78 MEMOIRS ON THE COLEOPTERA 



out the circumference. Pale piceous-brown in color, paler beneath, 

 polished, the elytra alutaceous; head very moderate, not one-half 

 as wide as the prothorax, smooth, very obsoletely punctulate, the 

 eyes moderate; antennae with the funicle very slender and somewhat 

 longer than the club; prothorax much more than twice as wide as 

 long, the sides very strongly converging and moderately arcuate; 

 surface wholly devoid of strigilate sculpture, feebly margined and 

 lobed at base; scutellum as long as wide, ogival; elytra having minute 

 and very close-set strigilation throughout, the lunules moderate, 

 those of the intermediate series similar but smaller; toward the sides 

 they become but little larger and are still in regular series; there are 

 also some impressed lines; the subsutural stria is impressed; sterna 

 as usual; post-coxal plaques rounded behind; second joint of the 

 hind tarsi more than twice as long as the first; intromittent spicule 

 of the male slender, with the usual small elongate-oval spatuliform 

 dilatation at the end. Length 1.68 mm.; width i.i mm. District of 

 Columbia (type); also one, not quite typical, being black and still 

 more pointed behind, from Southern Pines, North Carolina. 



piceus Csy. 



Elytra fully as long as wide or slightly longer, more parallel and always 

 very obtusely rounded at tip in both sexes, apparently less abbrevi- 

 ated and more obtuse in the female 8 



8 Lunules of the inner series on the elytra very small and widely separ- 

 ated in the series, those of the intermediate series very minute and 

 inconspicuous, on the flanks still small and in regular series. Body 

 oblong-oval, shining black, the elytra but just visibly opalescent or 

 alutaceous; under surface pale as usual; head half as wide as the 

 prothorax, minutely, sparsely punctulate, the eyes well developed; 

 antennae very slender, the third joint almost as long as the next 

 two, the club not quite as long as the funicle; prothorax distinctly 

 more than twice as wide as long, the sides only moderately con- 

 verging but strongly and evenly arcuate; basal margination and lobe 

 distinct; surface not distinctly strigilate; scutellum about as long as 

 wide, triangular, the sides feebly subangulate behind the middle; 

 elytra only about twice as long as the prothorax, almost semicir- 

 cularly rounded behind, the sides becoming subparallel basally, the 

 stria distinct; strigilation very fine, feeble and close-set; sterna as 

 usual; post-coxal plaques somewhat parabolic in form; second joint 

 of the hind tarsi more than twice as long as the first. Length 1.6- 

 1.75 mm.; width 0.9-1.1 mm. Iowa (Keokuk type) to Mississippi 

 (Vicksburg) and eastward to North Carolina, Rhode Island and 

 Massachusetts. Very common. Forty-seven examples. . ergoti Csy. 



Lunules of the inner series rather large, those of the intermediate series 

 small but distinct ; toward the sides they become long, nearly straight, 

 transverse, subanastomosing scratches, wholly different from those 

 of the preceding species. Body oblong-oval, polished, blackish- 

 piceous, the under surface dark rufous; head half as wide as the pro- 

 thorax; antennae rather thick, the club broader than usual and a 

 little longer than the funicle; prothorax with very indistinct though 

 evident strigilation, much more than twice as wide as long, the 



