BEETLE GENUS ONTHOPHAGUS — HOWDEN, CARTWRIGHT 51 



lures; ventral surfaces green or coppery to black, vaguely alutaceous, 

 shining between punctures; legs greenish brown to black. Head with 

 clypeus sharply reflexed anteriorly, vaguely emarginate, surface 

 rugosely punctate; clypeal carina at most barely indicated; vertex 

 and prominent genae with scattered coarse punctures, some pmictures 

 bearing setae; frontal carma represented only laterally, indicated by 

 a single short tubercle above and behind each eye; antennae brownish 

 red, the club grayish browTi. 



Pronotum convex, with an anterior process extending over the head 

 bifurcating beyond the pronotal margm, the bifurcations ending in 

 blunt hatchet-shaped tips; the process narrowest just posterior to 

 the pomt of bifurcation, beyond that arcuately increasing in width 

 by approximately one-fifth; from lateral view the process curving 

 downward toward the vertex above the eyes. Pronotum margined 

 anteriorly and laterally, coarsely punctate laterally and on the pronotal 

 process, the punctures becoming shallower and very sparse medially 

 and posteriorly; laterally some of the pmictures bearmg very short 

 setae which become minute or are absent medially; punctures round 

 or oval and lacldng a tubercle at their anterior margin. Elytra with 

 well-defined striae; intervals distinctly, irregularly punctate, the 

 second and fourth intervals poorly so or impunctate, at least in anterior 

 half; setae in the punctures short and inconspicuous, usually absent 

 on the second and fourth intervals; surface strongly shining, not 

 alutaceous. 



Pygidium shining; coarsely, setigerously punctate. Ventral sur- 

 faces of thorax laterally vaguely alutaceous and coarsely, setigerously 

 punctate; metasternmn medially with only fine secondary punctures 

 and a faint longitudinal sulcus. Abdominal segments with nimierous 

 punctures laterally, becoming almost impunctate medially, the last 

 segment emarginate medially. Foreleg with femur and tibia longer 

 than in female, the distal end of the femiu- extending to the lateral 

 margin of the thorax; tibia with four large lateral teeth, the margin 

 serrate between and above the teeth and with a conical apical tooth 

 above the short intm'ned tibial spine. Femora of mesothoracic and 

 metathoracic legs havmg a few scattered coarse setigerous pmictures 

 and a few, very fine pimctm-es on their ventral surfaces. 



Male minors. — Length 3.9 to 6.1 mm., width 2.6 to 3.4 mm. 

 Usually smaller than male majors or females, differing from the former 

 in the follomng respects: Clypeal margin scarcely more reflexed 

 anteriorly than laterally; clypeal carina usually pronounced; frontal 

 carina often complete, highest laterally, indicative of the conical 

 tubercles above the eyes in male majors. Pronotal protuberance 

 greatly reduced, sometimes only indicated as it is in females by a 

 round hmiip extending no farther than the anterior pronotal margin. 



