COLEOPTERA. 127 



105. S. dives n. sp. — Form rather robust. Pubescence somewhat long, 

 sub-recumbent, coarse, close, cinereous, and somewhat conspicuous. Head 

 small, robust, distinctly less than twice as wide as long ; interocular surface 

 broadly and feebly depressed, two and one-half times as wide as the eye; 

 equally trilobed by the very feeble, rounded sulcations ; intermediate surface 

 evenly and very feebly convex ; punctures very close, round, and evenly dis- 

 tributed ; antennae somewhat longer than the width of head, rather robust, 

 coarsely and sparsely setose, dark piceous-brown, basal joint black and dis- 

 tinctly more robust than the second, club distinct ; third joint one-third as 

 long again as the fourth, fourth and fifth equal, sixth somewhat shorter than 

 the seventh, sub-equal in thickness, eighth as robust as the seventh, nearly 

 twice as long as wide, joints of club increasing uniformly and very gradually 

 in length and thickness ; maxillary palpi rather slender, piceous- black, basal 

 joint piceo-testaceous. Prothorax arcuately, evenly, and very gradually 

 widening to the middle, where it is more than five-sixths as wide as the 

 head, and distinctly narrower than long ; sides thence moderately conver- 

 gent and rather feebly sinuate; anterior margin longer and more arcuate 

 than the posterior ; surface evenly convex, finely and evenly punctate ; 

 interspaces nearly as wide as the punctures, nearly flat, highly polished. 

 Elytra at base as wide as the head ; sides rather feebly divergent posteriorly, 

 much longer than the width at base, and somewhat feebly arcuate, must 

 strongly so posteriorly ; together broadly and very feebly emarginate behind ; 

 suture one-fourth as long again as the pronotum ; surface finely, feebly, and 

 evenly punctate ; interspaces much narrower toward the base, generally feebly 

 convex and highly polished. Abdominal segments decreasing uniformly and 

 very gradually in width, first nearly as wide as the contiguous elytra ; surface 

 very finely, somewhat closely and evenly punctulate ; transverse carinae not 

 cusped. Legs moderate, piceous-black throughout; first joint of the poste- 

 rior tarsi one-half as long again as the second, much shorter than the fifth, 

 joints two to four uniformly and rapidly decreasing in length. Body winged. 



Mule. — Posterior edge of the fifth ventral segment feebly emnrginate in its 

 middle third, emargination evenly rounded and scarcely measurable, con- 

 tiguous surface very feebly flattened ; sixth sinuate at apex, sinus narrower 

 and much more acutely rounded than the apices, sides nearly straight, 

 slightly more than three times as wide as deep ; seventh segment trans- 

 versely truncate at tip. 



Female. — Unknown. 



Length 3.1 mm. 



Northern California, 1. 



10(1. S. SUlJgriseus n. sp. (Schwarz MS.).— Form rather slender, sides 

 parallel. Pubescence slightly more plentiful on the head and elytra, through- 

 out rather long, flavo-cinereous in color. Head moderate, a little more than 

 twice as wide as long; interocular surface nearly flat, rather coarsely punc- 

 tate; punctures distinct and setigerous ; longitudinal elevation broad and 

 scarcely visible ; ocular lines meeting at one length in advance; antennae 

 short, equal in length to the width of head, third joint one-third as long 

 again as the fourth, joints four and five of equal length, club well developed, 



