DESCRIPTIONS OP NEW SPECIES. 35 



bat with the thorax less strongly narrowed in front ; only the 

 tarsi, even of the anterior legs, are testaceous. 



HETEROTHOPS STEPHENS. 



117. H. fiisculus. Thorace elytris et ano piceo-rufis, illo latitudine 

 paulo breviore antrorsum fortiter angustato, elytris thorace baud brevi- 

 oribus, subtiliter punctatis, abdomine piceo, punctato, segmentis postice. 

 late rufo-marginatis, antennis piceis basi testaceis, capita ovali nigro- 

 piceo, pedibus testaceis. Long. '17. 



One specimen ; Cambridge, Mass. The under surface is red- 

 dish-brown and hairy, paler towards the tip of the abdomen. 



118. H. fumigatus. Thorace elytrisque piceo-rufis, illo latitudine 

 haud breviore, antrorsum sensim angustato, elytris thorace haud bre- 

 vioribus, minis subtiliter punctatis, abdomine piceo, subtiliter confertim 

 punctato, apice paulo pallidiore, antennis piceis basi testaceis, capita 

 ovali nigro-piceo, pedibus testaceis. Long. -14. 



Detroit, on the bank of the river. Similar to the preceding, 

 but smaller, with the thorax comparatively narrower and lesa 

 narrowed in front, and the elytra more strongly punctured. 



119. H. californicilS. Nigro-piceus, capite ovali, thorace marginibus 

 saepe rufescentibus, latitudine haud breviore, antrorsum fortiter angus- 

 tato, elytris thorace paulo longioribus, fortiter haud dense punctatis, 

 margine apicali ssepe rufescente, abdomine dense subtiliter punctato, 

 segmentis margine postico, anoque piceo-rufis. Long. -14 "IS. 



San Francisco, California. Easily distinguished by the an- 

 tennae and feet being nearly black, and the base of the former not 

 paler than the outer joints. 



1 MO. H. pnsio. Nigro-piceus, thorace latitudine paulo breviore, an- 

 trorsum fortiter angustato, elytris thorace paulo longioribus, rufo-piceis 

 subtiliter dense punctatis, abdomine piceo, dense subtiliter punctato, 

 apice rufo-piceo ; antennarum basi pedibusqe piceo-testaceis. Long. -10. 



New York ; one specimen. Easily distinguished by its much 

 smaller size, and by the more finely punctured elytra. 



TRIGONOPHORUS NORDUANK. 



121. T. 81l1>coeruleus. Valde elongatus, niger nitidus, capite grosse 

 punctato, plaga frontali laevi, thorace latitudine paulo longiore, utrinque 

 grosse punctato, vitta lata dorsali Isevi, elytris cyaneis fortiter crebre 



