SYST^ECHEA. 133 



I propose this new genus for two species evidently allied to Stenotarsus. The thorax 

 is without a lateral impressed line, and is formed differently to that of any species of 

 Stenotarsus ; and neither it nor the elytra are so hairy as is usual in that genus. The 

 puncturing of the elytra is deep, and of the irregular " stellate " type of Stenotarsus, 

 while the bluish colour of their disc is peculiar. 



1. Systaechea cyanoptera. (Tab. VII. fig. 24.) 



Castaneo-rufa ; antennis articulis quinque ultimis nigris ; capite prothoraceque lsevigatis, elytris nigro-cyaneis, 

 sutura, margine lateralis, apiceque latius runs, fortiter irregulariter punctatis, versus apicem pube aurea 

 brevi vestitis. Long. 5% millim. 



Hah. Panama, Volcan de Chiriqui (Champion). 



Head and thorax chestnut-yellow, shining, very finely punctured ; antennae with six 

 joints clear yellow, rather pubescent, the seventh infuscate, the following joints black, 

 the club-joints subequal — the first obconic, the first and second slightly acuminate on 

 the inner side. Thorax very narrowly margined, the margin a little reflexed. Scutellum 

 red. Elytra oblong, the sides rather parallel, with scattered obsolete stellate punctures, 

 the surface between the punctures very finely coriaceous ; blue or bluish -violet, with 

 the suture and entire margin, the apex more widely, red ; a very soft, short, golden 

 pubescence is visible, but is much denuded in one specimen. Underside wholly 

 yellow. 



2. Systaechea championi. (Tab. VIII. fig. 3.) 



Fere hemisphserieus, rufo-ferrugineus ; antennis articulis sex ultimis nigris ; prothoracis disco basali, scutello 

 elytrisque nigro-plumbeis, his sparse cano-pubescentibus, eonfertim minute punctatis, limbo laterali rufo. 

 Long. 5| millim. 



Hdb. Panama, Volcan de Chiriqui (Champion). 



More orbiculate and shorter and wider than S. cyanoptera, and with the first two 

 club-joints more sharply acuminate within. The thorax is much narrowed in front, 

 and has the front angles depressed and acute, the margins very finely reflexed, the 

 basal sulci linear and converging, the disc very finely and obsoletely punctate ; the 

 basal margin is gently bisinuate, the middle being faintly truncate, and it is not 

 margined nor reflexed. Elytra fully half as wide again as the base of the thorax, in 

 their middle clothed with a sparse, and apparently fasciate, grey pubescence; nearly 

 black, with the margin very narrowly red, this colour continuing a little way up the 

 suture at the apex. S. championi is a remarkably neatly made and compact insect, 

 in form recalling Corynomalus or Acinaces, to which it is, perhaps, really allied; 

 but the pubescent elytra and structure of the antennse are more in accordance with 

 the genus now proposed. We have, unfortunately, only received one specimen. 



