346 



ME. J. BALT ON NEW SPECIES 



culato, medio valde gibboso ; gibbere laxe elevato-reticulato, apice lon- 

 gitudinaliter canaliculato ; elytris subnitidis, rude rugosis, tuberculis 

 compressis nonnullis validis instructis ; pygidio tricarinato. Long. 



21m. 



Hob. India. 



Head closely punctured, front with a faint longitudinal impres- 

 sion ; labrum fulvous ; antennae rather shorter than the thorax, 

 the six outer joints dilated. Thorax opaque, slightly rugose, ob- 

 tusely tuberculate on either side, disk strongly gibbous, the gib- 

 bosity oblique anteriorly, its apex longitudinally canaliculate, 

 loosely elevate-reticulate. Elytra broadly oblong, less opaque 

 than the thorax, coarsely punctured, the interspaces irregularly 

 rugose, more strongly so on the hinder disk ; each elytron with a 

 number of raised compressed tuberosities arranged in three lon- 

 gitudinal rows — namely, four close to and parallel with the suture, 

 tour others on the line of junction between the inner and outer 

 disks, less defined, and two on the outer disk itself; humeral callus 

 thickened. Pygidium longitudinally tricarinate, the carinae inter- 

 sected and united below the base by a transverse costa. 



Genus Lampeosoma, Kirby. 



Lamprosoma tricolor, n. sp. Breviter ovatum, postice attenuatum, 

 valde convexum, subtus cum antennis nigrum, supra plumbeum, ca- 

 pite thoracisque angulis anticis viridi-seneis ; clypeo late transversira 

 emarginato ; elytris tenuiter punctato-striatis \ prosterno oblongo- 

 quadrato, postice paullo attenuate, disco antice leviter concavo, mar- 

 gine antico paullo elevate, medio sinuate. Long. 3^ hn., lat. 2^ lin. 

 Hob. Amazons, Santarem. 



Vertex minutely and sparingly punctured, lower portion of face 

 more strongly punctate ; triangular space between the eyes and 

 an oblique line bounding the clypeus on either side faintly exca- 

 vated ; clypeus short, its anterior margin deeply and broadly ex- 

 cavated, the hinder edges of the emargination transverse, nearly 

 straight ; labrum brassy green, its front margin obtusely angled, 

 its surface coarsely punctured along the base, the anterior por- 

 tion excavated, nearly free from punctures. Thorax more than 

 twice as broad as long at the base ; sides rounded and converging 

 from base to apex, nearly parallel at the base ; upper surface im- 

 pressed on either side just in front of the median lobe, very finely 

 and distantly punctured. Scutellum metallic green. Elytra 

 finely but distinctly punctate-striate. 



