180 THE CANADIAN ENTOMOLOGIST. 



bb. Tarsi with third joint lobed beneath. 



c. Bright green or bronzed species, pubescence fine, 

 recumbent, without intermixed bristles. 



d. Acuminate behind, the elytra narrowing from 

 in front of the middle. 



.16 inch acnminafus, Mann. 



dd. Form oblong, elytra parallel, or nearly so, to a 

 point about one-third from tip. 



.18 inch oblongus, Lee. 



cc. Blackish species, metallic tinge lacking or inconspicuous. 



e. Pubescence extremely fine, whitish and ochreous, 



intermixed with conspicuous black bristle-like 



hairs. .17 inch subcanus, Lee. 



ee. Pubescence whitish or yellowish, not intermixed 



with bristle-like hairs. .16 mch.hespenis, n. sp. 



In a cabinet arrangement it might be better to place oblongus 



between acumi?iatus and ceneolus, and to make suhcaiius follow Hesperus 



rather than precede it. This is the sequence I have adopted in the notes 



below. 



P. Lecontei, n. sp. — Oblong-ovate, very convex, bronzed, shining, 

 with extremely fine, sparse, recumbent pubescence. Head with fine, 

 well-separated punctures, front convex. Antennae gradually clavate, 

 passing the base of the thorax, blackish, the intermediate portion reddish; 

 first joint large, second subglobose, third nearly twice as long as the 

 second, but much more slender, fourth to tenth becoming broader, but 

 subequal in length, eleventh oval, pointed. Thorax broadest at base, 

 strongly narrowed anteriorly, sides scarcely arcuate, a rather deep 

 submarginal lateral impression, which curves inward at the hind angles ; 

 posterior angles large, acute, but with somewhat irregular outline, basal 

 marginal line distinct, fine, a small fovea in front of the scutellum ; disk 

 finely, regularly punctured, the punctures separated by a space about 

 equal to their own diameters. Elytra continuing the outline of the thorax, 

 becoming slightly broader to a point about one-third from apex, thence 

 rapidly narrowing, tips separately rounded ; an oblique impression near 

 the apex, which renders the declivity more gibbous ; surface deeply, 

 regularly and rather closely punctured in longitudinal bands, which leave 

 the sutural region and four vittse on each elytron nearly smooth. Beneath 

 rather coarsely and deeply-punctured abdominal segments becoming 

 gradually smoother in sequence. Legs closely punctured, all the femora 



