COLEOPTERA OF BAJA CALIFORNIA. 333 



asserts that our other species of Sinox34on must be re- 

 ferred to some other g-enus. 



DiNODERUs TRUNCATUS Horn. CaHfornia. Cabo San 

 Lucas, 



POLYCAON PUNCTATUS LeC. 



PoLYCAON EXESus Lcc. Collected by Xantus proba- 

 bly near Cabo San Lucas. 



Lyctus planicollis Lee. Colorado, Texas, Cali- 

 fornia. Baja California. 



Lyctus californicus Casey. Fort Yuma, Cal. San 

 San Jose del Cabo. 



CIOIDyE. 



Ceracis similis n. sp. Coral de Piedra. 



Rhipidandrus peninsularis n. sp. Coral de Piedra, 

 Sierra El Taste. 



SPHINDID^. 



EuRYSPHiNDus HiRTUS Lec. Detroit and vicinit}^ 

 El Taste. A remarkable distribution, but the specimens 

 are absolutely identical. 



PASSALIDyE. 



Passalus sp. One species is known to me from the 

 Cape Region. I have not yet been able to place it in 

 any of the genera into which Passalus has been divided, 

 and await the occurrence of more material that specimens 

 may be sent abroad for comparison. 



SCARAB^EID^. 



Canthon puncticollis Lec. Arizona. San Jose del 

 Cabo. 



Canthon simplex Lec. California, Arizona. San 

 Pedro Martir. 



