RHYPARONOTUS. 91 
§ 2. Rostrum constricted at the base. 
2. Rhyparonotus vermiculatus, sp. n. 
Elongate-ovate, narrow, black, the antenne and tarsi obscurely rufescent, the surface coated with an earthy 
incrustation ; the sete extremely short, the femora with a few longer ones beneath. Rostrum strongly 
constricted at the base, stout, curved, nearly as long as the prothorax, rugosely punctured and shallowly, 
longitudinally sulcate; scape reaching the anterior margin of the eye. Prothorax much longer than 
broad, widest at the middle, more narrowed in front than behind, constricted before the apex ; the surface 
irregularly rugose, the rug: here and there confluent and forming sinuous or oblique ridges, and some- 
times shallowly grooved down the middle. Elytra oblong-oval, about twice as long as the prothorax, 
flattened on the disc, with the apex broadly produced and conjointly rounded (truncate as viewed from 
above), the humeri rather prominent, the basal margin raised ; coarsely seriate-punctate, the interstices 
2 and 4 subcarinate, 5 and 6 also a little raised, 2,4, 6 each with a row of prominent, rounded, setigerous 
tubercles beyond the middle, the tubercles large on the apical declivity and represented by a scattered 
series of minute shining granules on the anterior half. Ventral surface very sparsely, finely punctate. 
Tibie finely denticulate on their inner edge. Anterior coxee somewhat widely separated. 
Length 74-8, breadth 24-3 millim. (<¢.) 
Hab. Costa Rica, Volcan de Irazu (Rogers), Volcan de Turrialba (Biolley). 
Three specimens. Distinguishable by its narrow form, the strongly constricted 
rostrum, the finely punctured ventral surface, and the extremely short sete of the upper 
surface. The prothorax in one example has the vermiculate sculpture interrupted at 
the middle by a narrow groove. 
8. Rhyparonotus inermis, sp. n. (Tab. VI. fig. 18, 2.) 
Elongate-ovate, piceous, the surface coated with an earthy incrustation; the sete rather long and erect. 
Rostrum constricted at the base, very stout, strongly curved, about as long as the prothorax, granulate 
and trisulcate in its basal half and somewhat sparsely punctured at the tip ; scape reaching the anterior 
margin of the eye. Prothorax slightly longer than broad, gradually widening from the base to near the 
apex and then abruptly narrowed and constricted ; the surface, except down the middle and along a 
sinuous space on each side midway between this and the margin, sparsely granulate, with intermixed 
sinuous ruge. Elytra oval, about twice as long as the prothorax, sharply margined at the base, the apex 
broadly produced and conjointly rounded ; seriato-foveate, the interstices 2, 4, and 6 more or less costate, 
2 sharply so on the apical declivity, each set with scattered rounded or oblong setigerous elevations, 
which become more numerous and very prominent towards the apex. Ventral surface very sparsely, 
finely punctate. Anterior cox rather narrowly separated. Tibie almost smooth on their inner edge. 
Length 73, breadth 3 millim. ( 9.) 
Hab. Nicaracua, Chontales (Belt). 
One specimen. Allied to FR. vermiculatus, but broader, with the rostrum more 
curved, the prothorax shorter, less rugose, and widest before the middle, the second 
elytral interstice much more raised towards the apex, the anterior coxe more 
approximate, the tibie not denticulate on their inner edge, the sete on the upper 
surface slightly longer. 
NN 2 
