9 
CENTRINITES. 323 
4. Centrinites dissipatus, sp. n. 
Rhomboidal, rather narrow, shining, piceous, the tarsi ferruginous; very sparsely clothed with narrow 
ochreous scales, which are intermixed with darker ones on the elytra, the ochreous scales clustered into 
a short streak at the apex of the second interstice and becoming more crowded on the front of the 
prosternum and on the metathoracic episterna. Head, rostrum, and antenne as in C. T-flavum. 
Prothorax transverse, conical, constricted in front ; densely, confluently punctate, the narrow interspaces 
oblique and rugiform, Elytra triangular, sharply punctate-striate, the interstices asperato-punctate. 
Beneath closely punctate, the propleura obliquely strigose; first ventral segment depressed down the 
middle, Prosternum armed in front of each coxa with a short downwardly-directed spine or conical 
tubercle, and also deeply sulcate. Anterior tibiee hollowed towards the apex within and with a long 
terminal claw, the other tibie also strongly unguiculate. 
Length 33-4, breadth 2 millim. (d-) 
Hab. Guatemara, Zapote, San Juan in Vera Paz (Champion). 
Two males, the one from Zapote (with the longer prosternal spines) being taken as 
the type. This insect, at first sight, looks like a worn C. T-flavum, but the prothorax 
is subconical, the elytra are shining, and the legs are less rugose; the anterior tibie, 
moreover, are hollowed within in the male, and the other tibie are neither dilated 
nor toothed in this sex. The decussate mandibles, &c., separate C. dissipatus trom 
Gereus tetrastigma and its allies. 
5. Centrinites dentimanus, sp.n. (Tab. XVII. fizg. 4, 4a, 6, 3.) 
Rhomboidal, narrow, nigro-piceous or piceous; sparsely clothed with rather coarse, narrow, setiform, inter- 
mixed whitish and fuscous scales, which are placed in a single series down each elytral interstice, the 
prothorax with similar, transversely-arranged, ochreous scales ; the vestiture of the under surface and 
legs closer and wholly whitish. Head closely punctate, obsoletely foveate between the eyes; rostrum 
very stout, strongly arcuate, longer than the head and prothorax, coarsely punctate and feebly tricarinate, 
the antenne inserted at a little beyond the middle, the antennal club ovate. Prothorax transverse, 
subconical, constricted in front; densely, confluently punctate, the narrow interspaces oblique and 
rugiform. Elytra subtriangular, with the humeri oblique in front and almost in a line with the sides of 
the prothorax; sharply punctate-striate, the interstices roughly uniseriate-punctate. Beneath closely 
punctate; first ventral segment broadly depressed along the middle and the fifth obsoletely foveate. 
Prosternum shallowly sulcate, unarmed. Anterior cox narrowly separated. Anterior tibie (fig. + 5) 
armed with a sharp triangular tooth on the inner edge beyond the middle. 
Length 24, breadth 12 millim. (¢.) 
Hab. Mexico, Teapa (H. H. Smith). 
Two males. Distinguishable amongst its allies by the sharply toothed anterior 
tibie, the stout, strongly arcuate rostrum, and the intermixed whitish and fuscous, 
setiform, uniseriately-arranged elytral vestiture. The only other Central-American 
Centrinid with similarly-armed anterior tibie is Gerwus bipustulatus. 
6. Centrinites uniseriatus, sp. n. 
Elliptic, piceous, the antennx and tarsi ferruginous in one specimen; the elytra clothed with intermixed 
ochreous and fuscous, decumbent, setiform scales, which are arranged in a single series along each 
interstice, the prothorax with longer hair-like scales ; the vestiture of the under surface fine and rather 
sparse. Head closely punctate, transversely grooved between the eyes; rostrum arcuate, considerably 
longer than the head and prothorax, slender, thickened and closely punctate at the base, widened and 
2TT2 
