58 CALIFORNIA ACADEMY OF SCIENCES. 



low altitudes, but more plentiful in the higher parts of 

 the Sierras: infuscatus, common: dissimilis, San Fran- 

 cisco and north. 



Dactylosternum. D. cacti, one example, Los Angeles 

 County (Van Dyke); occurs abundantly in decomposing 

 cactus (Cereus) in Arizona, but is thus far rare in 

 Southern California. 



Cercyon. C. fanbriatus, everywhere abundant along 

 the seashore in decomposing seaweed: luniger, much 

 less frequent in same situations, and on Catalina Island, 

 where fimbriatus has not yet been found: fulvipennis, 

 common in excrementitious matter: lugubris, not rare, 

 about the roots of grass in marshy places, and in decay- 

 ing vegetable matter: nigriceps, rare, San Diego, Pomona. 



C. depressus, quisquilius, lateralis, tristis and navicu- 

 laris are quoted from California in Horn's Revision. 



Megasternum M. posticatum, rather common in de- 

 composing vegetable matter, especially along the moun- 

 tain streams. 



SILPHIDJE. 



Necrophorus. N. marginatus, rare; one specimen 

 taken at Riverside, June: guttula, numerous on San 

 Clernente Island, May and June, rather scarce on the 

 mainland: pustulatus var. nigritus, not rare on both 

 islands and mainland; numerous specimens taken in 

 electric light trap at Pasadena, April and May; var. 

 melsheimpri is northern. 



Silpha. S. lapponica and S. ramosa are generally 

 common: opaca, one specimen mentioned by Dr. Horn 

 as taken near Mono Lake. 



Necrophilus. N. hydrophiloides , from middle and 

 northern part of State. 



