270 GEO. H. HORN, M. I>. 



a little broader than the anterior and distinctly spinulose externally, the spurs 

 slightly dilated from middle to base, tarsus distinctly compressed. Posterior 

 femur slightly crenulate along the lower edge and with a small acute tooth 

 near the tip arising from the outer edge, the tibia arcuate and with an obtuse 

 tooth near the base, the spurs slender at tip, rather suddenly broader at basal 

 half, tarsi slightly compressed. (PI. VI, fig. 10). 

 Female. — Unknown in nature. The posterior femora are simple, (Tournier). 



In this species the antennal club may properly be called four- 

 jointed, the terminal joint rounded or oval at tip. The second and 

 third joints are equal in length the latter a little more slender. I have 

 not made any direct comparison of our specimens with the European 

 species to which this is referred, but I have no doubt of their identity 

 from the excellent figures given by Tournier. 



Two % specimens, Massachusetts, (Blanchard), New York, (Ulke). 



C paradoxum n. sp. — Oblong-oval, very little more obtuse in front, 

 piceous, very feebly shining, sparsely pubescent, legs paler. Head densely 

 punctured. Antennae piceous, paler at base, attaining the middle of the thorax^ 

 club four-jointed. Thorax and elytra as in bidentatum. Body beneath moder- 

 ately densely punctulate. Length .08 inch; 2 mm. 



Male. — Anterior tibiae very little broader to the tip, the outer apical angle 

 distinct, the spurs slightly lobed at the sides, the tarsi filiform. Posterior 

 femora with a slight angulation near the apex and obsoletely crenulate at 

 middle, the tibiee very sliglitly arcuate and at base a little more rapidly 

 narrowed presenting a slight angle. (PI. VI, fig. 14). 



Female. — Unknown. 



This species might readily be mistaken for hidentatiim or dentatum 

 by its superficial characters, the sexual character of the male will 

 distinguish it from either. 



Pennsylvania and District of Columbia, (Ulke). 



C. Hubtoardi n. sp. — Closely resembling dentatum in form and color but 

 a little more coarsely pubescent. Thorax and elytra very nearly equally 

 punctate and somewhat more coarsely than in dentatum. Antennal club 

 distinctly five-jointed, the seventh joint being also broad. Length .10 inch; 

 2.5 mm. 



Male. — Anterior tibiae gradually broader to tip, inner margin straight, the 

 outer apical angle slightly acute, spurs as in dentatum, tarsi rather broadly 

 dilated. Posterior tibise slightly arcuate, the femora with a slender tooth of 

 variable length arising from the inner margin near the tip, the tooth thin but 

 band-like with one of the terminal angles slightly prolonged. Middle and 

 posterior tarsi slightly compressed. (PI. VI, fig. 13). 



Female. — Unknown. 



I know of no means by which this species may be distinguished 

 from denmtum except by the sexual characters of the male. It is 

 highly probable that the female will have a slight tooth on the femur 

 near the tip. The punctuation here is rather coarser than in dentatum 



