400 Coleopterological Notices, IV. 



becoming quite parallel toward base ; striae fine, deep and abrupt toward the 

 suture. Length 2.5 mm. ; width 1.1 mm. 



Iowa. 



The only species with which this can be compared are flavicans 

 and scapalis, but it differs greatly from the former in its longer 

 prothorax, with even circular and distinct punctures and slender 

 sparse squamules toward the middle ; in flavicans the pronotum is 

 coarsely, densely squamose throughout, and the sculpture consists 

 of more or less pronounced oblique furrows, caused by the coales- 

 cence of the punctures. Scapalis is a much larger, stouter species, 

 with different color and structure of the vestiture. 



24 S. scapalis Lee— Proc. Am. Phil. Soc, XV, p. 168 (Desmoris). 



Oval, convex, black; legs dull-rufous, blackish toward base; ves- 

 titure consisting of ochreous-yellow scales, moderately dense and 

 forming subtransversely wavy condensed areas on the elytra. In 

 the male the beak is densely punctured, moderately slender, rather 

 longer than the head and prothorax, the antennae inserted slightly 

 beyond the middle, the basal joint of the funicle equal to the next 

 two ; in the female it is slightly longer but scarcely more slender, 

 smoother, almost straight, the antennae inserted scarcely at all be- 

 hind the middle, the basal joint of the funicle distinctly longer than 

 the next two, the club longer and narrower. Prothorax very nearly 

 as long as wide, widest behind the middle ; sides broadly arcuate, 

 convergent and sinuate toward apex ; disk rather coarsely, deeply, 

 densely punctate. Elytra at base about one-third wider than the 

 prothorax, scarcely more than twice as long, the sides straight and 

 parallel in basal third, then gradually ogival ; striae narrow, deep, 

 abrupt, obscurely punctate at the bottom. Length 3.Y-4.2 mm.; 

 width l.T-2.0 mm. 



Illinois. One of the largest species of the genus, greatly resem- 

 bling flavicans in the color and disposition of the elytral vestiture, 

 but very different in its more elongate prothorax. It differs radi- 

 cally from constrictus, with which it has been associated, in the 

 legs pronounced sexual differences in the beak, and in the peculiar 

 arrangement of the elytral scales. 



25 S. flaTicans Lee— Proc. Am. Phil. Soc, XV, p. 171. 



Oblong-oval, rather stout, convex, blackish, with the legs paler, 

 densely clothed with oval scales, ochreous to white in color, strongly 



