264 GEO. H. IIORIV, M. D. 



bluish tinge, intervals very finely and sparsely punctured. Length .44 — .52 

 inch; 11 — 13 mm. 



lu the specimens from the Southern States, which are by far the 

 best representatives of tlie species, the thorax is more decidedly sinu- 

 ate behind, and the hind anii,les moderately prominent. 



Occurs from Canada to Texas. 



17. V. glanon^, Lee. 



This species is closely allied to the preceding Jind difFu'rs in the 

 labrum being distinctly emarginate, the thorax evidently sinuate near 

 the base, the elytral strijx? deeper and more closily punctate. 



The color is variable. The head and thorax are usually bluish- 

 green, the elytra bluish as in tricolor. A specimen in my cabinet is 

 however, entirely green as in nehraskensis. Length .44 — .50 inch ; 

 11—12.5 mm. 



Chaudoir says the labrum is truncate, but it will be found as stated 

 above. The male specimen of which he makes special mention is 

 now before me, and it bears his own label, {sen'cinitens). 



Occurs at Fort Yama, California. 



18. C. simillimns, Cbaud. 



Closely allied to the two preceding, differing from nebraskensis in 

 having the thorax distinctly sinuate posteriorly, and the hind angles 

 acute. From glaucua it differs in its truncate labrum. The thorax 

 is relatively narrower than in either and more decidedly narrowed 

 posteriorly, and the hind angles more acute. Its form is more slender 

 also, and recalls obsoletus. The head and thorax are green, the elytra 

 black with slight bluish tinge. Length .46 inch; 11.5 mm. 



The unique before me is from Chaudoir, collected at San Francisco, 

 California. 



19. C nebra»kensis, Lee.— Body beneath black, legs pale, body above 

 green, similar to aericeus but slightly darker. Head minutely punctulate, 

 antennae rufous, paler at base, labrum truncate. Thorax broader than long, 

 sides moderately arcuate, posteriorly not sinuate, hind angles distinct, not 

 acute, base and apex nearly equal, surface coarsely punctured, sparsely on the 

 disc, more finely and densely at sides and base, sparsely pubescent. Elytra 

 finely striate, striae finely punctured, intervals flat, finely and sparsely obso- 

 letely punctate, and with rufoos pubescence, basal line rounded at humeri. 

 Prosternum margined at tip, coarsely punctured in front, episterna very 

 obsolelely punctured. Metasternal episterna long, margined, and moder- 

 ately densely punctulate. Abdomen as in niger. Length .42 — .52 inch; 10.5 

 — 13 mm. 



This species resembles hrevilahris in form, but differs in color and 

 punctuation of prosternal episterna. 



