BEETLE GENUS ONTHOPHAGUS — HOWDEN, CARTWRIGHT 77 



punctures; gena with margin abruptly rounded before the eye, surface 

 alutaceous with a few scattered, setigerous punctures. 



Pronotum margined anteriorly, laterally, and m distinctly so bas- 

 ally; anterior angles abruptly rounded; quite strongly convex with 

 small, rounded, cone-shaped anterior, median protuberance overhang- 

 ing margin, its base usually slightly wider than clypeal emargination. 

 Disc shallowl}^, densely punctate; the punctures separated by less than 

 1 diameter, varying in size, annular in appearance, with the larger 

 punctures each bearing a distinct seta in the center; surface between 

 pmictm-es very finely alutaceous, becoming more noticeably so near 

 the median posterior margin. Elytra with shining, very shallow, 

 irregularly punctate striae; intervals UTegularly, biseriately tubercu- 

 late, the second, third, fom-th, and fifth often apparently having only 

 single rows; each tubercle with a fine, reddish seta at posterior edge; 

 surface of intervals between the tubercles very noticeably alutaceous. 



Pj'gidium only convex apically, shallowly, setigerously punctate; 

 surface alutaceous basally, becoming smooth and shining at the apex. 

 Ventral surface of thorax and abdomen between setigerous punc- 

 tm-es smooth medially, alutaceous laterally. Abdominal segments 

 setigerously pmictate along basal margin, punctm*es sometimes ob- 

 solete medially; last segment emargmate medially to receive the 

 pygidium. Forelegs elongate, the femora extending at least as far 

 as the lateral pronotal margins; tibia likewise lengthened, bent in 

 apical thu'd, outer margin quadridentate, serrate or denticulate 

 between and above the teeth, apex with a single or bidentate projec- 

 tion above the apical spur and with a small, yellow pencil of hairs 

 usually present. Femora of all legs moderately, coarsely, setigerously 

 punctate. 



Male minors. — Length 3.6 to 4.2 mm., width 2.0 to 2.3 mm. 

 Differing from male majors in the followuig respects: Head with 

 clypeus shallowly refiexed anteriorly, broadly emarginate, laterally 

 less distinctly angulate; disc of clypeus coarsely, closely punctate; 

 cl3^pcal carina still obsolete; frons and genae similar to those de- 

 scribed for male majors. Vertex with a low, poorly delimited carina 

 which is highest laterally, bent posteriorly, and depressed medially; 

 alutaceous and with scattered, coarse punctures behind carina. 



Pronotmn similar to male majors except that the protuberance is 

 only faintly indicated b}' a romided, anterior swelling. Elytra and 

 pygidium not significantly different. Ventral sm-faces not noticeably 

 differing from the male majors. Forelegs not greatly lengthened, the 

 femora not reaching the lateral pronotal margins, the foretibiae slen- 

 der, but not greatly lengthened, the conical projections and pencil of 

 hairs usually reduced or lacking. 



