COLEOPTERA OF BAJA CALIFORNIA. 



( SUFPI,EMENT I. ) 

 BY GEORGE H. HORN. 



[ With Plate xx. ] 



The following additional account of Coleoptera from 

 the Cape Region of Baja California is the result of the 

 examination of new collections received from the Califor- 

 nia Academy of Sciences since the publication of my last 

 paper. The result is the addition of fifty -two species, 

 half of which are new. The collections were made by 

 the expedition sent out by the Academy to the Cape Re- 

 gion and the Pacific mainland of Mexico during the month 

 of September, 1894. 



One of the most interesting in the matter of distribu- 

 tion is a specimen which I am compelled to refer to Cal- 

 osoma Sayi, unfortunately a female and without legs. The 

 discovery of the male may prove it to be a distinct species. 



This as well as the former collections from the Cape 

 Region of Baja California contains a few species identical 

 with those from the Pacific mainland of Mexico, indicating 

 the varied origin of the Cape Region fauna. The types 

 will be found in the collection of the Academy of Sciences 

 in San Francisco. 



CARABIDyE. 



* Calosoma Sayi Dej. The unique female is rather 

 smaller than those found in the States. Pennsylvania to 

 Texas. San Jose del Cabo. 



Dyschirius truncatus Lee. Colorado, Nevada, Cal- 

 ifornia, Arizona. San Jose del Cabo. 



*0n the day after the proof-sheets of these pages left me a male of the 

 Calosoma Sayi was received, enabling me to state with certainty that it 

 agrees in all details with the forms from the Atlantic region. 



2d See., Vol. V. ( 15 ) July 19, 1895. 



