270 CALIFORNIA ACADEMY OF SCIENCES. 



than the prothorax; striae moderately deep and rather finely punctate on 

 the disk, more coarsely so at sides, those of the seventh and eighth striae 

 being wider than the strias and thus encroaching on the intervals; inter- 

 vals flat, alternating in width, the narrower ones uniseriately, the wider 

 ones biseriately, but all more or less irregularly punctate, the punctures 

 rather coarse and very closely placed. Under surface more shining, rather 

 coarsely but less densely punctate than above. Femora moderately 

 punctate. 



Length, 6.5-9 mm. 



Numerous specimens have been seen, taken at or near 

 San Bernardino. 



The species may stand at the end of Division A of 

 Group V of Horn's Synopsis. 



