COLEOPTERA OF SOUTHERN CALIFORNIA. 105 



Throscinus. T. crotchii, several specimens found on 

 mud-flats which are covered at high tide; Coronado, 

 February, July. 



Dryops. D. productus and D. suturalis are both abun- 

 dant in all streams: striatus occurs in middle California. 



Narpus. N. angustus, northern California (Meiidocino 

 County). 



Elmis. E. divergens, two examples taken from a small 

 reservoir at Pomona, May 11; originally described from 

 Ventura (Le Conte): foveatus, several examples at 

 Pomona, June: quadrimaculatus is northern: seriatus 

 occurs at the Geysers. 



Stenelmis. A small series of nubifer was found in a 

 little mountain stream near Pasadena, October 31. 



Macronychus. M. parvulus, Pomona and Pasadena, 

 in mountain streams. 



HETEROCERID.E. 



Heterocerus. The species, except pusillus, are about 

 equally common west of the mountains, on muddy mar- 

 gins of streams and ponds. H. pusillus probably occurs 

 only in the southeast. I once took gnatho in numbers, at 

 electric lights in Riverside. H. brunneus occurs in the 

 north. 



DASCYLLID.E. 



Macropogon. M. lestaceipcnnis , Mariposa district, rare 

 (Horn); Alameda (Fuchs). 



Eurypogon. E. confusus, one example; Pasadena, 

 May (Fenyes): calif ornicus , described from a single 

 specimen taken at Geysers. 



