118 RHYNCHOPHORA. 
9, Sternechus bifasciatus, sp.n. (Tab. VII. figg. 26, 26 a, 4.) 
Subelliptic, broad, robust, moderately shining, black; the upper surface somewhat thickly clothed with minute, 
piliform, fuscous scales, the elytra with two straight, narrow fasciee of closely-placed whitish scales—one 
before, the other beyond the middle; the under surface and legs with piliform whitish scales. Head 
closely punctate, deeply foveate between the eyes, which are rather narrowly separated ; rostrum short 
and stout, very sparsely, finely punctate. Prothorax strongly transverse, rounded at the sides, narrowing 
almost from the base and constricted in front, slightly emarginate in the centre at the apex, the lateral 
margins feebly crenulate; the surface closely, rather finely punctate, with indications of a raised, smooth, 
median line. Elytra broad, subcordate, gibbous, conjointly rounded at the apex, the humeri rounded and 
moderately swollen, the infra-humeral prominence reduced to a rounded callosity ; seriate-punctate, the 
interstices closely, rugulosely punctate. Beneath somewhat closely punctate. Anterior femora obsoletely 
dentate, the others unarmed ; tibie finely setose along their inner edge. 
Length 11-12, breadth 675-63 millim. 
Hab. Mexico, Playa Vicente (Sa//é). 
Two specimens. 
10. Sternechus tuberculatus. (Tab. VII. figg. 27, 27 a, b.) 
Sternechus tuberculatus, Boh. in Schénh. Gen. Cure. iii. p. 474°; vil. 2, p. 363°. 
Sternechus costatus, Sturm, in litt.” 
Hab. Mexico (Sallé, ex Sturm), Guadalajara (Hoge), Toxpam, Playa Vicente, 
Orizaba, Parada (Sallé), Oaxaca (coll. Sommer*); British Honpuras, Rio Hondo 
(Blancaneaua); Guatemata, Cerro Zunil (Champion).—Gutana, Cayenne? *. 
We have received nine specimens of this species from within our limits, these 
agreeing very nearly with the only one I have seen from Cayenne. Distinguishable by 
the rugose upper surface and legs, the sparse piliform squamosity, the very prominent, 
conical, lateral tubercles of the elytra, and the bi- or trituberculate lateral margins of 
the prothorax. The femora are unarmed. ‘The tibie are denticulate on their inner 
edge, with one longer tooth before the middle. Length 95-14, breadth 53-8 millim. 
11. Sternechus nitidus, sp. n. 
Subelliptic, bronze-black, shining, clothed with very minute, scattered, hair-like scales, the legs sparsely 
pubescent. Head and rostrum closely punctate, the latter stout and nearly as long as the prothorax, 
the eyes rather narrowly separated. Prothorax broader than long, narrowing from about the middle 
and constricted in front, the lateral margins (as seen from above) crenate; the surface closely punctate, 
with a narrow smooth space down the middle. LElytra subcordate, very convex, conjointly rounded at 
the apex, the humeri obliquely subtruncate and swollen, the infra~-humeral prominence long and bluntly 
conical; seriate-punctate, the interspaces as wide as the punctures, faintly, transversely wrinkled, and 
minutely punctate. Femora unarmed; tibie with an acute tooth at the middle and another at the apex, 
the inner edge denticulate between them. 
Length 7, breadth 33 millim. 
Hab. Panama, Bugaba (Champion). 
One specimen. Very similar to S. spenipes, but with a shorter rostrum, the punc- 
tuation of the prothorax and elytra less coarse, the humeri not so prominent, the 
femora unarmed, the surface with a bronzy lustre. 
