54 DESCRIPTIONS OF NEW SPECIES. 



sembles the preceding species, but the elytra are more finely and 

 densely punctured. An entirely similar specimen was given me 

 by Mr. Ulke, as found in Canada. 



193. II. Slltliralis. Niger, capite opaco, fovea occipitali notato, tho- 

 race lateribus rotundato, canaliculate, parce hand profunde punciato, 

 elytris profunde punctatis, pallidis basi suturaque nigricantibus, anten- 

 nis piceis basi pedibusque testaceis. Long. -12. 



Banks of the Gila River, Arizona. 



194. B. basalis. Niger, capite thoraceque opacis, illo parce punctu- 

 lato, hoc subtiliter baud dense punctate, canaliculate, lateribus antice 

 subparallelis late rotundatis, elytris subtiliter punctatis, albidis margine 

 basali nigricante, antennis piceis basi testaceis, femoribus piceis, tibiis 

 tarsisque testaceis. Long. -10. 



Coney Island, New York, in salt marsh ; abundant. Varies 

 with the suture also blackish. 



195. B. opaculus. Nigro-piceus opacus, brevissime pubescens, ca- 

 pite thoraceque parce punctulatis, hoc haud canaliculato, lateribus antice 

 fere parallelis, elytris dense subtiliter punetato-rugosis, testaceis basi 

 suturaque infuscatis, antennis piceis, pedibns piceo-testaceis, mandibulis 

 testaceis elongatis medio dente parvo armatis. Long. -13. 



Coast of Maine ; Mr. W. Stimpson. Quite distinct by its 

 sculpture from all others known to me. 



196. B. forcipatus. Niger, brevissime pubescens, capite thoraceque 

 opacis, parce punctulatis, hoc subtiliter canaliculato, lateribus fere pa> 

 rallelis, elytris pallidis basi suturaque infuscatis, subtiliter punctatis, 

 antennis fuscis, basi pedibusque testaceis, mandibulis testaceis, elongatis 

 dente acuto inedio armatis. Long. -08. 



Fort Yuma, California. This and the preceding species are 

 remarkable for the length of the mandibles. 



HAPLODERUS STEPH. 



197. H. linearis. Elongatus depressus, piceus nitidus, capite parce 

 punctate, occipite breviter canaliculato, thorace latitudine sesqui bre- 

 viore, irregulariter parce punctate, longitudinaliter vage biimpresso, 

 vitta dorsali laevi, elytris piceo-testaceis profunde punctatis, pedibus 

 testaceis. Long. '12. 



California and Oregon. The thorax is but slightly narrowed 

 behind. 



