252 MEMOIRS ON THE COLEOPTERA 



somewhat irregular. Length (cf 9 ) 8.0-8.5 mm.; width 3.7-4.0 

 mm. Nebraska solita n. sp. 



Body more narrowly suboval, much smaller, moderately convex and shin- 

 ing, dull brassy-bronze in lustre, the under surface and legs black; 

 elytra more strongly reticulate in the female; head very nearly half 

 as wide as the prothorax, the eyes slightly more convex than in 

 solita, the strioles fine; antennae black, the two basal joints paler; 

 prothorax but slightly more than one-half wider than long, nearly 

 as in the preceding throughout but less narrowed from base to apex; 

 elytra one-half longer than wide in both sexes, not or just visibly 

 wider than the prothorax, obtusely rounding in apical third, the 

 sinus very shallow; striae very fine, impunctate as usual in this sec- 

 tion, the scutellar moderate; lateral series widely separated, only 

 narrowly interrupted medially; intervals feebly convex and very 

 distinctly irregular or faintly nodulate. Length (cf 9 ) 6.6-7.0 mm.; 

 width 2.8-3.2 mm. Colorado. Levette collection. Three speci- 

 mens reducta n. sp. 



Body more evenly and less narrowly elongate-oval, also more convex, 

 smoother and more shining than in the two preceding, black, with 

 scarcely perceptible metallic lustre; under surface and legs black; 

 head very nearly half as wide as the prothorax, the eyes moderately 

 convex, the strioles very small, short and fine; antennae slender, 

 black, the two basal joints paler, the medial joints on the compressed 

 side (cf ) about twice as long as wide; prothorax slightly more than 

 one-half wider than long, the deeply sinuate apex with prominent 

 and only moderately blunt angles, much narrower than the base; 

 sides evenly and feebly arcuate, finely reflexed from base to apex, 

 parallel and feebly arcuate basally; surface smooth, with barely a 

 trace of the feeble subbasal impressions, more flattened postero- 

 externally than usual; elytra one-half (cf) to less (9) longer than 

 wide, not evidently wider than the prothorax in either sex, polished 

 (cf ), alutaceous (9 ); striae very fine and simple, the scutellar long, 

 very fine; lateral series rather widely and sharply interrupted medi- 

 ally; intervals nearly flat throughout the length, having merely the 

 barest trace of alternate irregularity. Length (cf 9 ) 6.8-8.0 mm.; 

 width 3.3-3.6 mm. Kansas and Colorado. Three examples. 



ellipsis n. sp. 



10 Prothorax very short, nearly twice as wide as long, the apex fully 

 three-fourths as wide as the base. Oblong-oval, moderately con- 

 vex, very shining and bright aeneous above; under surface and legs 

 piceous to black, not metallic; head not quite half as wide as the 

 prothorax, the eyes not large but prominent, the strioles moderate; 

 antennae notably slender, black, with rufescent basal joint; pro- 

 thorax four-fifths wider than long, the apex feebly sinuate and with 

 broadly rounded angles; sides feebly, evenly arcuate and greatly 

 converging from base to apex; surface smooth, with nearly obsolete 

 transverse impressions, the subbasal impressions fine and feeble, 

 the inner striolate, the outer oblique; puncture in the angle coarse; 

 elytra two-fifths longer than wide, slightly wider than the prothorax, 

 obtusely rounded behind, with shallow sinus; sides broadly arcuate; 



