COLEOPTERA OF SOUTHERN CALIFORNIA. 139 



Amphicoma. The only specimens of edivardsii from 

 Southern California that I have seen were taken by 

 Dr. E.G. Van Dyke in the Santa Monica Mountains. 

 A. canina is not infrequent in the Southern Sierras. 

 Professor Rivers reports finding a single example of 

 ursina on the sand-dunes at Santa Monica; it is not rare 

 in similar situations near San Francisco: cooperi occurs 

 at Sacramento in early July: rathvoni, the middle 

 Sierras. 



Oncerus. 0. floralis, San Diego County, Palm 

 Springs; occurs on flowers during April at the latter 

 locality. 



Hoplia. If. sackenii, San Diego (Le Conte); Sylvania 

 (Ricksecker): callipyge, not abundant at Pomona, on 

 flowers of grease wood; May and June: pubicollis, not 

 rare at Riverside during April and May, on willows 

 along the Santa Ana River: dispar, common from Lake 

 Tahoe to Siskiyou County. Specimens of two appar- 

 ently undescribed species have been taken by Dr. 

 Fenyes and myself at Castle Crag and Lake Tahoe 

 respectively. 



Gymnopyge. G. hopliceformis, Mojave Desert (Co- 

 quillett). 



Dichelonycha. D. crotchii, San Bernardino Moun- 

 tains, July; more common in the middle Sierras: fus- 

 cula, plentiful in the foot-hills near Pomona, etc., on 

 flowers of greasewood; June: truncata, Pomona, Palm 

 Springs, San Bernardino Mountains; April to July: 

 pusilla occurs with the two preceding species in the 

 foot-hills near Pomona, but unlike them is also fre- 

 quently taken within the town itself, especially about 

 roses: pollens and clypeata are northern and appear to 

 be not often taken: fulgida and valida are more or less 



