50 Journal New York Entomological Society. [Vol. xxiv, 



membranule orange with a pinkish tinge. Hind wings orange at base, clouded 

 beyond, the color spreading out over nearly all of the area of the last two 

 anal cells. Beneath yellowish with a black spot contiguous to each eye and a 

 few conspicuously black spots near the base of the legs, particularly those of 

 the median pair. The triangularly shaped opercula are long and rather blunt 

 at the lower extremities and extend about one half the length of the abdomen. 



Cicada castanta 



The uncus when seen in profile has at the extremity a projection like an up- 

 turned nose ; when viewed from behind it is seen to be divided longitudinally 

 through this nose ; the ends are expanded and truncate. The last ventral 

 segment of the female is doubly notched at its extremity, that is, it is broadly 

 notched and this notch in turn has a central one. 



Measurements (in Millimeters). 



Male Type. Female Allotype 



Length of body 19.5 20 



Width of head across eyes 8 8 



Expanse of fore wings 63 64 



Greatest width of fore wing 10 10 



Greatest width of operculum 4.5 



Greatest length of operculum 6 



In addition to the type which is figured, and allotype, the following 

 specimens have been examined : 



Jerome, Arizona, three males, two females (Oslar). Davis col- 

 lection. 



Prescott, Arizona, nine males (Oslar). Davis collection. 



Baboquivari Mts., Arizona, male (F. H. Snow). Collection Univ. 

 of Kans. 



Santa Rita Mts., Arizona, female. Collection Brooklyn Museum 

 of Arts and Sciences. 



