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 andi). suturalis are both ahun- 

 dant in all streams: striatus occurs in middle California. 



Narpus. — N. angustus, northern California (Mendocino 

 County). 



Elmis. — E. divergent, two examples taken from a small 

 reservoir at Pomona, May 11; originally described from 

 Ventura (Le Conte): foveatus, several examples at 

 Pomona, June: quadriinacidatics is northern: seriatus 

 occurs at the Geysers. 



Stenelmis. — A small series of nitbifer was found in a 

 little mountain stream near Pasadena, October 31. 



Macronychus. — M. parvulvs, Pomona and Pasadena, 

 in mountain streams. 



HETEROCERID^. 



Heterocerus. — The species, except pusillus, are about 

 equally common west of the mountains, on muddy mar- 

 gins of streams and ponds. H. pitsillus probably occurs 

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

 electric lights in Riverside. H. hrunneiis occurs in the 

 north. 



DASCYLLID.'E. 



Macropogon. — M. testaceij^cnnis, Mariposa district, rare 

 (Horn); Alameda (Fuchs). 



Eurypogon. — E. confusus, one example; Pasadena, 

 May (Fenyes): californicus, described from a single 

 specimen taken at Geysers. 



