North American Rhynchophora. 277 



greater than the prothorax; disk moderately convex, even, shghtly 

 more than twice as long as wide, finely striate; striss feebly impressed, 

 rather finely, deeply, and closely punctate. Abdomen convex. Legs 

 sparsely clothed with fine whitish hairs. Length 5.3 mm. 



California (Marin Co. 2). Mr. G. W. Dunn. 



Easily distinguished from californicics Horn by its much sparser 

 vestiture, composed of scales which are much more elongate, 

 by its longer second ventral segment, and many other characters. 

 In californicus the abdomen beneath is densely clothed with 

 scales throughout, while in ferrugineus these become very 

 sparse toward apex, where they are replaced by fine sparse hairs. 



S. einereus n. sp. — Form rather elongate, convex, uniformly and 

 sparsely covered with rather robust cinereous scales which are well sepa- 

 rated on the head and elytra, denser on the median line of the pronotum 

 toward base, slightly sparser toward the abdominal vertex. Head and 

 beak conical; alse almost obsolete; front rather convex; beak as long as 

 the head, broadly impressed and with a very minute fovea near the 

 base, broadly, feebly, arcuately impressed at apex; antennae long and 

 slender; basal joint of funicle nearly as long as the next two together, 

 joints three to seven uniformly and rather rapidly decreasing in length, 

 the latter longer than wide; eyes prominent, finely granulated. Pro- 

 thorax widest at basal third, where the sides are rather strongly 

 rounded, thence convergent and nearly straight toward base and apex, 

 not perceptibly constricted near the apex; base and apex transversely 

 truncate, the former distinctly the wider; disk convex, one-third wider 

 than long, rather finely and densely punctate; scales slightly longer and 

 denser at the sides and in the middle. Scutellum small. Elytra ob- 

 long, very slightly wider at posterior third; humeri rather prominent; 

 narrowly rounded, one-third wider than the prothorax; disk nearly 

 twice as long as wide, acute at tip, rather convex, very finely striate; 

 striae scarcely at all impressed, finely and not very closely punctate; 

 intervals fiat, each with a row of erect scales. First ventral suture ab- 

 ruptly emarginate in circular arc in middle two-fifths; second segment 

 fully as long as the next two together. Abdomen rather strongly con- 

 vex. Legs moderate; femora rather sparsely squamose; tibiss more 

 densely and finely pubescent; anterior tibiae strongly arcuate within 

 toward apex. Length 6.0 mm. 



California (Lake Tahoe 1). 



Rather more robust than either californicus ov ferrugineus, 

 from both of which it is easily distinguishable by the characters 

 given. 



S. cra§sicorni§ n. sp. — Rather slender; integuments black; tibiae, 

 tarsi, and antennae dark rufous; rather densely clothed with somewhat 



