408 Coleopterological Notices, VII. 



than long; eleventh much shorter than the two preceding, the apex only very 

 slightly oblique. Frothorax not quite as long as vride; strongly conic, the 

 sides almost straight; apex fully % ^-s -wide as the base, the latter scarcely 

 more than 14 vpider than the head; surface perfectly even. Elytra % longer 

 than wide, much more than twice as long as the prothorax and nearly twice as 

 wide, the sides rather more strongly arcuate just before the middle; apex 

 rather narrowly rounded; humeral plica strong and somewhat elongate, the 

 subhumeral impression conspicuous; basal fovese moderate; subsutiu-al impres- 

 sions almost obsolete, the suture not at all elevated toward base. Legs rather 

 short, the anterior and middle femora strongly clavate, the posterior moder- 

 ately. Length 1.25 mm. ; width 0.6 mm. 



Iowa. 



Dentiger maj'- be known among its allies of the present group by 

 its small size, relatively very large clj^peal tooth, small prothorax 

 and slightly transverse outer joints of the antennae. The sex of 

 the single specimen before me is not determinable, and in this 

 example the pubescence is almost entirely rubbed from the elytra. 



13. C extricatiim n. sp. — Moderately stout, polished and impunctate, 

 the head piceous-black ; pronotum black, paler at the apical margin, the elytra 

 dark rufo-testaceous throughout; legs pale reddish throughout, the antennae 

 dark rufo-testaceous; pubescence long and moderately abundant, rather pale 

 in color. Head somewhat large, semicircular behind the eyes, which are 

 moderately developed and not very convex, slightly wider than long ; clypeal 

 tooth large and strongly developed, slightly reflexed, rounded at tip. Antennss 

 short, barely as long as the head and prothorax, the club very stout but not 

 abrupt; second joint obconic, % longer than wide, Avider than the following; 

 three to six equal in width, cylindric; third and fourth equal and distinctly 

 wider than long; fifth and sixth equal and distinctly longer, fully as long as 

 wide; seventh I4 thicker, cylindric, J'^g wider than long; eighth }4. thicker 

 than the seventh and 1^ wider than long; ninth % thicker than the eighth, 

 transverse; tenth still slightly thicker and strongly transverse; eleventh stout, 

 obliquely pointed. Frothorax conic, as long as wide, the sides noticeably arcu- 

 ate; apex more than J^ as wide as the base, the latter .^^j wider than the head; 

 surface perfectly even throughout. Elytra rather short, % longer than wide ; 

 obliquely and rather acutely pointed behind from before the middle, not 

 quite twice as long as the prothorax and % wider; sides arcuate; humeral 

 plica large and moderately strong, the subhumeral impression large, elongate 

 and conspicuous; outer fovea very feeble, the inner strong; subsutural im- 

 pressions rather strong, elongate, the suture finely beaded basally. Legs mod- 

 erately developed, the four posterior femora quite moderately clavate, the an- 

 terior strongly. Length 1.2 mm. ; width 0.45 mm. 



Florida. 



This is the smallest species of the present section of the genus, 

 and may be readil}' known b}^ the stout and strongly transverse 



