| GEOTRUPIDAE | ||||||||
| Bolboceratinae | ||||||||
| Bolboceras filicornis (Say) ? (5, as Odontaeus) | ||||||||
| B. thoracicornis (Wallis) (10,13) | ||||||||
| Bolbocerastes serratus (LeConte) (3,7,10) | ||||||||
| Bolbocerosoma biplagiatum Dawson & McCollock (3,5,10) | ||||||||
| B. bruneri Dawson & McCollock (5,8,10) | ||||||||
| B. confusum Brown (3,6,10) | ||||||||
| B. lepidissimum Brown (1,6,10) | ||||||||
| B. p. pusillum Dawson & McCollock (1,10,11) | ||||||||
| Bradycinetulus fossatus (Haldeman) (3,5,7,10) | ||||||||
| Eucanthus impressus Howden (1,9,10) | ||||||||
| E. lazarus (Fab.) (1,5,9,10,12) | ||||||||
| Geotrupinae | ||||||||
| Geotrupes blackburnii excrementi Say (2,3,4,5,10) | ||||||||
| G. opacus (Haldeman) (2,4,5,10,11) | ||||||||
| G. s. splendidus (Fab.) (2,3,4,5,10) | ||||||||
| 1. In OSU Collection - Det. D. C. Arnold | ||||||||
| 2. In OSU Collection - Det. W. J. Brown | ||||||||
| 3. In OSU Collection - Det. O. L. Cartwright | ||||||||
| 4. Reported by Blume, 1985 | ||||||||
| 5. Reported by Brown, 1927a | ||||||||
| 6. Reported by Brown, 1928c | ||||||||
| 7. Reported by Cartwright, 1953 | ||||||||
| 8. Reported by Howden, 1955 | ||||||||
| 9. Reported by Howden, 1964 | ||||||||
| 10. Reported by Howden, 1984 | ||||||||
| 11. Reported by Kondratieff et al., 2005 | ||||||||
| 12. Reported by Ortenburger & Hatch, 1926 | ||||||||
| 13. Reported by Wallis, 1928 | ||||||||
| 6 genera - 14 species | ||||||||