216 RHYNCHOPHORA. 
8. Diorymerus punctatus, sp.n. (Lab. XI. figg. 17, 174.) 
Ovate, shining, black, obscure castaneous above. Head closely punctate, foveate between the eyes; rostrum 
curved, rather slender, a little longer than the prothorax, thickly punctate, the antennz inserted at about 
the basal third. Prothorax closely punctate, except along a narrow space down the middle, the base 
slightly depressed on each side of the median lobe. Seutellum small, subquadrate. Elytra sharply 
striate throughout, the strie with scattered fine punctures, the interstices sparsely, very distinctly 
punctate, the suture somewhat depressed. Beneath, the ventral segments 2-4 excepted, closely, coarsely 
punctate, the punctures on the flanks large and rounded. Legs short, stout, closely punctate ; femora 
sulcate and unarmed beneath; anterior tibia dentate on the outer edge near the apex ; intermediate and 
posterior tibiee broadly dilated and acutely dentate near the base externally. 
Length 3, breadth 2 millim. (<¢ ?) 
Hab. Panama, Bugaba (Champion). 
One specimen. Distinguishable from the other small allied forms by the closely 
punctured prothorax and the distinctly punctate elytral interstices. ‘The anterior tibie 
are dentate near the apex externally, and the others are broadly dilated and have an 
inwardly-curved tooth on the outer edge near the base. 
9. Diorymerus latus, sp.n. (Lab. XII. figg. 18, 18a.) 
Short, broad, subrhomboidal, shining, black. Head closely punctate, unimpressed in front; rostrum short, 
moderately stout, feebly curved, slightly thickened towards the base, longitudinally rugulose. Prothorax 
punctured along the basal margin only, the base depressed on each side of the median lobe. Scutellum 
closely punctate, trapezoidal. Elytra subtriangular, strongly depressed along the suture to the apex, 
sharply striate, the striae feebly punctate, the humeri smooth. Beneath (the ventral segments 2-4 
excepted) coarsely punctate. Metasternum broadly and deeply excavate posteriorly. Legs short and 
stout ; femora coarsely punctate, sulcate and unarmed beneath; tibie broad, the intermediate and 
posterior pairs hollowed on the inner side towards the apex and dentate externally near the base, the 
anterior pair angulate on the outer edge near the base. 
Length 32, breadth 24 millim. (¢ ”) 
Hab. Mexico, Sierra de Durango (Speyer, in coll. Solari). 
A single specimen, in Signor A. Solari’s collection. A short, broad, robust form, 
with deeply striate elytra, the suture strongly depressed, the rostrum short, the head 
closely punctate, &c. D. datus is shorter and broader than D. serripes and the tibie 
are not denticulate on their inner edge. 
10. Diorymerus exaratus, sp.n. (Tab. XII. figg. 19, 19 a.) 
Ovate, shining, black. Head finely punctate, transversely depressed between the eyes; rostrum very stout, 
short, abruptly curved downward at the base, thickly punctate. Prothorax with the sides forming a 
continuous outline with those of the elytra, strongly constricted in front, almost smooth, the base 
depressed on each side of the median lobe. Scutellum small, subquadrate. Elytra triangular, produced 
at the apex, deeply striate throughout, the strie feebly punctate, the interstices smooth, the suture 
slightly depressed. Beneath sparsely punctate. Femora sulcate and unarmed beneath. Tibie almost 
straight, each sharply angulate near the base externally. 
Length 23, breadth 13 millim. (¢.) 
Hab. Panama, Bugaba (Champion). 
One specimen. The deeply striate elytra, the simply sulcate femora, and the sharply 
angulate tibie separate this small species from most of its allies. 
