BioStor
Onthophagus pennsylvanicus Harold, 1871
 | Observations upon a collection of insects made in the vicinity of New Orleans, Louisiana, during the years 1882 and 1883 Shufeldt R W. (1884) Proceedings of the United States National Museum, Washington 7: 331-338 |
 | Field notes from Texas and Louisiana H Wickham (1893) The Canadian Entomologist, Ontario 25: 139-143 |
 | Additional list of insects taken in alpine region of Mt. Washington. Annie Slosson (1897) Entomological News, Philadelphia 8(10): 237-240 |
 | A short review of the North American species of Onthophagus C Schaeffer (1914) Journal of the New York entomological Society. New York 22: 290-300 |
 | Additions to the Coleoptera of Meriden, Connecticut H Johnson (1916) Entomological News, Philadelphia 27(3): 112-124 |
 | Coleoptera collected at Windsor, Broome Co., N.Y., 26 May to 5 June, 1918, with notes and descriptions H Notman (1920) Journal of the New York Entomological Society 28: 178-194 |
 | Scarab beetles of the genus Onthophagus North of Mexico H Howden (1963) Proceedings of the United States National Museum 114(3467): 1-135 |
 | Faunistic Comparison Of Adult Coleoptera Recovered From Cattle And Sheep Manure In East central South Dakota H Kessler, Balsbaugh Eg and B Mcdaniei (1974) Entomological News 85: 67-71 |