288 Mr. J. S. Baly's descriptions of new genera 



duced, laterally curved, the apex obtuse ; basal margin 

 slightly oblique and bisinuate on either side, the medial 

 lobe obtusely rounded ; above transversely convex, closely 

 rugulose-punctate, impressed with numerous variolose 

 punctures, scattered irregularly over the whole surface. 

 Elytra rather broader than the thorax, narrowly oblong, 

 convex, deeply and regularly punctate-striate ; the inter- 

 spaces plane near the suture, slightly convex on the outer 

 disk, closely punctured. 



Genus Systena, Clark. 

 Systena ornata. 



Elongata, convexa, obscure cuprea, nitida, antennis, 

 pedibus abdomineque piceis, femoribus posticis abdo- 

 mineque cupreo micantibus; elytris confuse punctatis, 

 utrisque maculis duabus, una infra basin elongata, altera 

 ante apicem oblonga, margineque apicali flavis. 



Long. 2 lin. Hah. — Jamaica. 



Head coarsely punctured, the puncturing finer and less 

 crowded on the vertex ; carina slightly raised, smooth, 

 impunctate ; encarpEe ill-defined. Thorax more than one- 

 half as broad again as long; sides nearly straight and 

 parallel, anterior angles oblique, obtuse, hinder angles 

 acute ; disk strongly and rather closely punctured. 

 Elytra broader than the thorax, narrowly oblong, strongly 

 punctured, each elytron with the apical border and two 

 small spots, the first linear placed below the base, the 

 other subapical, oblong, flavous. 



Systena Deyrollei. 



Subelongata, convexa, nigra, nitida, pedibus anten- 

 nisque fulvis, his extrorsum femoribusque posticis piceis; 

 thorace distincte punctato ; elytris oblongo-ovatis, con- 

 vexis, infra basin transversim depressis, sat fortiter 

 punctato-striatis, interspatiis planis, apicem versus et 

 externis totis leviter convexiusculis. 



Long. 1^ lin. Hab, — Brazil, New Friburg. 



Head exserted ; vertex and front sparingly impressed 

 with fine punctures ; interocular spaces separated from 

 the front on either side by an oblique groove ; encarpte 

 obsolete; carina narrow, elongate: antennse rather more 



