Synonyms and other taxonomic changes
Odontaeus Dejean 1821 (now typically treated as subsequent misspelling)
Bolboceras of authors (after Cartwright 1953:
101...but see the 2006 ICZN
Opinion 2138 regarding the 2002
Case 3097.) [By affixing the type as
S. quadridens (as opposed to
S. mobilicornis (=
armiger)),
Bolboceras Kirby 1819 becomes a senior syn. of
Indobolbus Nikolajev 1979]
Numbers
10 spp. in our area, 13 total
(1)Identification
Eyes completely divided by canthus. Sexual dimorphism usually obvious, males often with prominent horn. Species identification often requires examination of genitalia.
Range
holarctic & S Asia; in our area, most spp. east of NE-TX, one strictly western:
(1)(3)
Odonteus alabamensis Wallis 1929 - SC-FL-MS
Odonteus cornigerus (Melsheimer 1844) - ne US to NC
Odonteus darlingtoni Wallis 1928 - se US
Odonteus falli Wallis 1928 - e NA
Odonteus filicornis (Say 1823) - SK-MB-WI to TX-MS
Odonteus floridensis Wallis 1928 - FL
Odonteus liebecki Wallis 1928 - e NA
Odonteus obesus LeConte 1859 - BC-AB & w US
Odonteus simi Wallis 1928 - e US
Odonteus thoracicornis Wallis 1928 - e US (PA-FL to NE-TX)
Season
Late spring and late summer to fall. In SC:
B. liebecki May and Jul-Oct,
B. thoracicornis Apr-May, Sep-Nov
(4)Life Cycle
Adults dig burrows and provision with organic matter (e.g., dung, humus). The same burrow may contain eggs, larvae, pupae, and adults at the same time. Presumably overwinter as adults at times, given the two seasons of occurrence.