288 On Some New 



S. nebiilo§us n. sp. — Form robust, convex: scales moderate in size, 

 obtusely oval, finely, feebly strigose, thin, slightly overlapping on the 

 elytra, pale brownish-cinereous, variegated with small spots of piceous- 

 brown in which the scales are sparser, but the small, dark setae more 

 abundant, and especiably obvious on the alternate intervals; pronotum 

 with the sides and a distinct median vitta paler; abdomen cinereous 

 with very dense scales and setae. Head moderate, very slightly wider 

 than long; eyes moderate, at two-thirds their length from the base; 

 front and surface of beak densely squamose and with numerous short, 

 robust, erect setae; beak distinctly shorter than the head, about as long 

 as wide; surface broadly impressed; median groove long, very fine; 

 frontal fovea elongate, narrow; antennae piceous: first joint of funicle 

 robust, slightly longer than the next two together, second very slightly 

 longer than the third, both slightly longer than wide. Prothorax 

 slightly wider than long; sides broadly, evenly arcuate, finely con- 

 stricted near the base and apex; the latter broadly arcuate, slightly 

 narrower than the base; the latter subtruncate; disk convex, finely, 

 very densely punctate; punctures nearly concealed; dark setae brown, 

 robust, numerous. Elytra about two-thirds longer than wide and 

 three-fourths wider than the prothorax; humeri rather prominent, the 

 sides being feebly sinuate for a very short distance behind them; sides 

 nearly parallel or excessively feebly convergent, and almost straight 

 in basal two-thirds, then acutely rounded behind ; base roundly emar- 

 ginate in the middle; disk convex, finely striate; striae impressed, finely, 

 closely, and obscurely punctate; intervals slightly unequal, rather un- 

 evenly convex; dark setae rather abundant, especially dense in widely 

 separated nuclei on the alternate intervals, short, robust, and inclined; 

 pale setae as usual, sparse, long, erect, and nearly three times as long as 

 the darker ones. Length 5.0 mm. 



California (San Diego 1). 



Esspeciallj remarkable, in abdominal structure, the last three 

 sutures being much more than usually bisinuate and posteriorly 

 angulate at the sides; the first suture has has a small, rounded, 

 rather abrupt, and deep median sin nation, and in the middle, 

 the second segment is fully as long as the next two combined. 

 The species is easily distinguishable by its unusually robust 

 form, rather prominent humeri, and very short, robust, dark 

 setae of the elytra. The seventh funicular joint is as long as 

 wide on the edge, but slightly transverse on the compressed side. 



S. alternans n. sp. — Form rather slender, convex, dark plumbeous- 

 gray with brown indiscriminately intermingled and not definitely 

 tesselate; pronotum slightly paler at the sides and with a wide median 

 vitta which is but very slightly paler; scales rather large, much larger 

 on the pronotum, rather densely placed, but not overlapping, rounded 



