March, igis.] VaN DUZEE : WesT COAST CiCADIDvE. 37 



22. Okanagana canescens new species. 



Proportionately broader and shorter than riinosa; head more porrect ; 

 color black, less polished than in rimosa, the whole surface, especially beneath 

 whitish or greyish pubescent. Head 3^ by 7 mm.; width of mesonotum 8 

 mm. ; length of body 23 mm. ; to tip of the elytra 33 mm. ; elytra 9 by 26 mm., 

 its first apical areole 7 mm. long, the costal 9 mm. 



Pale markings much reduced, soiled yellowish or greenish ; pronotum with 

 the hind edge very narrowly pale, the lateral areas scarcely paler ; venter pale 

 greenish, the basal one half of the segments black; plural pieces and legs 

 pale or greenish, the femora more or less broadly vittate with black ; tibiae 

 and tarsi black externally. Last ventral segment 2^/i times the length of the 

 penultimate, truncate at apex ; valve unusually narrow and pointed, five milli- 

 meters in length. Last ventral segment of the female with a comparatively 

 small incisure, hardly more than one third the width of the segment and 

 reaching little more than half its length, distinctly sinuated near the fundus. 



Described from one male taken by Dr. F. E. Blaisdell at Duncan 

 Mills, Sonoma Co., Calif., July 14, 1908, and a female in the collection 

 of Mr. C. L. Fox without locality but undoubtedly taken in the Bay 

 region. The dull black color and hoary aspect of this species will 

 readily distinguish it. 



23. Okanagana vanduzeei Dist. 



Distant, Ann. Mag. Xat. Hist., Ser. S, XIV, p. 165, 1914. 



This species differs from rimosa in averaging a little smaller, in 

 having the pale marks less extended and especially in having the last 

 ventral segment of the male shorter and broader and truncated or 

 somewhat emarginate at apex and the male valve obviously shorter, 

 extending but about 3 mm. beyond the apex of the last ventral seg- 

 ment and the uncus is distinctly hooked at apex. The surface is 

 more greyish from the presence of short deciduous scale-like hairs 

 and has less of the polished blue-black tint seen in riuwsa. The face 

 also is more heavily clothed with long whitish hairs. 



The type locality for this species is San Diego Co., Calif., but 

 Dr. Van Dyke has taken it from as far north as Mt. Rainier, Wash., 

 where he found it at an altitude of 6,000 feet. It seems to be the 

 most generallv distributed of our west coast Cicadas. 



