136 CALIFORNIA ACADEMY OF SCIENCES. 



no other record of its occurrence within our district; 

 El Monte (Los Angeles County) teste Rivers. I know 

 of no record of any other species of this family hav- 

 ing occurred in our district. In the genus Platy- 

 cerus, oregonensis, agassii, calif ornicus, parvicollis, pacifi- 

 cus, thoracicus and chalybceus are all Californian. P. 

 oregonensis has occurred as far south as Tejon, but the 

 true habitat of the genus is more northern. Ceruchus 

 punctatus and C. striatus occur in middle and northern 

 California. 



Canthon. G. simplex is widely diffused and generally 

 common; the variety humeralis is rare. It is probable 

 that the varieties corvinus and militaris occur in our 

 region but I have no specific reference to the fact. C. 

 Icevis and C. perplexus are recorded respectively from 

 "So. Cal." and " CaL," but there can be little doubt 

 that they were taken in the desert regions of the south- 

 east. 



Copris. G. mcechus, Los Angeles; one example taken 

 by Dr. W. J. Karlsioe (fide Linell). 



Oniticellus. 0. californicus, Shasta region; very 

 scarce. 



JEgialia. A. conferta, Pomona, Riverside, etc., espec- 

 ially in early spring, when it may frequently be taken 

 on the wing: latispina occurs with the preceding and 

 is of about equal frequency: crassa, not rare along the 

 seacoast (Santa Monica, Redondo, Monterey): cylindrica 

 occurs in Marin County: lacustris, middle Sierras: 

 blanchardi, Mendocino County. 



Psammodius. P. nanus, a little species sometimes 

 seen flying about the streets of Pasadena in large num- 

 bers on warm evenings; September to May; it is widely 



