116 PROCEEDINGS OF THE NATIONAL MUSEUM vol. lu 



Harold, 1869, p. 1030.— Horn, 1875, p. 138.— Austin, 1880, p. 25.— Henshaw, 

 1885, p. 87.— Blatchley, 1910, p. 918.— Schaeflfer, 1914, p. 294.— Leng, 1920, 

 p. 248.— Dawson, 1922, p. 178.— Boucomont and Gillet, 1927, p. 205.— 

 Boucomont, 1932, p. 309.— Lindquist, 1933, p. 120.— Ritcher, 1945, p. 14.— 

 Miller, 1954, p. 380. 



Copris hastator Fabricius, 1798, p. 28; 1801, p. 31. 



Onthophagus hastator (Fabricius) Lacordaire, 1856, p. 108. — Haldemaa and 

 LeConte, 1853, p. 54. — LeConte, 1863, p. 36. — Gemminger and Harold, 1869, 

 p. 1030.— Leng, 1920, p. 248. Boucomont and Gillet, 1927, p. 205. 



Copris latebrosus Fabricius, 1801, p. 34. — Palisot de Beauvois, 1809, p. 93. 



Onthophagus latebrosus (Fabricius) Sturnn, 1826, p. 178; 1843, p. 107. — Dejean, 

 1836, p. 157.— Kirby, 1837, p. 125.— Melsheimer, 1844, p. 135.— Halderaan 

 and LeConte, 1853, p. 54. — Lacordaire, 1856, p. 108. — LeConte, 1863, p. 36. — 

 Gemminger and Harold, 1869, p. 1030. — Crotch, 1874, p. 57. — Austin, 

 1880, p. 25.— Leng, 1920, p. 248.— Boucomont and Gillet, 1927, p. 206. 



Copris obtectus Palisot de Beauvois, 1805, p. 25. 



Onthophagus obtectus (Palisot de Beauvois) Haldeman and LeConte, 1853, p. 54. — 

 Lacordaire, 1856, p. 108. — LeConte, 1863, p. 36.— Gemminger and Harold, 

 1869, p. 1030.— Leng, 1920, p. 248.— Boucomont and Gillet, 1927, p. 206. 



Onthophagus scabricollis Kirby, 1837, p. 126. — Haldeman and LeConte, 1853, 

 p. 54.— Lacordaire, 1856, p. 108.— LeConte, 1863, p. 36.— Crotch, 1874, 

 p. 57. 



Onthophagus sayi Laporte, 1840, p. 87.— Lacordaire, 1856, p. 109. — Gemminger 

 and Harold, 1869, p. 1030.— Leng, 1920, p. 248.— Boucomont and Gillet, 

 1927, p. 206. 



Onthophagus furcicollis Dejean, 1836, p. 157. — Gemminger and Harold, 1869, 

 p. 1030. 



Onthophagus lama Dejean, 1836, p. 157. — Gemminger and Harold, 1869, p. 1030 



Male majors. — Length 7.5 to 9.5 mm., width 4.2 to 4.9 mm. 

 Black, with occasional aeneous reflections dorsally; appendages 

 brownish black; dorsal surfaces tuberculate, surface between the 

 tubercles opaque, finely alutaceous. Head with median anterior 

 part of clypeus reflexed sharply upward, forming a pronounced, 

 transversely flattened rounded perpendicular horn, surface laterally 

 rugosely punctate, centrally smooth with scattered, fine punctures; 

 clypeal carina iadistinct; frontal carina weak, fine, slightly more 

 pronounced laterally; surface of gena and vertex punctate before the 

 carina, impunctate behind the carina. Antenna brownish black with 

 club grayish black. 



Pronotum convex, with anterior process usually less than half the 

 width of head, extenduig forward as far as the posterior margin of the 

 clypeus, narrowest over the posterior carina of head, flaring suddenly, 

 and terminating laterally in two knobs; the anterior margin between 

 the two knobs turning doAvnward and dividing into two small pointed 

 teeth. In many males these central teeth not distinct, but broadly 

 merged with the lateral knobs. When viewed laterally, the dorsal 

 portion of the process forming a straight or slightly concave line with 

 the dorsal cm-vature of the thorax. Pronotum margined anteriorly 



