308 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



lined with pale ; front and clypeus deep black, the former polished, the 

 latter sometimes paler, the lateral white spots very distinct, oval, smaller 

 and better defined than in aridns. Elytra whitish-hyaline ; nervures white, 

 becoming fuscous at apex, strongly dotted ; the stigma large, fuscous, with 

 its base white; female with fuscous spots at the forks of the sectors and 

 on the transverse nervures. 



Described from a long series representing both sexes, taken 

 about the bay district, the following localities being repre- 

 sented in Mr. Giffard's material: Los Altos, July 26, 1916; 

 Redwood Canyon, July 2, 1916; Walnut Creek, August 10, 

 1916; and near Cloverdale, Sonoma Co., August 3, 1916. 

 I have taken this species at San Francisco and Berkeley. 

 This seems to be the most abundant species in the central 

 coast region of California, while farther south it is replaced 

 by californicus, which is equally abundant in San Diego Co. 

 This is the species I had formerly detemiined as franciscanus, 

 but a careful study convinces me that Stal's species must be 

 the complectus of Ball. 



Holotype (No. 374), male, from Los Altos, in collection of 

 the California Academy of Sciences. 



Allotype, female, from Los Altos, in collection of Mr. 

 Gififard. 



Paratypes in both collections and in that of the author. 



328. Oliarus exoptatus, new species 



Allied to californicus but with a broader vertex and heavier elytral 

 venation ; may be distinguished from aridus and hesperius by the absence 

 of white spots at apex of the front. Length 5j/2 - 7 mm. 



Vertex nearly square, a little broader than in hesperius; the anterior 

 carina quite regularly arcuated. Front broad, intermediate in form between 

 californicus and hesperius. Pronotum about as in hesperius, longer than 

 in californicus; intermediate carinae of the mesonotum strongly convergent 

 and not abbreviated anteriorly. Elytral nervures heavy and maculated. 

 Ventral notch of the male pygofers broad and shallow, its margins strongly 

 oblique ; sides of the pygofers short and broadly rounded, not surpassing 

 the middle of the stiles ; dorsal surface strongly produced either side of 

 the anal tube and somewhat depressed at the apex of the lobes, considera- 

 bly surpassing the stiles. Stiles slender, subterete, lyrate, diverging and 

 again approaching at apex, their outer angles strongly produced in a long 

 appendage which is curved upward and backward almost to the margin of 

 the pygofer. 



Color deep black, the slender margins of the head and pronotum pale, 

 those of the mesonotum concolorous or nearly so. Elytra whitish-hyaline, 

 the nervures heavy, whitish but thickly and strongly granulate, giving 

 them a blackish aspect ; transverse veinlets carrying a fuscous line, the 

 middle of the corium with an obsolete fuscous band ; stigma large but 

 broken by a white band; knees, tibias and tarsi testaceous-brown. 



