COLEOPTERA OF SOUTHERN CALIFORNIA. 199 



April and November: heterodoxa, one example, Los 

 Angeles County: raonticola, Bear Valley, altitude 6,400 

 feet (Daggett): tenuestriata and macra are found near 

 San Francisco: sparsa is northern: opacula and hrun- 

 neipes are without exact locality. 



Onychobaris. — 0. densa is abundant in the flowers of 

 a low plant growing on the sand-dunes at Coronado, 

 July and August: depre.ssa, Santa Monica: austera, San 

 Diego: insidiosa is rather common at Pomona, Pasa- 

 dena and San Diego: arguta, less common than the 

 preceding; foot-hills near Pomona and Pasadena: 

 audax, Southern California: seriata occurs at San 

 Francisco. 



Pseudobaris. — P. nigrina, Lake County (Casey). 



Trichobaris. — T. mucorea and T. compacia are found 

 in the flowers of Datura metilloides in April and May. 

 The former is less common. 



Orthoris. — 0. crotchii, "California." 



Centrinus. — G. lineellus, Tejon. 



Centrinogyna. — G. procera, San Francisco. 



Limnobaris. — L. nasuta, Pasadena, April and May; 

 on willows: seclusa, "So. Cal.;" I have one example 

 from Kern County. 



Barinus. — B. difficilis, Southern California. 



Barilepton. — B. falciger, San Bernardino. 



Balaninus. — B. uniformis, not rare at Pomona, Pasa- 

 dena, etc. ; also found on Santa Catalina Island affect- 

 ing several species of oaks. 



