legs setulose. Head and rostrum densely, 
rugulosely punctate, the antenne inserted towards the apex of the latter, joints 1 and 2 of the funiculus 
subequal in length, 3-7 short, the club ovate. Prothorax broader than long, constricted and abruptly 
narrowed in front and also narrowed behind, the anterior portion tubulate, the base almost straight ; 
densely, very finely punctate, the disc depressed down the middle behind. LElytra not wider than the 
prothorax at the base, somewhat globose, with the apex produced ; seriate-punctate and faintly granulate, 
each elytron with numerous rounded prominences on the disc, these being scattered along the interstices 
2-7, and becoming smaller towards the sides. Femora unarmed. 
Length 54, breadth 3;45 millim. (<d.) 
Hab. Guatemaa, San Gerdnimo (Champion). 
One specimen. The subglobose, nodulose elytra, the transverse, strongly constricted 
prothorax, the unarmed femora, and the rugose rostrum, separate X. inflatus from the 
species of the allied genera. 
2. Xenosomus turpis, sp. n. | 
Oblong-ovate, subopaque, black, the antenne and tarsi ferruginous; somewhat thickly clothed with brown 
scales, which become more condensed on the head, and also set with scattered, decumbent, blunt, 
similarly-coloured setee. Head and rostrum densely, rugulosely punctate, the antenne inserted towards 
the apex of the latter, joints 1 and 2 of the funiculus subequal in length, 3-7 short, the club ovate. 
Prothorax a little broader than long, rapidly narrowing from the middle forwards and also slightly 
narrowed behind, the base subtruncate; closely, finely punctate, the disc shallowly depressed down the 
middle and also transversely depressed anteriorly. LElytra not wider than the prothorax at the base, 
somewhat gibbous, subrotundate, with the apex produced ; seriate-punctate and sparsely granulate, the 
interstices on the disc here and there nodose, the elevations at the commencement of the apical declivity 
(on 2, 3, 4, and 6) placed in a transverse line. Femora unarmed. 
Length 64, breadth 33 millim. (d.) 
Hab. Guatemaa, Cerro Zunil 4000 feet (Champion). 
One specimen. Near X. inflatus, but larger; the prothorax less constricted in 
front; the elytra less globose and more feebly nodose, the elevations at the commence- 
ment of the apical declivity so arranged as to form a transverse series. 
