BEETLE GENUS ONTHOPHAGUS — HOWDEN, CARTWRIGHT 61 



slightly shorter, but well delimited and pronounced. Frons and ver- 

 tex alutaceous, with a few scattered medium punctures. Pronotum 

 similar to that of male except that the pronotal protuberances are 

 represented by a short arcuate line on each side of midline; elytra 

 similar to those of male. Pygidium a little more shining than in the 

 male. Anterior tibiae thickened and short, nearly straight, crenate 

 above and between the four teeth and lacking the apical pencil of 

 hairs. Last abdominal segment only very slightly narrowed medi- 

 ally, not greatly narrowed as in the male. 



Type.— USNAl 65680. 



Type locality. — Prescott, Yavapai Co., Ai'iz. 



Specimens examined. — 29. 



Distribution. — (See fig. 3, p. 24.) 



Arizona: Baboquivari Mts., Chiricahua Mts., Payson, Phoenix, Prescott, Sierra 

 Ancha Mts. (Gila Co.), Southwestern Research Station, 5 mi. west of PortaL 



Remarks. — This species is distinguished from the closely allied 

 Mexican species 0. lecontei Harold by its more shming clypeus and 

 pygidium and by the lack of a definite cl^^peal carina in the male 

 major. In addition, the range, as far as laiown, does not overlap, 

 0. suhopacus being known only from the higher elevations of south- 

 eastern Ai'izona. Howden collected a few specimens by scraping 

 away the ground cover in an area in which cattle and deer had been 

 feeding near Onion Saddle in the Chiricahua Mountains, but none of 

 the specimens taken were associated with animal droppings. L. J. 

 Bottimer trapped some specimens in malt bait cans at the South- 

 western Research Station near Portal. This species previously has 

 been incorrectl}^ recorded as lecontei, a species known only from 

 Mexico, 



Onthophagus suhopacus may be separated from other North Amer- 

 ican species by the finely alutaceous surface; the coarsely punctured 

 pronotum, each puncture overhung anteriorly hj a small tubercle 

 with a conspicuous reddish seta at its base; the shinmg elytral striae; 

 the biseriately tuberculate intervals, with the tubercles having red- 

 dish setae at their bases; the dorsal opaque black color; the brownish 

 black legs; and the lack of the clypeal carina in the males. 



Onthophagus monticohis, new species 



Plate 5, Figures 38 and 39 



Holotype. — Male major, length 6.2 mm., with 3.7 mm. Weakly 

 shinning, opaque black. Clypeal margin sharply reflexed anteriorly, 

 feebl}^ so lateralh^, anterior edge faintl}'- emarginate; clypeal disc with 

 a few coarse punctures scattered completely across its width. Frons 

 with scattered shallow punctm-es which are much more noticeable 



