March. I9i6.] DaVIS : CiCADAS FROM THE UnITED StATES. 



63 



Closely resembles Cicada hieroglyphica in markings, but is larger and has 

 differently shaped fore wings, opercula and genitalia. 



Head greenish tawny with a black spot each side slightly above the base 

 of each antenna and adjoining the upper transverse rugae. Front without any 

 median groove at the upper portion of the transverse rugae, its place being 

 taken by an oblong greenish orange spot, rounded at the top and pointed at 

 the bottom ; each side the ridges of the rugae are greenish orange and the 

 grooves blackened. The region about the ocelli is included in a broad, some- 

 what U-shaped black mark, each side of which there is a large, curved, black 

 spot extending toward the eye. There is a black mark on the inner side of 

 each eye which extends backward so that the area behind each eye is wholly 

 black. Pronotum greenish tawny, the central area occupied by two parallel 

 black irregular marks widened before and behind until they meet, leaving a 

 central dart-shaped area of a lighter color, the point of which points back- 

 ward and extends to the collar. Each side of the two central marks there is 

 a short, parallel irregular black stripe and the grooves are blackened. The 

 hind margin or collar has on each side on its anterior edge, but nearer the 

 humeral angles, a short black mark and on each humeral angle there is a 

 broad curved black band extending to the eye. The mesothorax has extending 

 backward from its fore margin seven black marks, the central one a narrow 

 stripe extending backward nearly to the x. The next two marks on either 

 side of the central one extend backward for nearly one half of the length of 

 the pronotum ; next comes a short spot with posterior end pointed and then 

 the outer broad, black stripe extending backward nearly to the x and having 

 a curved spot adjoining it at almost right angles. The x has a spot at each 

 of its anterior extremities, otherwise it is greenish tawny like the rest of the 

 mesonotum. The hind border is slightly more excavated at the x than in 

 either hieroglyphica or johannis. Abdomen tawny, narrowly lined between the 

 tympana with black; the basal half of the last segment and the supra-anal plate 

 also black. The region of each spiracle is slightly clouded. The tympana are 

 small with their anterior margins rounded and not covering the openings as 



Cvcada chisos 



