280 G. H. HORN, M. D. 



Either sex of this species may be distinguished from the next two by 

 the very coarsely punctured and more shining elytra. The sexual 

 characters of the male serve for the best means of distinction. 



C. lugubris, Say, Journ. Acad. Ser. I, V. p. 246; Lee. Proc. Acad. 1S55, p. 

 273; imus Nm. Eut. Mag. V. p. 375; inornata (Pi/rochroa) Rand. Bost. Journ. 

 1838, p. 23 ; w?V/rican.s, Zeig. Proc. Acad. II, p. 46. — Black, shining. Head and 

 thorax very sparsely punetulate. Two basal joints of antennre paler. Elytra 

 less shining and densely punctured. Body beneath entirely black. Surface 

 sparsely pubescent. 



Male. — Antennse feebly sub-serrate. Apices of elytra without smooth yellow 

 space but rather deeply impressed. Length .24 — .32 inch; 6 — S mm. 

 Not rare in the Middle States and Canada. 



The male characters may be considered intermediate between the 

 preceding and succeeding species, for while the former has a yellow 

 space impressed and distinct, the latter having irregular yellow space 

 not impressed, this species has an impression only without the yellow 

 spot and greater convexity. 



C. funebris, n. sp. — Black, shining. Head punctured but neither densely 

 nor coarsely. AntennjB black. Thorax very sparsely but evenly punetulate. 

 Elytra less shining rather coarsely and densely punctured. Body beneath and 

 legs black, sparsely punctured. Surface sparsely clothed with brownish hairs. 



Male. — Antennse feebly sub-serrate. Tips of surface with yellow space, not 

 more convex than the rest of the elytra, similarly punctured, and not im- 

 pressed. Length .28 — .32 inch ; 7 — 8 mm. 



Specimens from the neighborhood of San Francisco are not rare in 

 cabinets. They occur according to Mr. Behrens on a Composite plant 

 with C. pwictii/afa, Lee. 



As in punrfultda the head is very distinctly punctured, and the 

 yellow spot at the apex of the male elytron is of irregular from, the an- 

 terior margin being sinuous. The female of this species might be 

 confounded with that of the preceding but may be known by its 

 head and thorax being very distinctly punetulate as well as the an- 

 tennae being entirely black. 



C. cyanipennis, Bland, Proc. Ent. Soc. Phil. 1854, p. 264. — Black, shining. 

 Head almost entirely smooth, antennse pale rufous or testaceous. Thorax very 

 sparsely and finely punetulate and with the head sparsely clothed with pale 

 pubescence. Elytra punctured, not coarsely nor very densely, surface with a 

 distinct blue color and clothed with short black pubescence. Body beneath 

 black, shining, femora black, tibise and tarsi pale yellow. Palpi similar in color 

 to the antennae. Length .28 — .30 inch ; 7 — 7.5 mm. 



Male. — Apex of elytron with a deep oval impression close to the suture and 

 rather distant from the apex. 



Occurs in Virginia. May be distinguished from the other species 

 in our fauna by the characters given in the table. 



