BEETLE GENTJS ONTHOPHAGUS — HOWDEN, CARTWRIGHT 15 



margin slightly thickened and slightly emarginate or truncate me- 

 dially; clypeal disc closely, shallowly, rugosely punctate, the punctures 

 fine to moderate in size, separated by less than a diameter, many 

 confluent; clypeal carina fine, low, evenly elevated, relatively straight, 

 impunctate. Frons slightly convex medially; shallowly, rugosely 

 punctate but less closely than clypeal disc; delimited laterally from 

 the gena by a definite sutural line. Carina of the vertex very strong, 

 bowed forward slightly, almost straight, lowest medially, elevated 

 at each end into a strong horn near the eyes, the carina and horns 

 shallowly punctate anteriorly; genae not distinctly flared laterally, 

 extending no further than the anterior angles of the clypeus, punctures 

 as on clypeus. 



Pronotum completely margined, anterior angles rounded and flat- 

 tened, lateral margins bent downward sharply just in front of the 

 middle. Pronotum convex and tumid anteriorly, not overhanging 

 the head; the tumosity widely and bluntly shaped like an inverted 

 V, the arms of the V extending posteriorly as well-defined ridges, 

 sharply declivous in front of the ridge and wealdy concave from lat- 

 eral end of the ridge down to the margin opposite the eye; the median 

 line weakly impressed over posterior third. The tumosity with a 

 scattered group of 10 to 15 coarse intermixed punctures high on each 

 side of the anterior face; the surface otherwise from closely, moder- 

 ately pmictate anteriorly (the punctures separated by less than a 

 diameter) to gradually much finer over the posterior part of the disc 

 which is smooth and shinmg between the punctures. Elytral striae 

 shallowly punctate; intervals slightly convex, generally smooth and 

 shining, with scattered fine punctures; a few setae evident posteriorly, 

 largely in the pmictures of the sutural interval. 



Pygidium shining, moderately punctate, the punctures each bear- 

 ing a short yellow seta. Ventrally the thorax coarsely punctate 

 laterally, the punctures becoming smaller and finer medially; meta- 

 sternum smooth and shining, with median line finely, slightly im- 

 pressed; laterally the punctures bearing long thin dark reddish setae. 

 Abdomen medially impunctate, the last three segments each bearing 

 a row of small setigerous punctm'es laterally; last segment lighter in 

 color and narrowed medially to receive the pygidium. Forelegs 

 lengthened, the tibia considerably longer and thinner than in the 

 female, with four teeth, the basal one often obsolete; the margin 

 between the teeth smooth, differing in this respect from the other 

 species which have the margin serrated. Middle and hind femora 

 with a few large coarse pimctures apically; scattered fine punctures 

 over the entire ventral surface. 



Male and female minors. — These show only a vague anterior 

 pronotal carina and are quite similar in every way except in the shape 



