JAMES A. G. EEHN AND MORGAN HEBARD 263 



and very cold wind was blowing and their bodies were stone cold. 

 The males, however, stridulatcd vigorously — dzit-zit dzit-zit dzit- 

 zit — a harsh and nervous sounding note, which was discontinued 

 instantly if one approaching was heard or seen, no matter if 

 twenty feet away. The males, when they thus discontinued 

 stridulating, however, were easily taken, as they would remain 

 motionless until suddenly seized, if the hand approached with 

 caution after a reasonably careful advance had been made. 

 Individuals not stridulating were alert and would at once make 

 for some crack under a granite boulder, by clumsy and short but 

 hurried leaps. The species was found in small numbers on the 

 southwestern slope of Mount Whitney at 13,800 to 14,200 feet, 

 elsewhere it was very scarce." 



TRANS. AM. ENT. SOC, XLVI. 



