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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Scarab, Stag and Bess Beetles (Scarabaeoidea) » Bess Beetles (Passalidae) » Odontotaenius

Genus Odontotaenius

Classification · Synonyms and other taxonomic changes · Explanation of Names · Numbers · Size · Identification · Range · Habitat · Print References · Works Cited
Horned Passalus Mating - Odontotaenius disjunctus - male - female Passalid larvae - Odontotaenius disjunctus Horned Passalus - Odontotaenius disjunctus Odontotaenius disjunctus - Odontotaenius disjunctus Passalidae, roaming on the surface of a log - Odontotaenius disjunctus Beetle 01 - Odontotaenius disjunctus Horned Passalus - Odontotaenius disjunctus Horned Passalus With Unknown Guests - Odontotaenius disjunctus
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 Passalidae (Bess Beetles)
Genus Odontotaenius
Synonyms and other taxonomic changes
Genus revalidated by Reyes-Castillo (1970), see Schuster (1994).
Explanation of Names
Author of genus is Kuwert, 1896 (see Checklist of the Scarabaeoidea of the Nearctic Realm). Genus name is a combination of odonto-, tooth plus Latin taenia (from Greek tainia), a ribbon or band (Internet searches).
Numbers
Two North American species listed by Arnett, page 413 (1), and by Schuster (1994). There are 5-8 species in the genus as a whole, including species not found in the United States (Schuster, 1994).
Size
30-40 mm
Identification
Distinctive elongated, flattened shape, adapted for wood-tunneling lifestyle. Antennae are not elbowed and slightly lamellate (1). See also characteristics given for family.
Range
New World (North, Central, and South America). O. disjunctus is widespread species in the eastern United States. Odontotaenius floridanus Schuster is a Florida endemic, described in 1994.
Habitat
Rotting logs
Print References
Arnett, p. 413 (1)
Schuster, 1994. Odontotaenius floridanus New Species (Coleoptera: Passalidae): A Second U.S. Passalid Beetle. Florida Entomologist 77(4): 474-478, available here.
Works Cited
1.American Insects: A Handbook of the Insects of America North of Mexico
By Ross H. Arnett
Contributed by Cotinis on 21 March, 2004 - 6:04pm
Last updated 26 February, 2007 - 11:23am

Photos of larvae
The larvae are NOT Passalidae. They are Scarabaeidae; they have 3 discernable pairs of legs. Passalids only have 2. Ptichopus angulatus was recently found in southern Arizona. Two other species were cited at the beginning of the last century from Arizona but haven't been seen since then there.
… jschuste, 24 December, 2004 - 1:47am

 
Photos moved to Scarabaeidae
The following site shows some real larva - good catch.

http://www.fcps.k12.va.us/StratfordLandingES/Ecology/mpages/patent-leather_beetle.htm
… Phillip Harpootlian, 16 March, 2005 - 3:34pm

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