AMERICAN COLEOPTERA. 405 



S. Hornii, sp. n.; coriareu-i, J Horn, Tr. Am. Ent. foe. Hi., 330. — Very 

 closely allied to S. angustus, but much larger and with the dorsal punctuies 

 dee> lv impressed, extending to the apex. L. -68 inch. 



Cmada. (Rorn.) 



Horn identified this with C coriaceus from the figure in Duval's 

 Genera, which, though artistically perfect, is far from being scientifi- 

 cally accurate. The very peculiar intricate sculpture of the true C. 

 coiiace.w is well rendered in x\ube's Ic nographie. 



€OLYM BETES, Clairv. Ent. Heir, ii., p. 188. (Type striates.) 



Thorax not margined, sides oblique, straight, femora ciliate at api- 

 cal aimle; metasternum not emarginate at biise, broad, licinise trian- 

 gular, epistern-i reaching the coxal plates; scutellum punctate, elytra 

 transversely aciculate. 



% . four anterior tarsi sub-patelliform, joints 2--3 clothed with small 

 equal discs, anal segment triangularly emarginate. 



€. senl fills, (Harris) N. E. F. (182i»). p. 8; (Lee ) 1. e. p. .522, 15: denxus, 

 (Lee.) Prop. Phil. (1859), p. 2*2 ; 1. e. p. 522, Ifi.— Elongate oval, hardly diluted 

 behind beneath black, legs and margin* of the segin nts rufous; thorax ful- 

 vous with a transverse black discoidal fascia: elytra finely transversely striate, 

 margin* yellow : legs testaceous. L. *63 inch. 



■^ anterior tarsal claw sinuate ; anal segment emarginate, ventral segments 

 with a piliferous dot in middle. 



TVliddle States, Canada, Nebraska, Idaho, Oregon, California. . 



C strigatus, Lee. Ann. Lye. v.. p. 205 ; strigosus. Lee. 1. c. p 522, 1.3.— 

 Extremely close to C sculptilit, but larger, striae slightly more distant and legs 

 dark piceous. 



Californi i. 



This is scarcely separable from C. striatas of Europe, except by 

 the dark le^s. 



C. exsiratus, Lcc. 1. c. 522, 14. — Allied to C. sculptihs. from which it differs 

 only in the deeper sculpture of the thorax and deeper more approximate lines 

 on the elytra, giving them a silky lustre. L. -62 inch. 



Nebraska, Kansas, Oregon. Dacotah, Hudson's Bay. 

 All the specimens are $8 and it may be a dimorphous form of C. 

 scn'/>fi/is; C. do/abratus (Payk.) is recorded by Mannerheim (Bull. 

 Misc., 1853, p. 1M), but probably this is only O. exaraties. A 

 European specimen of C. dohbratus differs in being shorter and with 

 the sides of the thorax more rounded 



€. gr<enlail(licus, (Aube") Spec vi., p. 2.3.3; (Lee.) 1. c. n. 18; Drew*eni, 

 (Lee.) I. c. n 19. — Very close to C. scuiptilis, but smaller, and much narrower; 

 the sculpture on the thorax is much tiuer and more obsolete, the posterior 

 tibiic are less punctate. L. *56 inch. 



TRANS. AMER. ENT. 80C. (52) JUNE, 1873. 



