COLEOPTERA OF SOUTHERN CALIFORNIA. 123 



Pomo.ua and Pasadena, by beating willows in May: in- 

 genuus is not common; Pasadena, May: ochropus is de- 

 scribed from San Diego: lautus is reported from various 

 localities in our region: fraxini is northern: trans- 

 marinus and grandicollis occur in the middle and north- 

 ern Sierras. 



Polemius. P. languidus is described by Horn from 

 the vicinity of San Diego. 



Ditemnus. D. obtusus occurs at Riverside in May, 

 but is uncommon. 



Malthodes. M. Laiicollis and M. fusculus are common 

 at Pomona, Riverside, Pasadena, etc., on flowers and 

 various trees and shrubs: fragilis is described from 

 "Gal.;" I have not yet recognized it. 



MALACHID.E. 



Collops. C. marginicollis was described from San 

 Diego, in which vicinity it appears to be commoner 

 than elsewhere; I have taken it sparingly at Pomona in 

 April, May and September: cribrosus occurs on the ocean 

 beaches and on the adjacent sand dunes; it is especially 

 common during April and May at Redondo, and I have 

 also taken it in August at Santa Monica: argutus is not 

 rare at Pomona and Pasadena, and I have seen speci- 

 mens from San Diego and also from Sonoma and Lake 

 counties: punctulatus is perhaps our rarest species, single 

 specimens from Pomona and San Diego being all I have 

 seen from our district: marginellus is not common; I 

 have taken it at Pomona and San Bernardino in August: 

 insulatus is described from California, but I have seen 

 no specimens from our section. Two females of an 

 apparently undescribed species have been taken at 

 Pomona. 



