58 U. S. P. R. R. EXP. AND SURVEYS ZOOLOGY 47TH PARALLEL. 



sider as S. nasicus Schonh., but the rostrum has only a very few punctures near the base, the 

 thorax is more generally rounded in front, and the elytra are more regularly narrowed from 

 the base and less rounded on the sides ; the color of the pubescence is almost entirely uniform. 



BARIDIUS Schonherr. 



B. macer, niger nitidus, elongatus, capite rostroque confertim punctatis hoc ad basin transversim 

 impresso arcuato, [thorace paulo breviore ; thorace latitudine hand longiore, a basi sensim, ad 

 apicem subito rotundatim angustato, sat dense grossius punctate, linea dorsali vix conspicuo ; 

 elytris vix impressis, striis profundis leviter punctatis, interstitiis uniseriatim punctulatis, 

 pygidio grosse confluenter punctato. Long. 13 15. 



San Francisco ; belongs to Schonherr s Stirps 1. 



B seriatus, elongatus, niger subnitidus, capite parce punctulato, opaco, rostro rugose punctato, 

 arcuato, thorace vix breviore, ad basin transversim impresso ; thorace grosse punctato ; latitudine 

 vix longiore, lateribus subparallelis ante medium valde rotundatis ; elytris striis impunctatis 

 profundis, interstitiis uniseriatim fortius punctulatis. Long. 09. 



One specimen found at San Francisco ; belongs to the same division as the preceding. 



ANALCIS Schonherr. 



A. morbillosus, elongatus ovalis, niger, thorace latitudine paulo longiore, lateribus pone 

 medium, subparallelis ante medium rotundatis, disperse at profunde foveatim punctato, spatio 

 dorsali sublaevi haud elevato, guttis utrinque ad medium albo-pilosis, elytris maculis albopubes- 

 centibus variegatis, seriatim foveatim punctatis, interstitiis subrugosis. Long. 2. 



One specimen found at San Francisco. Nearly allied to A.foveolatus, (Tyloderma foveolatum 

 Say,} but distinguished by the thorax being not carinate, much less densely foveolate and not 

 narrowed or rounded on the sides behind the middle ; also by the spots being formed of white 

 instead of yellow pubescence. 



EHYNCOPHORUS Schonherr. 



R. asperulus, elongato-ovalis, niger nitidus, fronte foveato, rostro ad latera punctato, thorace 

 latitudine longiore, minus subtiliter punctato, punctis ad latera asperatis, linea dorsali vix 

 distincta ; elytris striis fortiter punctatis, interstitiis uniseriatim subtiliter punctatis, seriebus 

 saepe paulo confusis. Long. 5. 



One specimen, Sacramento ; Mr. Wittick. The punctures of the thorax become gradually 

 muricated towards the sides, where they are acute and terminated by a very short bristle. 



SPHENOPHORUS Schonherr. 



S. gentilis, piceo et rufo-piceo variegatus, nitidus, elongatus, rostro cylindrico, punctato, ad 

 basin canaliculate, canali in fovea frontali desinente ; thorace latitudine longiore, lateribus paral- 

 lelis antice rotundatis, ad apicem breviter tubulato, dense grosse punctato, linea latiuscula 

 dorsali laevi ; elytris striis valde profundis, modice puactatis, interstitiis uniseriatim subtiliter 

 punctatis. Long. 28 36. 



San Jose, California ; belongs with most of our native species to the division of the genus 

 with narrow tarsi and cylindrical rostrum, but differs from all others in my collection by the 

 thorax being without impressions, and having only a single elongated dorsal smooth space. 



