77C) MR. M. JACOBY ON NEW [Dec. 16, 



thorax finely. Elytra strongly punctured, each elytron with three 

 small tubercles placed triangularly. 



Length If line. 



Hab. Capetillo, Dueiias, Guatemala. 



Head flat, distinctly punctured, fulvous, eyes deeply emarginate. 

 Antennae as long as the thorax ; the joints from the fifth to the apex 

 transverse, broader than long ; the four basal joints fulvous, the rest 

 black. Thorax regularly narrowed from base to apex, its sides 

 straight, surface regularly convex, finely punctate and pubescent, 

 violaceous blue. Scutellum large, darker blue, opaque. Elytra 

 narrowed posteriorly, their apex broadly rounded, closely covered 

 with deep oblong punctures, their sutural margins denticulate through 

 their entire length, each elytron with a short transverse tubercle 

 placed in the middle near the sutural margin, while another small 

 round tubercle is situated above and one below it, the three forming 

 together a triangle. Pygidium fulvous, with a central blue patch. 

 Underside violaceous blue, broadly bordered with fulvous. Legs 

 fulvous, the middle and posterior tibiae, as well as the posterior 

 femora, with a blue spot. 



This species ought to follow 0. cinerea, Lac., to which it bears 

 a close resemblance; it may, however, be distinguished by the coarser 

 punctuation of the elytra and the three tubercles on the latter. 



Genus Lamprosoma, Kirby. 

 6. Lamprosoma nicaraguense, sp. nov. 



Broadly ovate , very convex. Above dark violaceous ; body beneath, 

 the head, sides of the thorax, and a short lateral stripe near the 

 apex of the elytra cupreo-aureous. 



Length 3^ lines. 



Hab. Chontales, Nicaragua. 



Head finely granulose, distinctly but not closely punctured ; 

 middle impressed with a small round fovea; anterior margin of 

 clypeus concave; labrum and apex of mandibulae black; first joint 

 of the antennae cupreous, second joint fulvous, the rest more or less 

 metallic greenish black. Thorax twice as broad as long, sides rounded, 

 moderately converging from base to apex ; posterior margin rather 

 deeply sinuate on either side, and obsoletely depressed on each side of 

 the middle lobe ; surface transversely convex, impunctate at the 

 sides, distinctly but not closely punctured on the disk, more deeply to- 

 wards the base, violaceous blue with a distinct tint of greenish olive, 

 and a broad band of bright reddish copper-colour parallel with 

 the lateral margins. Elytra very convex at the base, thence to the 

 apex greatly deflexed, slightly longer than broad, each elytron 

 covered with ten rows of very deep punctures, the interstices smooth 

 and impunctate, of the same colour as the thorax, with a short 

 lateral band of bright aureous near the apex. Entire underside and 

 legs metallic aureous. 



From L. pretivsum, Lac, distinguished by the punctures of the 

 thorax and the colour of the antennae and the elytra. From L. dives, 



