DIORYMERUS. 219 
16. Diorymerus quadristriatus, sp.n. (Tab. XII. fig. 24.) 
Subovate, shining, black. Head very minutely punctate, transversely depressed between the eyes; rostrum 
short, exceedingly stout, strongly arcuate, finely punctate. Prothorax with excessively minute scattered 
punctures, those on the anterior lobe more distinct, the base unimpressed. Scutellum small, transverse. 
Elytra slightly depressed along the suture, the first and second strie sharply defined, the others (the two 
marginal ones excepted) fine or obsolete, the inner and outer strive faintly punctate. Beneath coarsely 
(the sides sparsely) punctate, the ventral segments 2-5 much smoother. Legs short and stout; femora 
closely punctate, suleate and unarmed beneath; tibie straight, each sharply angulate externally near 
the base. 
Length 13-2, breadth 1,4-14 millim. 
Hab. Guatremata, Zapote (Champion); Panama, Volcan de Chiriqui (Champion). 
Three specimens. A minute form, with the two inner strie of the elytra sharply 
defined and the others (the marginal ones excepted) faint or obsolete, the rostrum 
short and exceedingly stout, and all the tibie sharply angulate externally. 
17. Diorymerus bistriatus, sp. n. 
Ovate, shining, black, the prothorax rufo-piceous. Head sparsely, very minutely punctate, transversely 
depressed between the eyes; rostrum short, stout, strongly arcuate, finely punctate and striolate. 
Prothorax smooth. Scutellum small, subquadrate. Elytra depressed along the suture, with a sharply- 
defined sutural stria only, the others (the marginal ones excepted) obliterated. Beneath (the ventral 
segments 2-5 excepted) coarsely punctate, the propleura in great part smooth. Legs short and stout, 
closely punctate; femora sulcate and unarmed beneath; anterior tibia sinuous, the others straight, all 
sharply angulate near the base externally. 
Length 23, breadth 13 millim. (3?) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. Broader than D. longirostris, the rostrum short and stout, the 
elytra wider below the base and depressed along the suture, the legs stouter, 
the anterior tibia not so straight. Narrower than D. perlevis, the rostrum shorter 
and not so stout, the prothorax unimpressed at the base, the elytra not depressed 
along the suture and with a sharply-defined sutural stria, the tibie all sharply 
angulate externally. 
18. Diorymerus longirostris, sp.n. (Tab. XII. figg. 25, 25a.) 
Ovate, narrow, very convex, shining, black. Head finely punctate, transversely depressed between the eyes ; 
rostrum comparatively slender, longer than the prothorax, abruptly bent down ward near the base, finely 
punctate, smoother beyond the middle, the antenne inserted at about the basal third. Prothorax almost 
smooth, feebly constricted in front, unimpressed at the base. Scutellum small, oblong-subquadrate. 
Elytra with a sharply-defined sutural stria only, the others (the marginal one excepted) obliterated, the 
humeri not prominent and forming a continuous outline with the sides of the prothorax. Propleura 
smooth, the meso- and metapleura, and first ventral segment, very coarsely punctate. Femora finely 
punctate, sulcate and unarmed beneath. Tibie almost straight, all sharply angulate near the base 
externally. 
Length 2,,, breadth 1} millim. (@.) 
Hab. Panama, Bugaba (Champion). 
2FF 2 
