AMERICAN COLEOPTERA. 69 



sides, with the callosities more prominent and uot marked with a large 

 puncture as in that species; the 1st joint of the antennse is also a 

 little longer. 



STEREOPAI.PUS Ferfe'. 



S. priiinosns. — Dark lead-colored, clothed with fine cinereous pubes- 

 cence; prothorax carapanulate, very densely and finely punctulate, finely 

 channelled, less convex than usual; elytra more finely punctured than in the 

 other species; thighs frequently yellow, with the tips black. Length .28— .38 

 inch ; 7 — 9.5 mm. 



California, abundant; Mr. Crotch. Of the same form as the 

 Eastern species, but with the prothorax less convex and the elytra 

 more finely punctcred. 



EURT GENUS Ferte'. 

 Ell. eampannlatus.— Black, with a gray metallic lustre, clothed with 

 half erect i)ubesceuce; prothorax scarcely longer than wide, caiiipanulate, 

 deej)ly channelled, strongly constricted at tip, sides suddenly rounded before 

 the middle, then narrowed and nearly parallel, base margined, disc less con- 

 vex than usual, very densely punctulate, and with scattered large punctures; 

 elytra strongly and Ihickly punctured, marked with round spots of cinereous 

 pubescence; 2d joint of antenn« a little shorter than the 3d. Length .30 inch; 

 7.5 nun. 



Vancouver ; Messrs. Matthews, four specimens. Differs from E. 

 cousfrictiis by more robust form and the absence of very long scattered 

 erect hairs, and from all other species by the prothorax being broader 

 and more suddenly rounded in front of the middle. The 2d joint of 

 the antennse is also comparatively longer, being but little shorter than 

 the 3d. 



EUSTROPHIJS 111. 

 E. impressicollis. — Elongate oval, equally rounded at each end, not 



very convex, brown, thinly clothed with very fine cinereous pubescence; 

 finely and very densely punctulate, prothorax wider than long, semicircularly 

 rounded in front, feebly bisinuate and finely margined at base, with a basal 

 impression each side, which is marked by a longitudinal line- antennae 

 scarcely reaching the base of the prothorax, joints 6 — 10 gradually but slightly 

 wider. Length 6.5 mm. 



Vancouver Istand. This species has a perfectly regular elongate 

 elliptical form and is less convex than any other known to me. It is 

 also easily distinguished by the longer basal impressions of the pro- 

 thorax and by the last joint of the maxillary palpi being broader, and 

 more obliquely truncate; the spurs of the hind tibiae are compara- 

 tively a little smaller and the elytra are not striate. 



