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Subfamily Bolboceratinae

could it be? - Family Ochodaeidae - Sand-loving Scarab Beetles [30] - Odonteus - female Odonteus thoracicornis - male Unknown Dung Beetle - Odonteus obesus - male Dead Brown Earth-boring Dung Beetle - Bolbocerastes small, horned  geotrupid - Odonteus - male - female small, horned  geotrupid - Odonteus - male - female Boring dung beetle - Bolbocerosoma tumefactum Boring dung beetle - Bolbocerosoma tumefactum
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles)
Superfamily Scarabaeoidea (Scarab, Stag and Bess Beetles)
Family Geotrupidae (Earth-Boring Dung Beetles)
Subfamily Bolboceratinae
Synonyms and other taxonomic changes
Some sources designate as a separate family, Bolboceratidae.
Explanation of Names
From Bolboceras Kirby, 1819, which is now a junior synonym of Odonteus. Bolboceras is from Greek bolbo a bulb plus cera horn (1).
Numbers
Seven genera:
Odonteus (=Bolboceras in current North American literature, incl. American Beetles (2))
Identification
Characteristics:
antennae with 11 segments, last 3 forming a club
eyes partially or completely divided by a canthus
Internet References
Borror, entries for bolbo, cera (1)
Browne, D. Jonathan and Scholtz, Clarke H. 1995. Bolboceratidae. Version 01 January 1995 (under construction). http://tolweb.org/Bolboceratidae/9542/1995.01.01 (Bolboceratidae) in The Tree of Life Web Project, http://tolweb.org/
Generic Guide to New World Scarab Beetles--Geotrupidae
Works Cited
1.Dictionary of Word Roots and Combining Forms
By Donald J. Borror
2.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
By Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.)