BEETLE GENUS ONTHOPHAGUS — HOWDEN, CARTWRIGHT 



Name used 



niger Melsheimer, 1846, p. 134 

 nigrescens Blatchley, 1916, p. 94 



(not d'Orbigny, 1902, p. 21) 

 nuchicornis (Linnaeus), 1758, p. 



547 

 obteclus (Palisot de Beaiivois), 



1805, p. 25 

 obsciirus Sturm, 1826, p. 178 

 oklahomensis Brown, 1927, p. 128 

 Orpheus (Panzer), 1794, p. 5 

 ovatus (Linnaeus), 1767, p. 551 

 ■pennsylvanicus Harold, 1871, p. 



115 

 polyphemi Hubbard, 1894, p. 311 

 proteyisus Melsheimer, 1846, p. 



134. 

 pseudorpheus, new subspecies 

 rhinoceros Melsheimer, 1846, p. 



134 

 sayi Laporte, 1840, p. 87 

 scobricollis Kirby, 1837, p. 126 

 schaefferi, new species 

 sparsisetosus, new subspecies 

 striatulus (Palisot de Beauvois), 



1809, p. 92 

 subaeneus (Palisot de Beauvois), 



1811, p. 105 

 subopacus Robinson, 1940, p. 142 

 substriatus Schaeffer, 1914, p. 



292 

 subtropicus, new species 

 texanus Schaeffer, 1914, p. 299 

 tuberculatus Gemminger and Har- 

 old, 1869, p. 1038 

 tuberculifrons Harold, 1871, p. 



115 

 velutinus Horn, 1875, p. 140 

 viridicatus Say, 1837, p. 173 

 viridicolHs Sturm 

 xiphias LeConte, 1863, p. 36 



(footnote) 



Present status 

 = striatulus (Palisot de Beauvois). 



— striatulus floridanus Blatchley. 



Valid. 



= hecate (Panzer). 



Nomen nudum. 



Valid. 



Valid. 



Not in U.S. See pennsylvanicus Harold. 



Valid. 



Valid. 



^concinnus Laporte. 



Subspecies of orpheus. 

 = nuchicornis (Linnaeus). 



— hecate (Panzer). 

 = hecate (Panzer). 

 Valid. 



Subspecies of polyphemi Hubbard. 

 Valid. 



Valid {cribricollis of authors). 



Valid. 



= striatulus (Palisot de Beauvois). 



Valid. 



Subspecies of landolti Harold. 



Attributed to Zimmerman in litt. Nomen 



nudum. 

 Vahd. 



Valid. 



= Canthon viridis (Palisot de Beauvois). 

 Attributed to Megerle. Nomen nudum. 

 = nuchicornis (Linnaeus). 



Species of Onthophagus of the United States and Canada may per- 

 haps be most easily separated from other Scarabaeidae by using the 

 following combination of characters: body more or less oval in shape 

 from dorsal view; scutellum not visible; elytra with striae not deeply 

 impressed and the intervals not distinctly convex; last abdominal 

 spiracle hidden by the elytra; front coxae large, elevated, front legs 

 with tarsi; middle coxae widely separated; middle and hind tibiae 

 widened at apex; males with last abdominal segment narrowed 



