North American Rhyncliopliora, 285 



third and fifth elytral intervals slightly maculate with paler, sides of 

 pronotum paler, median vitta not distinct; abdomen very densely 

 squamose and setose throughout, slightly paler; scales of upper surface 

 small, oval, slightly longer than wide, convex, excessively finely, feebly, 

 and indistinctly strigose. Head slightly transverse; surface of head and 

 beak flat, densely punctate, sparsely squamose, densely covered with 

 bristling setae; scales sparser, smaller, and cupreous toward apex; beak 

 robust, shorter than the head', distinctly wider than long, finely carinate 

 above at each side, feebly subcarinate in the middle at apex; frontal 

 fovea narrow, deep, elongate, attenuate anteriorly, becoming obsolete 

 before attaining the middle of the beak; eyes very large, feebly convex, 

 much longer than wide; antennae moderate; first joint of funicle dis- 

 tinctly more robust, as long as the next two together, second longer 

 than the third. Prothorax very slightly wider than long, cylindrical, 

 widest distinctly before the middle, where the sides are very feebly arcu- 

 ate, thence feebly convergent and straight to the base, abruptly, finely, 

 and distinctly constricted at the sides at apical sixth; apex and base 

 equal, the former subtruncate, the latter very feebly arcuate; disk con- 

 vex, rather coarsely, deeply, and densely punctate; fine, short, dark se- 

 tae rather numerous toward the middle; median vitta represented by a 

 very narrow, feebly defined single line of slightly paler scales. Elytra 

 twice as long as wide, acutely rounded at apex, not one-half wider than 

 the prothorax; sides parallel, straight; humeri slightly oblique; disk 

 convex, finely striate; strias rather coarsely, deeply and very distinctly 

 punctate throughout; intervals nearly equal, almost flat; dark setae 

 numerous, erect, fine and capillary; white setae very sparse, distinct. 

 Unguicular appendage fine, long, distinct and setiform. Length 5.0 



California (Napa Co. 1). 



Easily distinguishable by its narrow elongate form, dark brown 

 color, and very distinct elytral punctures, these being more dis- 

 tinct by far than in any other species of this group, except Ms- 

 pidulus. In general characters it resembles the prominens 

 group, and notably explicitus. 



S. occidentalis n. sp. — Elongate; elytra somewhat robust and de- 

 pressed, densely clothed with small, rounded, cinereous scales, variegated 

 with maculae of pale brown on the third, fifth and seventh elytral inter- 

 vals; scales smaller, arranged transversely and very much sparser on 

 the median portions of the pronotum; abdomen densely setose and 

 squamose, the male with a denuded spot at apex. Head distinctly 

 transverse, rather large; eyes large, oval, rather convex; front and beak 

 flat, rather finely and densely punctate, rather sparsely and finely 

 squamose and thickly bristling with conspicuous, erect, whitish setae ; 

 lateral and apical carinae of beak feeble; frontal fovea fusiform, deep. 



