406 RHYNCHOPHORA. 
rapidly narrowing from the base, strongly constricted in front; very coarsely, confluently punctate, the 
raised interspaces forming stout, sinuous, longitudinal ruge, the median carina rather broad and sharply 
defined. Elytra oblong, rounded-triangular, transversely depressed on the disc before the middle, deeply 
striate, the inner interstices each with a row of coarse scattered punctures, the outer ones sharply raised 
and coarsely crenate-punctate. 
Length 34, breadth 14 millim. ( 9.) 
Hab. Nicaragua, Managua (Solari). 
One specimen. Differs from all its allies in. the subconical, extremely rugose 
prothorax, the coarse puncturing of the elytral interstices, and the very sparse 
vestiture, which is not condensed into patches on the elytra. 
4, Glyptobaris lecontei, n.n. (Tab. XX. fig. 13, 2, var.) 
Onychobaris rugicollis, Lec. Proc. Am. Phil. Soc. xv. p. 297° (nec Kirsch). 
Glyptobaris rugicollis, Casey, Ann. N. York Acad. Sci. vi. p. 520 *, 
Hab. Norra America, Middle, Eastern, and Southern Atlantic States '?.—MeExico, 
Almolonga in Puebla and Jalapa in Vera Cruz (Hoge). 
Two females received from Mexico are a little larger than the specimens I have 
seen of Leconte’s 0. rugicollis, and have the prothorax more coarsely sculptured, and 
the elytral vestiture somewhat closer and coarser; but, to judge from the variation 
observed in G. rugata, they cannot be treated as a separate species. 
5. Glyptobaris simplex, sp.n. (Tab. XX. figg. 14, 14a, ¢.) 
Oblong-ovate, moderately shining, nigro-piceous or black, the tarsi and antenne ferruginous; the basal half 
of the elytra closely variegated with coarse, and the rest of the upper surface with scattered, oblong 
ochreous scales, the under surface and legs sparsely setulose. Head sparsely punctate, deeply trans- 
versely grooved between the eyes ; rostrum strongly arcuate, a little longer than the head and prothorax, 
very stout, tapering towards the tip, coarsely, closely punctate, smooth at the apex, without basal carina. 
Prothorax strongly rounded at the sides anteriorly, constricted in front, the sides parallel at the base ; 
closely impressed with coarse, rounded punctures, which on the disc are separate one from another. 
Elytra oblong-subtriangular, flattened, finely striate, the interstices confusedly punctate on the disc, 
uniseriate-punctate and obsoletely costate at the sides. Beneath coarsely and closely, the median 
portion of the abdomen very sparsely and finely, punctate. Basal process of the prosternum armed with 
two compressed tubercles in the 3. 
Length 4-41, breadth 18-23 millim. (d @.) 
Hab. Guatemaa, Coban (Conradt: 3 ), Capetillo (Champion: @ ). 
Two examples. Recognizable by the non-carinate and regularly punctured disc 
of the prothorax. 
RHYTIDOBARIS, gen. nov. 
Mandibles short, notched within, decussate ; rostrum arcuate, moderately long, the antenne inserted at or a 
little behind the middle, the antennal club ovate, small; prothorax bisinuate at the base; scutellum 
small, transverse, free, concave ; elytra oblong-subcordate, slightly wider than the prothorax, the humeri 
_ obtuse, leaving the upper portion of the mesothoracic epimera exposed; pygidium vertical, exposed ; 
prosternum flattened, with two parallel impressed lines anteriorly (A. horrida), or broadly and shallowly 
