1873.] O-iO [Horn. 



The type and only specimen known to me, was procured by Maj. Leconte 

 from 3Ielslieimer, by whom it was said to be from Pennsylvania, but as 

 other insects have been obtained from the Melsheimer cabinet with erro- 

 neous localities, this might be looked upon with some suspicion. 



S. pensylvanieus, Payk. Mon., p. 62, pi. 5, fig. G ; Lee. Bost. Journ. 

 Y., p. 71, pi. 0, fig. 5 ; Mars. Mon., 185."), p. 435, pi. 17, fig. 63. 



Form broadly oval, robust, color variable from brilliant metallic-green 

 to bronze. Head very sparsely and finely punctulate, frontal stria 

 broadly interrupted. Thorax smooth with a few moderately coarse 

 sparsely placed punctures along the sides distant from the margin, finer 

 near the base, and a narrow basal series of rather coarse punctures ; 

 margin sparsely fimbriate. Elytra coarsely but sj^arsely punctured at 

 the apical half, not extending to the first dorsal stria. ; external sub- 

 humeral distinct, humeral fine, oblique, internal subhumeral longer than 

 the first dorsal, strongly impressed, but not joining the humeral ; first 

 dorsal extending two-thirds to apex, second shorter, third very short, but 

 variable, sometimes subobsolete, fourth shorter than the second, broadly 

 arching at base and joining the sutural which is entire. Pygidium aud 

 propygidium coarsely and rather densely punctured. Prosternum 

 convex in front, strise divergent and ascending. Anterior tibiae 

 coarsely serrate, middle and hind tibiie biseriately spinulose. Length 

 .16-. 20 inch ; 4-5 mm. 



Occurs everywhere in the United States east of the Rocky Mountains. 



S. oregonensis, Lee. Bost, Journ. V., p. 75, pi. 5, fig. 12 ; Mars. 

 ]Mon., 1855, p. 397, pi. 16, fig. 36 ; var. distiiiguendus, ]\Iars. loc. cit. p. 

 441, pi. 17, fig. 68 ; spuj'cus. Lee. Col. Kansas, 1859, p. 7 ; sejunctus, 

 Mars. ]\Ion., 1862, p. 449, pi. 12, fig. 10. 



Black, shining, submetallic. Head spai-sely punctured, stria inter- 

 rupted at middle. Thorax smooth at middle, toward the sides sparsely 

 and coarsely punctured iu a narrow space, punctures finer posteriorly, 

 margin much smoother, a few coai'se punctures along the base, obsolete 

 at middle. Sides of elytra very sparsely punctured, dorsal surface rather 

 densely xJunctured at apical half, punctures variable iu their extent be- 

 tween the striaj ; external subhumeral short distinct, oblique humeral 

 finer aud joining the internal subhumeral, which is longer than the first 

 dorsal ; dorsal striae subequal, extending slightly beyond the middle, 

 fourth arching at base and joining the sutural, which is usually entire, 

 sometimes interrupted near the base. Pygidium and propygidium 

 coarsely and rather densely punctured. Prosternum broad, striie diver- 

 gent in front and scarcely ascending. Anterior tibiae finely denticulate, 

 middle and hind tibiie finely biseriately si^inulose. Length .12-. 18 inch ; 

 3-4.5 mm.' 



Var. oregonensis, Lee. {spurcus, Lee), fourth dorsal stria arching at 

 base and joining the sutural, which is entire and strongly impressed. 

 Punctures of elytra exteuding to the base in the entire first interstria, 

 and in the outer portion of the second. Oregon, Utah. 



