300 MEMOIRS ON THE COLEOPTERA 



tervals flat; lateral series widely spaced medially but not interrupted. 

 Length (cf) 7.2 mm.; width 3.1 mm. Colorado (Boulder Co.), 

 L. W. Casey laurana n. sp. 



Body notably narrow, elongate-suboval and convex 10 



10 Legs obscure rufous throughout, only the anterior femora black; 

 surface highly polished, very bright aeneous above, greenish-black 

 beneath; head rather distinctly less than half as wide as the pro- 

 thorax, the eyes somewhat prominent; antennae slender, fusco-tes- 

 taceous, the three basal joints clearer; prothorax slightly less than 

 one-half wider than long, rather widest at base, the sides broadly, 

 subevenly arcuate, somewhat more converging apically; apex two- 

 thirds as wide as the base, very deeply sinuate; basal angles right, 

 not rounded, the puncture but little nearer base than side; impres- 

 sions feeble but traceable; stria very fine; foveae completely impunc- 

 tate and subobsolete, the inner traceable as a short discal line; ely- 

 tra equal in width to the prothorax, very evenly and gradually ogival 

 in posterior half; striae fine, impunctate, sharp, not at all impressed, 

 the scutellar long; lateral series not interrupted; intervals perfectly 

 flat; striae coarse on the declivity. Length (c?) 6.7 mm.; width 2.8 

 mm. Minnesota (Duluth) otiosa n. sp. 



Legs piceo-rufous, all the femora black; surface shining, the elytra barely 

 less so in the female, cupreo-aeneous; under surface black, with green- 

 ish lustre; head rather well developed, somewhat more than half as 

 wide as the prothorax, with rather prominent eyes; antennae slender, 

 extending about to the thoracic base, black, the first three joints 

 and base of the fourth pale testaceous; prothorax only a third wider 

 than long, the sides nearly straight and subparallel, gradually round- 

 ing and converging before the middle; basal angles right, not rounded, 

 the puncture close to the base and barely further from the side; apex 

 two-thirds as wide as the base, only moderately sinuate, with broadly 

 rounded angles; impressions feeble, the stria very fine; foveae im- 

 punctate, indefinite, the inner broadly impressed and very shallow, 

 the outer small and obsolescent; elytra fully one-half longer than 

 wide, longer than in the male of otiosa, fully as wide as the pro- 

 thorax, very gradually ogival posteriorly; striae fine, barely at all 

 impressed, finely, closely, irregularly and very indistinctly punctu- 

 late, slightly coarser apically, the scutellar moderate; lateral series 

 narrowly interrupted; intervals almost flat. Length (9) 6.9 mm.; 

 width 3.0 mm. Utah (Provo), Wickham provoana n. sp. 



n Pronotum with the foveal region punctured at least to some extent; 

 posterior thoracic puncture very close to the angle 12 



Pronotum impunctate throughout, except rarely and in a peculiar man- 

 ner in the polita section, where the thoracic foveae are deep 14 



12 Outer fovea bordered externally by a short but rather prominent 

 ridge, not attaining the base; entire foveal region very finely, rather 

 closely punctured. Body elongate-suboval, convex, polished, the 

 elytra strongly shining in the female, black, with scarcely visible 

 bronzy lustre, the under surface piceo-rufous, the legs dark rufous 

 throughout; head well developed, evidently more than half as wide 

 as the prothorax, the eyes rather large and prominent; strioles deep 



