BEETLE GENUS ONTHOPHAGUS — HOWDEN, CARTWRIGHT 99 



Pronotum moderately convex and margined anteriorly and later- 

 ally; dorsal surface with distinct tubercles 2 to 3 diameters apart, 

 overhanging minute posterior punctures which boar short fine setae; 

 surface between tubercles alutaceous. Pronotal protuberance forming 

 a wide, shelflike projection over head, the sides of the projection 

 parallel, anterior margin terminating over eyes; broadly emarginate 

 and somewhat depressed medially. When viewed laterally, projection 

 turned slightly upward at apices, with a deep smooth circular fovea 

 under margin on each side, and resembling that of medorensis, except 

 that the adjacent fossa is circular instead of elongate; anterior prono- 

 tal angles very broadly rounded, much more so than in 0. hroumi or 

 0. velutinus and not excavated as in 0. medorensis; posterior angles 

 more abruptly rounded than hrowni. 



Elytra with shallow striae, both striae and intervals dull and aluta- 

 ceous; intervals with two or three irregular rows of small tubercles, 

 small pimctures at the base of each tubercle bearing an erect reddish 

 seta. Pygidium feebly convex, completely alutaceous, shallowly, 

 indistinctly punctate, the punctures bearing erect reddish setae. 



Ventral surfaces brownish black to black with a faint greenish cast 

 on the legs; antennal club brown to brownish gray. Metasternum 

 with scattered coarse punctures most numerous laterally, each punc- 

 ture bearing a very long erect seta; midline at center of metasternum 

 largely lacking coarse setigerous punctures but with scattered fine 

 secondary punctures; surface between punctures finely alutaceous 

 laterally. Abdominal segments alutaceous and, except for ikst seg- 

 ment, with a row of setigerous punctures across their bases. Last ab- 

 dominal segment emarginate as is typical for the genus in North 

 America. Forelegs not much more elongate than in female, tibia 

 ^vith conical projection over apical spur and with spur sharply bent 

 inwardly near apex. Middle and hind femora with scattered, vridely 

 separated, coarse, setigerous punctures and very fine secondary 

 punctures. 



Male minor. — Unkno^vn. 



Allotype. — Female, length 6.75, width 4.0 mm. Differing from 

 male holotype in the following respects: Head longer with clypeus 

 not so arcuate laterally or distinctly angulate between clj^peus and 

 genae; clj^jeal margin only narrowly reflexed and weakly emar- 

 ginate anteriorly ; surface of clypeus coarsely, transversely, rugose-punc- 

 tate throughout; cl3^peal carina similar but not as fine; frons and genae 

 more coarsely punctate; frontal carina evenly elevated from side to 

 side, curving slightly posteriori}^ above the eyes. Pronotum convex; 

 pronotal prominence low, rounded, and inconspicuous, slightly arcuate 

 forward over middle third of total width. Forelegs noticeably shorter, 

 the tibia lacking the tooth above the spur. Terminal abdominal 

 segment not narrowed apically to receive the pygidium. 



