274 GEO. H. IIORIS, M. D. 



C. thoracicani n. sp. — Oblong, moderately elongate, not broader in front, 

 reddish-brown, elytra with a common central cloud, surface slightly shining, 

 sparsely pubescent. Head rather coarsely, moderately densely punctate. An- 

 tennae attaining the middle of the thorax, ferruginous, club darker, four-jointed 

 with the terminal joint obtuse and paler. Thorax one-fourth wider than long, 

 broader in front of base, sides arcuate, hind angles sharply rectangular, surface 

 •with coarse, moderately deep simi^le punctures not densely placed, with finer 

 punctures in the intervals. Elytra a little wider between the humeri than 

 the base of the thorax, broader behind, sides moderately arcuate, sutural stria 

 entire but indistinct near the base, surface with a faint evidence of a strial 

 arrangement of larger punctures near the base and sides, the intervals a little 

 more finely but not very densely punctate. Abdomen moderately densely 

 punctured, metasternum coarsely but sparsely punctate. Length .10 inch ; 

 2.5 mm. (PI. VI, fig. 7). 



Male. — Anterior tibiae straight, the outer apical angle obliquely truncate, the 

 spurs lobed at the side, the tarsi dilated. Middle and hind tibise straight, the 

 tarsi slender, slightly compressed. Posterior femur without tooth. 



Female. — The anterior tibise are more slender than the male, the outer apical 

 angle obliquely truncate, the spurs slender, the tarsi filiform. Otherwise as 

 in the male. 



This species, independently of its sexual characters, is easily 

 known by the base of thorax being evidently narrower than the 

 elytra at base, and the surface punctured after the manner of 

 Heterodei'es. 

 . Two specimens, one S , Missouri; 9 , District of Columbia, (Ulke). 



C. asperatuni n. sp. — Oblong-oval, broader in front, moderately convex, 



piceous, slightly shining, legs rufous, surface sparsely coarsely pubescent. 

 Head not densely punctate. Antennae piceous paler at base, attaining the 

 middle of thorax, club four-jointed the terminal joint longer than the tenth, 

 oval at tip and paler. Thorax one-fourth wider than long, sides feebly arcuate 

 and narrowed to the front, base truncate, hind angles broadly rounded, sur- 

 face moderately densely submuricately punctured at the base and sides, more 

 sparsely at the middle and front of disc. Elytra a little narrower at base 

 than the thorax, sides feebly arcuate and gradually narrowed to tip, sutural 

 stria moderately deep and entire, surface moderately densely and rather 

 coarsely submuricately punctured, presenting a rough appearance. Abdomen 

 not densely puuctured, metasternum at sides coarsely punctured. Length .08 

 inch ; 2 mm. 



Male. — Anterior tibise gradually broader, the outer apical angle distinct, 

 the spurs lobed at the sides, the tarsi dilated. Middle and posterior tibise 

 straight, the tarsi slender and nearly as long as the tibise. Posterior femur 

 without tooth. 



Female. — Anterior tibise more slender, the spurs simple, the tarsi filiform. 

 Otherwise as in the male. 



This species is nearly of the form and size of putum but is always 

 piceous, the surface more roughly sculptured and the hind angles of 

 thorax more rounded. 



Occurs in Michigan, Canada, Illinois and District of Columbia. 



