'844 THE LATE MR. M. .TACOBY ON NEW [Nov. 26, 



Of broadly subquadrate shape, entirely purplish ; the head with a 

 few punctures and some sulci at the vertex, the latter very narrow 

 on accoimt of the rather closely approached eyes, these triangularly 

 emarginate ; clypeus well separated from the face, broader than 

 long, sparingly punctured ; antennae pui'plish, slender, rather 

 short, the terminal three or four joints slightly thickened. 

 Thorax not more than one-half broader than long, convex, sides 

 feebly rounded, but little narrowed anteriorly, posterior angles 

 rather strongly produced ; surface somewhat uneven, finely and 

 not very closely punctured, the punctures shallow. Scutellum 

 narrow, longer than broad, black. Elytra, scarcely more than 

 double the length of the thorax, rather strongly punctate-striate, 

 with a shallow fovea immediately below the shoulders. Body 

 below dark blue, shining. Prosternum subquadrate. posterior 

 margin feebly rounded. 



Hah. Port-au-Prince, Haiti. 



Smaller than C. riifitarsus Suff. and C, tristiculus Weise from 

 Porto Rico, entirely metallic, the elytral punctures straight, the 

 interstices impunctate. 



Cryptocephalus argentinus, sp. n. 



Bluish black ; basal joints of the antennae, lower portion of face 

 and legs flavous ; thoi-ax finely granulate ; elytra very finely 

 punctate-striate. 



Length 1| millim. 



Head impunctate, black at the vertex, lower portion flavous ; 

 eyes but feebly notched ; antennae black, basal joint flavous, third 

 and fourth joints small, equal, terminal joints strongly thickened. 

 Thorax scarcely twice as broad as long, strongly narrowed 

 anteriorly, the anterior margin preceded by a narrow tiunsverse 

 sulcus ; sui-face not perceptibly punctured, median lobe of basal 

 margin truncate ; disc black and shining. Scutellum elongate and 

 pointed, longer than broad. Elytra finely punctate-striate, 

 slightly greenish black; the punctures rather widely separated, 

 distinct to apex; last interstice slightly convex, shoulders tuberculi- 

 form. Legs fulvous, knees and tarsi piceous. Prosternum sub- 

 quadrate, posterior margin emarginate. 



Hah. Buenos Ayres, Argentine Rep. 



A very small species, of subquadrate shape and with antennae 

 much like a Monachus, but with difl'erently shaped prosternum ; 

 the entirely flavous lower portion of the face and the similarly 

 coloured legs distinguish well this species, received from the La 

 Plata Museum. 



Griburius bolivianus, sp. n. 



Black ; thorax finely and closely punctured, with deep depression 

 at sides ; elytra finely punctate-stiiate, a subquadrate patch at 

 base, not extending to suture, and a round apical spot bright red. 



Length 3 millim. 



S . Upper portion and sides of head entirely occupied by the 



