Sept., 19 16.] Davis: Two New Cicadas. 235 



Accompanying these specimens there is a pupa 20 mm. in length 

 and 6 mm. across the eyes. It is an Okanagana pupa and probably 

 belongs to this species. The long series of specimens shows this to 

 be a distinct species. It is not the Cicada occidcntalis described by 

 Francis Walker in The Naturalist in Vancouver Island and British 

 Columbia by John Keast Lord, London, 1866, which is a much larger 

 insect with different markings. 



From the collection of the University of Kansas I have received 

 for study through the kindness of Prof. S. J. Hunter and Mr. R. H. 

 Beamer, a female Okanagana that differs considerably from other 

 members of the genus known to me. 



Okanagana rotundifrons new species. 



Type, female, Congress Junction, Yavapai Co., Arizona, July (F. H. Snow). 



A shining black and yellowish species with a conspicuously blunt and 

 rounded front. 



Head as broad as the front margin of the prothorax ; the front blunt and 

 rounded ; the median sulcus broad and shallow. Pronotum with the humeral 

 angles rounded, and the anterior angles both rounded and deflexed. The last 

 ventral segment is broadly and deeply notched. Fore wings with the basal 

 areole oblong, square at apex, and very clear; venation, including the costal 

 and subcostal veins, shining black, except along the inner margins of the costal 

 and subcostal veins and at the base of the wings, which is straw colored. 

 Flaps of the fore wings pinkish in color ; of the hind wings also pinkish but 

 including a fuscous dash. Head above shining black, the supra-antennal plates 

 yellowish except close to the eyes and the transverse groove above the front 

 also yellowish. The front is shining black except a well defined line bordering 

 the sides at the edge of the transverse rugse. Pronotum shining black, the 

 hind margin and median sulcus yellowish, the remainder of the surface in- 

 tricately mottled with yellowish and black. Mesonotum shining black, with the 

 hind margin narrowly yellowish, also a yellowish spot near the base of each 

 fore wing. The W-mark is nearly obliterated, only the outer lines showing 

 faintly. Metanotum black with the posterior margin yellowish. Dorsum of 

 the abdomen shining black with the hind margins of all the segments edged 

 with yellowish. Beneath, the legs are black, touched, particularly at the joints 

 and narrowly along the sides, with yellowish ; each abdominal segment is 

 shining black at the base and yellowish on the posterior margin. The yellowish 

 areas, both above arid below, are also shining. 



Measurements (in Millimeters). 



Female type. 



Length of body 25 



Width of head across eyes 8 



Expanse of fore wings 71 



Greatest width of fore wing 11.5 



