34 Journal New York Entomological Society. ["^'°'- ^^m. 



length of the broad costal areola, in riinosa this proportion is two thirds. 

 Front strongly compressed, the median sulcus narrow. Last ventral segment 

 of female with a deep, rather broad sinus which is distinctly notched near its 

 fundus ; the outer angles of this segment narrower than in any of the allied 

 species. Valve of male long as in riniosa. 



Color a uniform deep black, scarcely polished, the narrow basal angles 

 and depressed latero-posterior margins of the mesonotum and the apical 

 margin of the last two tergal segments orange. Elytral nervures black, the 

 costal to beyond the node and the commissural to the apex of the clavus 

 bright reddish-orange ; hind edge of the ventral segments genital pieces except 

 the oviduct, and the legs bright orange, the last ventral segment red with an 

 oval black mark on either side ; lower surface of the anterior femora, about 

 three vittse on the intermediate and hind femora, a mark on the base of the 

 tibije exteriorly and the tips of the tarsi black. 



Described from one female taken by Mr. C. L. Fox at Upper Soda 

 Springs, Siskiyou Co., Calif., in July, 1914, and a male from Sonoma 

 Co., received from Mr. Davis. This species may be recognized by 

 its black, almost immaculate upper surface with bright orange vena- 

 tion. The hind edge of pronotum is sometimes very narrowly pale. 



17. Okanagana arctostaphylae new species. 



Closely allied to rimosa but proportionately more slender. Reddish-fer- 

 ruginous with almost a purplish cast, marked with black on the vertex, 

 anterior margin of the mesonotum and dorsal line of the abdomen. Length 

 24 mm., to tip of the elytra 33-37 mm. ; width of metanotum 9 mm. ; width of 

 head 7 mm. ; elytra 9 by 28 mm. Head as wide as the anterior portion of the 

 pronotum ; front tmusually prominent ; svirface of the head between the im- 

 pressed areas quite smooth, not wrinkled as in rimosa. Front strongly 

 convex, the median sulcus narrow above, transverse rugje rounding. Prono- 

 tum 4 by 10 mm., the sides straight and parallel, or nearly so, anteriorly; 

 humeral angles more produced and subangulate than in rimosa, and, with the 

 broad posterior margin, transversely wrinkled. Opercula oblique, their apex 

 feebly rounded and the sides a little sinuated, the meracanthi large. Last 

 ventral segment of the female broadly notched with the sides of the sinus 

 sinuated as in rimosa. In the male this segment is unusually long and nar- 

 row to the rounded apex. Valve of the male a little shorter than in riinosa 

 but longer than in vanduzeei. Elytral venation about as in rimosa, the basal 

 cell a little narrower. This species is very uniform in its reddish-ferruginous 

 color and is marked with black as follows : vertex excepting the base and 

 sutures, sides of the face, frontal sulcus, rostrum except at base, lateral sub- 

 margins of the pronotum and a pair of small spots on the middle of its 

 anterior edge, base of the mesonotum (mostly covered by the jironotum), a 

 mark on the sides of the mesonotum and a vitta on its depressed margin, a 



