AMERICAN COLEOPTERA. 303 



at apex and the form of the free edge of the coxal plate- In exoktns 

 the free edge is more prominent and is exactly rectangular, the angle 

 being very distinctly marked ; in the present species the coxal plate is 

 shorter and the free edge rounded. 



The Florida specimens were presented me by Mr. V. 11. Uhler, of 

 IJaltimoro to whom I dedicate it, as an evidence of appreciation of his 

 labors in another order of insects, as well as for his kindness in the 

 continued gift of specimens. 



COPTOSTETHUS, Wollast. 



C. 1 americanus, n. sp. pi. IV, fig. 3. — Brown opaque, sparsely clotlied witli 

 silvery pubescence. Head opaque, granulose ; frontal j)late narrowed, rounded 

 anteriorly. Antennse slender longer tlian half the body, second joint longer 

 than half the third, joints three to eleven gradually increasing in length. tJie 

 latter not being terminated by a false joint. Thorax very slightly longer than 

 wide, very convex, opaque and finely granulate, sides rounded narrowing in 

 front and at base, hind angles short, subacute not carinate; lateral margin in 

 its entire length rounded, suture obsolete and inferior. Scutellum transversely 

 cordiform. Elytra elongate oval, very convex, strise punctured, intervals 

 grauulately rugose, sides rounded and rapidly attenuate to ape^. Body be- 

 neath opaque granulose, similar in color to the upper surface. Legs pale brown. 

 Length .14 inch ; 3.5 mm. 



This insect agrees with all the characters given by Candeze, of the 

 genus in which it is placed with doubt, differing only in the coxal 

 plate being less suddenly dilated and the antenna) not terminated by 

 a false joint. These characters seem hardly of sufficient moment to 

 cause its separation generically, although the comparison of a type of 

 Cuptostetlms, with this one night show sufficient cause for placing it in 

 a new genus. The body is apterous and the elytra apparently connate. 

 The elytra are elongate oval, very convex the humeri broadly rounded 

 and paler than the rest of the surface. The prosternal sutures are 

 tine and parallel and the prosternal spine short and very obtuse at tip. 

 The tarsi of the present specimen are all mutilated one only having 

 four joints, the characters agreeing i'ully with C'lpfosfefhns. 



The nniijue before me was obtained by Dr. Samuel Lewis, from 

 liouisiaiia. 



CRYPTOHYPNUS, Esch. 



C. Sanborni, n. sp. — Black shining, moderately depressed, sparsely clothed 

 with with short black hairs. Head coarsely and sparsely punctured. Anlcn- 

 uss brownish at tip, basal half red. Thorax longer than wide, equally but feebly 

 narrowed at aj)ex and base, sides moderately rounded, hind angles strongly 

 divergent, slender, acute and carinate; disc with median line feebly impressed 

 spiirsely und Hnely punctured. Elytra as broad at base as thorax, gradually 

 broader behind the middle, striate, striae punctured, intervals fiat sparsely 



