North American Rhynchophora. 25T 



divergent, but they appear to be quite free throughout. It is 

 easily distinguishable by its nearly uniform dark grayish color, 

 coarse scales, and the form of the prothorax, this being slightly 

 narrower at base than at apex. 



S, arcuatu§ n. sp. — Rather robust, convex ; scales small, rather 

 pale, grayish-ochreous, with a narrow, dark, and even band crossing the 

 elytra in a very feebly and posteriorly arcuate course at the summit of 

 the declivity; other markings very indistinct and suffused, the sides of 

 the prothorax and an imperfect, elongate oval ring at the base of each 

 elytron paler; abdomen very sparsely squamose toward apex, sparsely, 

 setose. Head and beak as long as the prothorax; the former short and 

 broad; beak gradually narrowed to apex, slightly longer than the head; 

 alse not at all dilated; front with an elongate puncture between the eyes; 

 beak broadly elevated along the middle third, the elevation broadly 

 concave, more deeply so and finely carinate between the scrobes,^ 

 glabrous near the apex and with a small declivous impressed triangular 

 area at tip; scrobes very short, broad, deep, and cavernous, moderately 

 convergent, vanishing at much more than their own length from the 

 eyes; antennae long and rather slender; scape very long, slender^ 

 strongly arcuate; funicle scarcely as long as the scape, first joint but 

 slightly longer than the second, the latter as long as the third and 

 fourth together; outer joints slightly more robust; club scarcely more 

 than one-fourth as long as the scape. Prothorax subcylindrical, slightly 

 wider than long, broadly and feebly constricted in the apical third; 

 sides broadly arcuate in the middle ; base transverse, very slightly 

 wider than the apex; the latter broadly and extremely feebly sinuate 

 in the middle; disk finely, very sparsely and unevenly punctate, with 

 small, sparse, arcuate subrecumbent setae. Elytra inflated, convex, 

 rather acute at apex; sides arcuate; disk one-third longer than wide, 

 slightly more than twice as wide as the prothorax, slightly tumid along 

 the suture posteriorly, finely striate; striae finely and distantly punc- 

 tate; intervals broadly and feebly convex, each with a single and oc- 

 casionally unevenly double line of small, slender, arcuate, subrecumbent 

 piceous setae. Legs rather long, densely scabrous; femora rather 

 strongly clavate. Length 6.5 mm. 



California (Mendocino Co. 1). 



In this species the claws are rather robust, somewhat feebly 

 divergent, although very distinctly separated throughout their 

 length. 



S. aiig[u§tulus n. sp. — Form very slightly robust, rather depressed 

 above; scales dark reddish-brown, two or three very small spots near 

 the base of each elytron and a posteriorly arcuate band near the 

 apical declivity which is slightly broken to the rear at the suture,, 

 blackish; sides and narrow median line of the prothorax just visibly 



