AMERICAN COLEOPTERA. 281 



C. fulvipes, Nin. Ent. Mag. V, 375; ;Lec. Jour. Acad. Ser. II, Vol. I, p. 83. 

 Black, shining. Head and thorax nearly smooth, antennae fuscous, two basal 

 Joints paler. Elytra black with a slight tinge of glaucous blue, surface rather 

 coarsely and densely punctured. Body beneath, finely punctured. Legs in- 

 cluding coxre, entirely pale yellow. Lcgth .26 — .32 inch ; 6.5 — 8 mm. 



Male. — Apex of elytra with a yellow rounded space, more convex and less 

 punctured than the rest of the elytra, and with an elongate oval impression at- 

 taining the ape.^c of the suture. 



This species occurs, but uot abundantly, in Northern New York and 

 Canada. 



C. labiata, Say, Jour. Acad. 1827, p. 247; Lee. Proc. Acad. 1855, p. 273; infu- 

 mafa, Htz. (Pi/rochroa) Trans. Am. Phil. Soc. Ill, 275; marghiicolUs, Zieg. Proc. 

 Acad. II, p. 47. — Black: feebly shining. Head sparsely punctured, labrum 

 and anterior margin of front, yellowish. Thorax pale rufous with a broad 

 median black space, surface very sparsely punctulate. Elytra black rather 

 densely and coarsely punctured and sparsely clothed with short black hairs. 

 Body beneath black distinctly punctured. Legs black, trochanters and bases 

 of femora paler. Length .28 — .30 inch ; 7 — 7.5 mm. 



Male. — Apices of elytra with rather deep oval impression closer to apical 

 than sutural margin, 



This species occurs from the Middle States, westward and in Dacota ; 

 is not rare. 



C. palchra, Lee. Jour. Acad. Sei. II, Vol. I, p. 83 ; Proc. Acad. 1855, p. 273. 



This species has all the characters of the preceding one and is dis- 

 tingiiished only by its pale yellowish legs. The apices of the male 

 elytra are similarly impressed. Length .28 — .32 inch; 7 — 8 mm. 



Occurs from Ohio to Dacota. 



C. Lewisii, n. sp. — Black, shining. Head very sparsely punctulate, antennre 

 and palpi piceous. Thorax rufous shining, finely and sparsely punctulate. 

 Elytra black, sparsely clothed with pale pubescence, surface densely punc- 

 tured, punctures slightly transversely confluent. Body beneath and legs 

 black, sparsely pubescent and punctulate. Length .28 inch; 7 mm. 



Male. — .\pice3 of elytra with smooth, elevated, yellow space with an elongate 

 impression parallel with the suture. The impressed space black. 



The characters given in the table, abundantly distinguish this spe- 

 cies from any other in our fauna. The female is however difficult to 

 distinguish but may be known from all of those, with a red thorax by 

 the much finer elytral punctuation and from pnnctu/afa^ with which it 

 agrees in the latter ros])ect by the smooth head and thorax. 



This species is dedicated to Dr. Sanjuel Ijcwis, as an acknowledge- 

 ment of the many favors received. It was collected in Colorado. 



C. punctulata, Lee. Ann. Lye. V, 151 ; Proc. Acad. 1855, p. 272. — Black, shi- 

 ning. IK-:ui rather coarsely punctulate, antennae black. Thorax rufous very 

 sparsely i>uncluhile. Elytra black rather densely punctured and sjiarscly 



