64 



COLEOPTERA OF NORTH AMERICA. 



Acneus Horn. 



3997. quadrimaculatus Horn. 



Prionocyphon Redt. 



3998. discoideus Say. 



3999. limbatus Lee. 



Microcara Thorn. 



4000. explanata Lee. 



Helodes Lat. 



4001. apicalis Lee. 



4002. 

 4003. 

 4004. 



4005. 



maculicollis Horn. 

 pulchella Guer. 

 fuscipennis Guer. 

 thoracica Guer. 



Scirtes 111. 



4006. orbiculatus I'ab. 



\/. 



! 4007. tibialis Guer. 



4008. Troberti Guer. 



californicus Mots. 



Cyphon Payk. 



4009. robustiis Lee. 



4010. ruficollis Say. 

 — 4011. brevicollis iec. ^J>a1< 



4012. exiguus Horn. 



- — 4013. concinnus iec.i^o^ 



4014. obscurus Guer. 



4015. collaris Guer. 



4016. variabilis Thunh. 



4017. padi Linn. 



4018. impreasus Lee. 



Placonycha Horn. 



4019. Edwardsii Lee. 



RHIPICERID^f:. 



Zenoa Say. 



4020. picea Beauv. 



Sandalus Knoch. 



4021. petrophya Knoch. 



4022. porosus Lee. 



4023. niger Knoeh. 

 seabricollis Hald. 



4024. californicus Lee. 



EI.ATERID.C 



Dendrocharis Guer. 



4028. flavicornis Guer. 



Stethon Lee. 



4029. pectorosus Lee. 



Deltoraetopus Bonv. 



4030. amoenicornis Say. 

 ereptus Bonv. 



? monilicornis Mann. 



Pheenocerus Bonv. 



4039. anaericanus Horn. 



