COLEOPTERA OF SOUTHERN CALIFORNIA. 141 



light, at Palm Springs. I have seen a few specimens of 

 a larger species taken in Placer County that seems to be 

 undescribed. 



Lachnosterna. L. errans, middle California; described 

 from Contra Costa: lenis, desert regions of the southeast. 



Listrochelus. L. mucoreus, Yuma. 



Polyphylla. P. decemlineata and P. crinita are both 

 fairly common; the former at lights in the towns, the 

 latter at altitudes of 4,000 feet and over in the Sierras. 



Thyce. T. marginata, San Diego County. I have 

 seen one specimen taken at Oceanside by Mr. F. D. 

 Twogood. 



Phobetus. P. comatus is generally scarce; once taken 

 in some quantity at electric lights, in Pasadena, April; 

 occurs also on Catalina Island, San Diego County, and 

 in the San Joaquin Valley. 



Anomala. One example of centralis was taken at 

 Palm Springs. 



Cotalpa. G. ursina, very abundant at Pomona, San 

 Bernardino, etc., in spring, flying by day and often 

 seen in quantities clinging to the cypress hedges about 

 the city. C. granicollis is reported as having been taken 

 in the Argus Mountains by the Death Valley Expedition. 



Cyclocephala. The species of this genus are to be 

 seen flying in the evening about the city streets, and are 

 sometimes attracted to lights in large numbers. C. im- 

 maculata, C. longula, and C. villosa are most common: 

 hirta is scarce: dimidiata while not frequent at light is 

 not rare in the blossoms of Datura metelloides. 



Ligyrus. L. gibbosus is abundant and widespread. 



Euphoria. ^, verticalis, from southeastern region; 

 not common. 



