DIORYMERELLUS. 
bo 
Or 
Os 
The Central-American species may be grouped thus :— 
Elytra each with one (sutural) stria . woe ee we ww ws) Levipennis. 
es % four dorsal striae . . eee ee we ew we) «OCtostriatus. 
ro * five ,, Pe Se ee ew ee ee we «6 decemstriatus. 
” 3 six % - . . « + 12-striatus, castaneicolor, rubripennis, histeroides. 
1. Diorymerellus levipennis, sp. n. (Tab. XIV. figg. 9, 9a.) 
Short-ovate, rather broad, shining, black, the elytra rufous; glabrous, Head sparsely, minutely punctate, 
transversely grooved between the eyes; rostrum strongly arcuate, moderately stout, about as long as 
the prothorax, very sparsely, minutely punctate, the antenne inserted at the middle, the antennal club 
ovate. Prothorax transverse, strongly constricted in front, the sides arcuately converging from the base 
and forming an almost continuous outline with those of the elytra, the surface with very minute 
scattered punctures. Scutellum subquadrate. LElytra broad, slightly depressed along the suture, the 
sutural and the two marginal strie only distinct, the others indicated by faintly impressed lines, 
the interstices smooth and flat. Beneath sparsely, coarsely punctate, the propleura and intermediate 
ventral segments almost smooth. Prosternum with a broad deep transverse excavation, which extends 
backward to the base. Anterior coxe separated by their own width. Tarsal claws minnte, narrowly 
separated. 
Length 3, breadth 2 millim. 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. The comparatively small prothorax, the almost smooth, rufous 
elytra, with the sutural stria only distinct above, and the broadly and deeply excavate 
prosternum, distinguish D. levipennis. 
2. Diorymerellus octostriatus, sp. n. 
Rhomboidal, narrow, convex, shining, the antennez ferruginous at the base; glabrous above, the under surface 
and legs with scattered minute whitish scales, Head closely punctate, unimpressed between the eyes ; 
_rostrum stout, strongly arcuate, about as long as the prothorax, closely punctate ; antennal club oblong- 
ovate. Prothorax transverse, conical, constricted in front, with extremely minute scattered punctures 
and a row of coarser punctures along the apical constriction. Scutellum subquadrate. Elytra much 
wider than the prothorax, triangular; each elytron with four obsoletely punctured sharply-cut strie on 
the disc and two marginal ones beneath, the fifth reduced to a short deep stria at the base, the others 
obsolete or indicated by faintly-impressed fine lines, the interstices flat. Beneath closely, the ventral 
segments 1-4 very sparsely and finely, punctate, the first segment sulcate down the middie, Prosternum 
with a deep subtriangular excavation, Femora shallowly sulcate beneath, ‘Tarsal claws very small, 
subconnate at the base. | 
“Length 2, breadth 1, millim. (¢.) 
Hab. Guatema.a, Coban in Vera Paz (Champion). 
One specimen. A little more elongate than D. decemstriatus, the fifth elytral stria 
reduced to a short line at the base, the rostrum more strongly arcuate. ‘The elytra 
are narrower than in D. castaneicolor. 
3. Diorymerellus decemstriatus, sp. n. 
Rhomboidal, narrow, shining, black; glabrous, above and beneath. Head finely punctate, foveate between 
the eyes; rostrum cylindrical, moderately curved, rather slender, reaching to near the apex of the 
metasternum, very sparsely, minutely punctate, the punctures coarser at the sides, the antenne inserted 
