198 MEMOIRS ON THE COLEOPTERA 



minutely, very remotely punctulate, the punctures becoming dense 

 at the extreme ends, the lower margins feebly sinuate; hind tibiae 

 very smooth, polished and punctureless, barely shorter than the 

 femora; last ventral of the female impunctate. Length (9) 14.0 

 mm.; width 8.0 mm. Florida (Jacksonville). [Bothynus neglectus 

 Lee.] neglectus Lee. 



Body oblong, stouter, much less conspicuously sculptured on either the 

 elytra or pronotum 12 



12 Sides of the prothorax converging and almost evenly arcuate from 

 base to apex; body very stout. Color very pale brownish-rufous, 

 but little paler beneath, shining, the sterna conspicuously pubescent; 

 head rather more than two-fifths as wide as the prothorax, finely, 

 very densely rugulose, smooth basally, the carina fine and sharp, 

 feebly sinuate at the middle, joining a smooth plate at each side 

 before the eyes; clypeus minutely, densely rugulose throughout, 

 the sides at base rather prominent, the teeth unusually long, 

 very acute, approximate; prothorax convex, two-thirds wider 

 than long, the sides feebly converging at base from above, the 

 punctures anteriorly not coarse but deep and close-set, becoming 

 smaller and very remote toward the sides and base; pit rather 

 large, smooth, the tubercle unusually prominent; scutellum with 

 a confused line of feeble punctures parallel to the margins; elytra 

 slightly longer than wide, only very little wider than the pro- 

 thorax and slightly more than twice as long, broadly and circularly 

 rounded in apical third, the sides before the middle feebly sinuate; 

 punctures very moderate and widely spaced in unimpressed series, 

 confused broadly toward the sides but smaller only apically ; pygidium 

 finely rugulose in about basal third from side to side, elsewhere 

 polished and with distinct punctures, becoming gradually minute 

 and remote apically; hind tibiae rather strongly inflated apically, as 

 long as the femora, closely punctulate externally; last ventral of the 

 female finely punctulate, especially toward the middle. Length 

 (9 ) J5-5 mm.; width 9.5 mm. Kansas bicorniculatus n. sp. 



Sides of the prothorax with the usual subprominent arcuation beyond 

 the middle; hind tibiae shorter than the femora. Color slightly 

 deeper but clear rufous, paler beneath, the sternal pubescence 

 similarly long and conspicuous; integuments shining; head similar, 

 except that the transverse carina is feebler and shorter, not joining 

 an ante-ocular smooth plate; clypeus, at the sides basally, less 

 prominent, the subapical teeth not quite so high; prothorax nearly 

 similar in size, proportion and sculpture; scutellum without a line of 

 confused punctulation parallel to the sides, having merely a few fine 

 scattered punctures and adventitiously a subcentral fovea; elytra 

 rather smaller though of the same general form and proportion 

 with regard to the prothorax, but much more coarsely and strongly 

 sculptured, the punctures coarse and the series evidently impressed; 

 pygidium similarly though more feebly micro-rugulose basally but 

 with the scattered punctures finer; hind tibiae nearly smooth. Length 

 (cf) 15.0 mm.; width 8.8 mm. Colorado (Boulder Co.). One 

 specimen rubidus n. sp. 



