1873] ZJD [Horn. 



H. seneomieans, n. sp. 



Oblong oval, snbdepresaed, surface brilliantlj' ffiiieoas, antenna and 

 legs rufous. Head sparsely punctured, front not concave supra-orbital 

 strife distinct. Thorax sparsely punctured on the disc, more coarsely at 

 the sides, marginal stria entire. Elytra sparsely punctured at apex, 

 humeral stria short, basal ; dorsals 1-4 entire, fifth abbreviated at base, 

 continued at apex by punctures, strife punctured except the basal portion 

 of the fourth ; sutural stria short basal half wanting, apical portion con- 

 tinued by punctures. Propygidium coarsely punctured, pygidium more 

 finely and less densely punctured. Anterior tibiie sub-quadridentate, 

 the upper tooth obsolete. Length .07 inch ; 1.75 mm. Plate V., fig. 1. 



This species is closely allied to venustus, from which it differs by its 

 more oblong form, smaller size, front not concave, more deeply impressed 

 elytral striae and much more co.vrsely punctured thorax. The two 

 species diff"er remarkably on comparison, and much more than the 

 description would seem to indicate. 



One specimen in the cabinet of ]Mr. Ulke, collected in the District of 

 Columbia. 



H, venustus, Lee. Ann. Lye. V., p. 163; Mars. Mon., 1853, p. 468, 

 pi. 14. fig. 1. 



Oval, moderately convex, brilliant greenish-blue. Antennae and legs 

 reddish-brown. Front concave, coarsely and sparsely punctured. 

 Thorax very finely and sparsely punctulate at middle, more coarsely 

 toward the sides. Elytra at tip with a few coarse punctures, surface 

 with four entire strite, a very short humeral, fifth and sutural extending 

 to middle. Propygidium coarsely and sparsely punctured, pygidium 

 more densely and finely. Anterior tibijB quadridentate, the second and 

 third teeth more distant. Length .10 inch ; 2.5 mm. 



Marseul states that the hind tibiaj of this species have a single termi- 

 nal spur, but two closely approximate spurs of equal length are distinctly 

 visible with sufficient power. 



One specimen has the fifth dorsal entire, but very fine at base. 



Georgia, Louisiana and Texas, very rare. 



H. subrotundus, Say. Journ. Acad., 1825, p. 39 ; Lee. Bost. Journ. 

 v., p. 60, pi. 4, fig. 2 ; Mars. Jtlon., 1853, p. 487, pi. 14, fig. 19. 



Broadly oval, black, shining, antennae and legs reddish-brown. Front 

 concave, sparsely punctured. Thorax finely ininctulafe on the disc, more 

 coarsely at the sides. Marginal stria distinct, close to margin. Elytra 

 with five entire strife, sutural extending in front of middle. Propygi- 

 dium sparsely punctured, pygidium nearly smooth, s^jarsely and minutely 

 punctulate. Anterior tibife multidenticulate. Length .08-. 10 inch ; 

 2-2.5 mm. 



Occurs over the entire country from Canada to Kansas, and southward 

 to Georgia and Texas. 



H. vernus, Say. loc. cit., p. 40; Lee. loc. cit. pi. 4, fig. 3; Mars. 

 Mon., 1853, p. 478, pi. 14. fig. 11. 



