COLEOPTERA OF SOUTHERN CALIFORNIA. 193 



disposition of Le Conte's virgatus: modestus, common at 

 Pomona, Ojai Valley, etc., in flowers of Lupinus in 

 spring; specimens apparently identical have been col- 

 lected in the San Bernardino Mountains: pleuralis, one 

 example taken at Pomona in January. 



Dorytomus. D. incequaiis, Los Angeles (Casey); San 

 Diego, March; probably affects cottonwood as do the 

 closely related mucidus and brevipilosus of the East: 

 hystricula is very abundant: luridus is tolerably com- 

 mon on willows when in blossom; Pomona, Pasadena, 

 Riverside, etc.: hirtus was described from San Diego; 

 this species is either a rarity or else an unusual form of 

 the common thing which Casey has called hystricula: 

 rufus, one example beaten from willows at Yuma: 

 cuneatulus and marginatus are described by Casey from 

 more northern parts of the State. 



Pachyphanes. P. earns is described from "Cal.;" it 

 is probably not from our region: corpulentus is repre- 

 sented by a single specimen, so named for me by Dietz, 

 taken near San Francisco in August. 



Desmoris. D. constrictus is abundant everywhere on 

 sunflowers: fulvus and sordidus are reported from the 

 State, and it is quite probable that both are found in 

 the desert regions of the east or southeast. Dietz also 

 describes incertus from the State. 



Smicronyx. S. pusillus, San Bernardino (collections 

 of Horn and Dietz): cinereus, common and widely dif- 

 fused: instabilis, rather rare at Pomona and Pasadena: 

 defricans, not common, same localities as preceding: 

 nubilus, Pasadena, Redondo, Palm Springs; not rare: 

 calif ornicus, Pomona, Pasadena, Palm Springs; April 

 to August: obtectus, Pomona, Long Beach, San Diego; 



13 September 25, 1991. 



