COLEOPTERA OF SOUTHERN CALIFORNIA. 199 



April and November: heterodoxa, one example, Los 

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

 feet (Daggett): tenuestriata and macra are found near 

 San Francisco: sparsa is northern: opacula and brun- 

 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: depressa, 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. compacta are found 

 in the flowers of Datura metilloides in April and May. 

 The former is less common. 



Orthoris. 0. crotchii, "California." 

 Centrinus. C. lineellus, Tejon. 

 Centrinogyna. C. 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. 



