Coleopterological Notices, IV. 391 



gent and very obsoletely constricted near the apex. Elytra at base 

 rather more than one-third wider than the prothorax, nearly three 

 times as long, two-fifths longer than wide, parallel and straight at 

 the sides in basal three-fifths, then narrowly parabolic ; striae indi- 

 cated only by the finest and feeblest partings of the dense crust of 

 scales ; third interval a little more prominent and convex. Length 

 1.15 mm.; width 0.75 mm. 



Lower California (Cape San Lucas). Cab. LeConte. A minute 

 but distinct form, not closely allied to any other and readily recog- 

 nizable by the dense crust of ochreous-yellow scales, and the rather 

 prominent third interval of the elytra. It is distinctly stouter than 

 the Arizonian silaceus. 



10 S. corniculatus Fahr.— Sch. Gen. Cure, VII, ii, p. 309 (Tychius) ; 

 squamulatus Lee. : Proc. Am. Phil. Soc, XV, p. 173. 



Oblong-oval, rather robust, convex, black, the legs paler ; vesti- 

 ture dark gray, feebly and distantly mottled with whitish on the 

 elytra, and generally with a short whitish line at base of the third 

 interval; scales broadly oval, very dense, a tuft of erect squamules 

 above each eye, and with the usual erect recurved squamules on the 

 pronotum and elytra. Beak in the male a little longer than the head 

 and prothorax, rather thick, punctate and squamose, very feebly 

 arcuate, with the antennae inserted at apical two-fifths, in the female 

 distinctly longer, more slender and tapering, smooth, a little more 

 arcuate and nearly one-half as long as the body, with the antennae 

 inserted slightly behind the middle, the second joint of the funicle 

 one-half longer than the third. Prothorax small, one-fourth wider 

 than long, narrowed and feebly constricted near the apex. Elytra 

 at base one-half wider than the prothorax, very nearly three times 

 as long, one-half longer than wide, the sides straight and parallel 

 in basal half, then gradually acutely ogival ; striae fine. Length 

 2.0-2.4 mm.; width 0.9-1.1 mm. 



Massachusetts and Pennsylvania (near Philadelphia); Michigan — 

 Cab. LeConte. This is one of our most abundant eastern species, 

 somewhat resembling flavicans, but smaller and less mottled. It 

 agrees throughout with the description given by Fahraeus, which 

 was founded upon a Pennsylvania example sent to him by Zimmer- 

 man n. 



11 S. imbricatllS n. sp. — Narrowly oblong, convex, black throughout 

 and very densely clothed above with large broad ogival scales, which widely 



