June, 1920.] 



Davis: North American' Cicadas. 



103 



The original description of this species states that the head, pro- 

 notum and mesonotum are " blue-black " ; the " hemelytra and wings 

 hyaline . . . base, tegulse. and costal nervures orange, the latter long 

 and broadly arcuated ; the marginal nervure beyond the anastomosis 

 and all the other nervules blackish-piceous." The legs are described 

 as having the " femora broadly black on the upper, fore, and hinder 

 sides; the anterior pair also black on the under side." "'Length to 

 end of genital sheath 21 millimeters; to tip of closed hemeKtra 26 

 millimeters." In Entomologica Americana, Vol. IV, p. 23, April, 

 1888. Uhler says of pntnami: "This species is generally of a bright 

 steel blue color, distinctly marked with brilliant orange. It has been 

 taken at Ogden, Utah, in Clear Creek Canyon, Col., and in several 

 parts of the mountainous regions of Xevada." In the original de- 

 scription the types are said to have been " collected in the vicinity of 

 Clear Creek, Colorado, by Mr. J. Duncan Putnam." The male figured 



m 



Platypedia putnami 



on our plate came from Clear Creek Canyon. Colorado, about thirty- 

 five miles west of Denver, from which Uhler's types also came. 

 A male labeled '' Platypedia putnami Uhler. Clear Creek. Col.," is 

 in the Uhler collection, U. S. National Museum, and is. no doubt, 

 one of the specimens from which the original description was made. 

 A female from Ogden, Utah, is also in the Uhler collection and is 

 probably the one referred to by him in 1888 as mentioned above. We, 

 however, regard this as belonging to variety liitea. 



