March, 1921.] DaVIS : RECORDS OF NORTH AMERICAN CiCADAS. 



9 



from along the Missouri River in what is now North or South 

 Dakota, and a male from Sioux City, on the Missouri, was identified 

 at that time as filling in every way Say's description. Lately Mr. 

 O. A. Stevens has kindly given me a male collected June 15, 1915, 

 at Mandan, Morton Co., near Bismark, North Dakota. This speci- 

 men comes from what is believed to be near the type locality. It is 

 a trifle smaller than the Iowa example, expanding 59 millimeters, 

 but otherwise is the same. 



Okanagana nigriviridis new species. PI. II, fig. 2. 



Type male from Upland, San Bernardino Co., California, July i, 1920 

 (Miss Esther P. Hewlett). Davis collection. 



Allotype from same locality, July 2, 1920 (Miss Hewlett). Davis col- 

 lection. 



A conspicuously beautiful green and black species with slim body and 

 narrow wings. 



Head across eyes nearly as broad as front margin of the pronotum, eyes 

 and front both prominent; median sulcus well defined. Pronotum with the 

 humeral angles rounded, and the anterior angles well defined. A slight notch 

 each side near the middle of the outer edge of the pronotum. Wings narrow, 

 rather pointed, with the outer edge evenly curved. Beneath, but slightly hairy, 

 the hairs confined to the region about the legs and the sides of the face; the 



Ok.axag.an.x nigriviridis 



transverse rugae are covered with a silvery pubescence. The underside of the 

 abdomen is nearly smooth except for two spots of silvery pubescence on each 

 segment. The upper side of the body is nearly smooth except that there is a 

 silvery pubescent area each side on each of the segments ; there are the usual 

 hairs behind the eyes. The last ventral segment of the type is rounded, slightly 



