106 Goleopterological Notices. 



at apical sixth or seventh, obsolete at basal third, sometimes also with traces 

 of an incomplete third discal stria ; disk polished, not reticulate except 

 coarsely and confusedly so at the apex and thence slightly along the sides, 

 having even distant rows of very minute punctures, the rows not attaining 

 the base, the punctures coarser and confused near the sides and apex ; inter- 

 vals with uneven single rows of excessively minute feeble punctures. Meta- 

 sternum polished, with scarcely perceptible sparse feeble punctures. Length 

 2.3-2.6 mm. 



New Mexico (Las Yegas); Dakota (Bismarck). 



Although the elytra are unmistakably vittate in this species, it 

 cannot be considered a variety of vittatus ; its large size, dark head 

 and prothorax, much broader and more definite pale vitta5, coarser, 

 denser and more rugose punctuation at the sides and apices of the 

 elytra, and especially the more coarsely punctate head, preclude any 

 such association. 



The original unique type is immature, as there is no trace of the 

 dark sutural stripe. The measurement given in the original descrip- 

 tion is too great. 



O. pallipes Say. — .Journ. Ac. Phil., IV, p. 90. — Evenly elliptical, very 

 convex, highly polished, dark piceous-brown above ; under surface, legs and 

 antennae pale, flavo-testaceous. Head sparsely and very obsoletely punctate; 

 eyes rather small ; antennae rather robust, third joint almost as long as the 

 next two combined, club rather robust, scarcely as long as the first three joints 

 combined, ninth triangular, a little wider than long, tenth trapezoidal, twice 

 as wide as long and distinctly wider and shorter than the ninth, eleventh as 

 wide as the tenth, as long as the two preceding, but slightly wider than long, 

 rather abruptly constricted at apical third forming a very distinct narrowly 

 rounded apical process. Prothorax at base twice as wide as the head, a little 

 more than twice as wide as long, slightly lobed and feebly beaded at the middle 

 of the base, very obsoletely and finely punctate. Scutellum small, a little 

 wider than long. Elytra two and one-half times as long as the prothorax, not 

 narrowed behind, polished, not reticulata, with a fine transverse basal stria, 

 reflexed sliglitly along the scutellum where it becomes obsolete ; sutural bead 

 wanting near the base, very fine thence to the apex ; discal striae two in num- 

 ber, the first extending to basal fourth, the second a little beyond the middle, 

 the first iiniting with the suture at the extreme apex, the second vanishing 

 without attaining the suture at apical fourth or fifth ; disk with distant rather 

 regular rows of excessively fine feeble punctures, which become slightly more 

 visible but still in regular series at the sides, almost obsolete at base, the rows 

 not accompanied by impressed lines, the intervals excessively minutely feebly 

 and obsoletely punctate in single irregular lines. Abdomen rather distinctly 

 and subasperately punctate, plentifully but not densely pubescent. Legs 

 moderate ; posterior tibial spurs slender, rather long, the correspondiiag tarsi 

 rather slender, densely pubescent beneath, two-thirds as long as the tibiae, the 



