COLEOPTERA OF SOUTHERN CALIFORNIA. 179 



Oxacis. O.fragilis, San Diego: bicolor, not rare on 

 the wing at dusk in the San Bernardino Mountains, alti- 

 tude 5,000 feet: 0. sericea, Owens Valley: lucana and 

 debilis are from Yuma. 



Rhinoplatia. R. ruficollis, Owens Valley. 



CEPHALOID.E. 



Cephaloon. C. tenuicorne, northern: bicolor, Sonoma 

 and Placer counties. 



Drachylis. D. simulans was recently described by 

 Casey from Placer County. 



MORDELLID^. 



Pentaria. P. nubila is abundant everywhere: hirsuta, 

 Southern California: pusio, common and widely dis- 

 persed, frequently beaten from oaks, but nearly always 

 obtainable by promiscuous beating and sweeping; this 

 species has been wrongly included with Anaspis. 



Anaspis. A. atra and A. collaris are both frequent on 

 flowers, though the former is more plentiful farther 

 north: militaris and sericea are quoted from " Gal.," 

 but I am unable to ascertain precise localities. Two 

 specimens of an undescribed species were taken by me 

 in the San Bernardino Mountains, in July. 



Mordella. M. scutellaris is very common and widely 

 dispersed; it is extremely variable in size. A single 

 specimen of an undescribed species was secured at Po- 

 mona some years ago. 



Mordellistena. The species of this genus are rather 

 numerous in our district and many are undescribed. 

 The greater number are black without ornamentation 

 and will prove difficult to define. The following are 



