March, 1915-] VaN DUZEE : WesT COAST CiCADID.E. 41 



spicuous, continued well over on to the superior base but omitting a 

 triangular basal area ; median sulcus well defined and continued to the 

 apex. Supra-antennal plates oblique when viewed from above; the 

 carinate edge sharp, curved about the antennae and produced well 

 down on the side next the eyes. Pronotum 3 by 7 mm. ; both anterior 

 and posterior margins rather strongly arcuated, the former broadly 

 flattened, without a linear smooth marginal carina ; sides distinctly 

 emarginate before the prominent rounded humeral angles; anterior 

 to the sinus nearly straight and crenulated. Mesonotal X more trans- 

 verse. Meracanthi rather broad, about equalling the opercula. Basal 

 areole of elytra oblong, parallel, a little oblique at apex, its inner 

 margin rectilinear. Last ventral segment of male broadly rounded ; 

 valve long, about 4 mm. (Uncus concealed in the specimen before 

 me.) 



Color black above, pale beneath. Median vitta and margins of the 

 front, supra-antennal plates and median line of vertex and basal 

 margins and lateral areas of pronotum pale, the latter interrupted by 

 a black vitta at the humeri ; the median line of pronotum mostly pale. 

 Mesonotum with the lateral margins, the X, and two discal vittae 

 covering the loops and anterior arms of the X, pale ; the transverse 

 scrobe of the X brown. Narrow edges of the tergal segments and 

 their broad sides pale, the apical segments mostly pale. Beneath 

 the coxje, femora, tarsi and basal segment of the venter are marked 

 with black. Elytral nervures pale to the apical areoles; basal areole 

 opaque, chestnut brown. Length to tip of abdomen 18 mm., to apex 

 of the elytra 22 mm. 



Redescribed from one male taken at Denver, Colo., by Mr. Oslar 

 and received from Mr. Davis who writes me that this determination is 

 in accordance with that in the Uhler collection, and it is as correct 

 as can probably now be made. This species may not occur in Cali- 

 fornia but the description is included here for comparison with our 

 closely related forms. The male uncus is concealed in this specimen. 



32. Okanagana uncinata new species. 



Allied to triaiigtilata, a little smaller with the supra-antennal plates oblique 

 and the male uncus with a short broad hook at apex. 



Front prominent as in synodica, the striae nearly obsolete over the apex; 

 superior basal area rounded before ; median sulcus nearly obsolete above and 



