]^58 MR. M. JACOBY ON NEW [Feb. 19, 



portion raised into a rounded, undivided elevation ; elytra with 

 about ten small tubercles, the ridges obsolete. 



Length 2| millim. 



Head rather sparingly punctured, the vertex with a small black 

 spot ; antenna with the fifth and following joints thickened and 

 transverse, the lower joints flavous, the terminal ones fuscous (the 

 apical joint wanting) ; thorax irregularly punctured in patches, the 

 punctures of piceous colour, the posterior portion raised into a 

 round hump, which is more crowded with black punctures than 

 the rest of the surface, at the sides two or three small obsolete 

 tubercles are placed ; elytra remotely impressed with dark punc- 

 tures, without ridges, the basal margin near the scutellum deep 

 black, each elytron with about ten small tubercles, one at the 

 middle of the base, another (obsolete) on the shoulders, three 

 placed transversely before the middle, one close to the suture 

 below the middle and more strongly raised than the others, another 

 tubercle near the lateral margin and in a transverse line with the 

 preceding one, lastly one near the apex near the suture and two 

 very obsolete tubercles still nearer to the apex at the sides, the 

 interstices between these latter tubercles are slightly costiform, 

 the suture finely serrate throughout ; pygidium somewhat rugose 

 and spotted like the rest of the surface with dark punctures ; below 

 and the legs flavous, strongly punctured, the tibiae with a small 

 obsolete piceous spot at the middle. 



Hah. Haiti. 



Chlamts oordovensis, sp. n. (Plate XIV. fig. 7.) 



Obscure cupreous, the labrum and the antennae fulvous ; posterior 

 portion of the thorax raised into two high elevations, acutely 

 ridged at the apex and preceded by another rounded callosity at 

 each side, sparingly punctured ; elytra with three tubercles at the 

 base and four or five near the apex, sparingly punctured ; pygidium 

 metallic cupreous, remotely punctured. 



Length 3 millim. 



About one half longer than broad ; the head opaque, obscure 

 cupreous, finely rugosely punctured, longitudinally depressed at the 

 middle; eyes very deeply but narrowly notched; labrum fulvous; 

 antennae fulvous, the basal joint cupreous above, the third and 

 following joints gradually transversely widened ; thorax sculptured 

 like the head, the basal portion highly raised into two ridges of 

 oblique direction, the inner depression finely strigose in different 

 directions, the sides of the elevations swollen, forming a callosity, 

 near the lateral margins are two less distinctly marked swellings, 

 the entire svirface is finely granulate and sparingly punctured ; 

 scutellum finely rugose or granulate, not broader than long ; elytra 

 slightly constricted at the sides near the middle, the usual elon- 

 gate ridges almost absent, the base with three tubercles, one 

 representing the humeral callus, another at the middle of the base, 

 both highly raised, and a small tubercle near the scutellum, another 

 small tubercle is also placed near the suture before the middle, six 



