COLEOPTERA OF SOUTHERN CALIFORNIA. 75 



Pseudopsis. P. obliterata, P. detrita and P. minuta 

 occur not uncommonly, and occasionally in large num- 

 bers, in the vegetable detritus along our mountain 

 streams; the first named species was described from the 

 valley of the Gila. 



Oxyporus. Specimens of an undescribed species have 

 been taken at Lake Tahoe in Nevada by Mr. Schwarz, 

 and on the California side of the lake by Dr. Fenyes. 



Bledius. The species are numerous, and are found 

 for the most part burrowing in wet sand or mud on the 

 margins of fresh-water streams and ponds. B. diago- 

 nalis is recorded by Le Conte as occurring on salt marsh 

 at San Diego: cribricollis appears to be confined to the 

 sea-coast; I have seen it in abundance on the beach at 

 Santa Barbara in February, but it is likely to be plenti- 

 ful at all seasons: ferratus, jacobinus, flavipennis and 

 eximius are all reported from San Diego, but I do not 

 know them in nature: opacifrons, San Diego and Los 

 Angeles: luteipennis, San Bernardino: armatus, River- 

 side, Pomona, Long Beach; not common: nitidiceps, 

 Los Angeles, Wilmington (Le Conte), Pomona, one 

 example in nearly dry bed of brook, November: relictus, 

 two examples, Pomona: laticollis, common, many locali- 

 ties: rusticus, rare, Pomona: ruficornis, abundant every- 

 where: clarus, Riverside, Pomona, not common; pleu- 

 ralis, occasionally common; once taken in numbers in 

 San Dirnas Canon near Pomona, April: ornatus, not 

 rare near the sea-coast, rare inland; taken in numbers 

 at Redondo, February: forcipatus, Yuma (Le Conte): 

 punctatissimus and phytosinus are recorded from "South- 

 ern California" without definite locality. A single speci- 

 men of a small black species not yet determined has 

 been taken at Pomona. The following occur further 



