Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar
Upcoming Events

Interested in a 2022 BugGuide gathering in New Mexico?

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Previous events


TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Bradycinetulus

Bradycinetulus ferrugineus - male Bradycinetulus fossatus (Haldeman) - Bradycinetulus fossatus genus?? - Bradycinetulus rex Bolbozilla - Bradycinetulus fossatus - male wow - Bradycinetulus fossatus wow - Bradycinetulus fossatus Bradycinetulus rex Cartwright - Bradycinetulus rex Bradycinetulus ferrugineus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga (Water, Rove, Scarab, Long-horned, Leaf and Snout Beetles)
Superfamily Scarabaeoidea (Scarab, Stag and Bess Beetles)
Family Geotrupidae (Earth-Boring Scarab Beetles)
Subfamily Bolboceratinae
Genus Bradycinetulus
Synonyms and other taxonomic changes
Amechanus Horn 1870, Bradycinetus Horn 1871
Explanation of Names
Bradycinetulus Cockerell 1906
Numbers
3 spp., all in our area(1)
Identification
Key to species(2)
1 Eye canthus nearly straight edged laterally, wide clypeal horn of male bisinuate apically, the external angles projecting forward, acute, and scarcely thicker than the adjacent edges, which converge posteriorly; median thoracic horns heavy, directed upward, their sharply rounded tips recurved posteriorly ....................... B. ferrugineus (Palisot de Beauvois)
Eye canthus notched or emarginated, not straight edged laterally ................. 2
2 Wide clypeal horn of male distinctly trinodose apically, the external angles not projecting beyond median point, lateral edges parallel; median thoracic horns heavy, projecting forward and outward, sharply rounded and very little recurved ............................................. B. fossatus (Haldeman)
Apex of clypeal horn of male widely truncate, straight across, the external angles slightly nodose, lateral edges parallel over apical two fifths, then diverging to base; median thoracic horns slender, directed forward and upward, basally flattened in front and behind ........... B. rex Cartwright
Range
B. ferrugineus (Palisot de Beauvois 1809) seVA-FL-MS
B. fossatus (Haldeman 1853) WI-NE to AR-TX
B. rex Cartwright 1953 soTX (3)
Works Cited
1.The Scarabaeoid Beetles of Nebraska
Brett C. Ratcliffe & M.J. Paulsen. 2008. University of Nebraska State Museum, Vol 22, 570 pp.
2.Scarabaeid beetles of the genus Bradycinetulus and closely related genera in the United States
O. L. Cartwright. 1953. Proceedings of the United States National Museum, Washington Vol. 103, No. 3318: 95-120.
3.An annotated checklist of the Scarabaeoidea of Texas.
Edward G. Riley & Charles S. Wolfe. 2003. Southwestern Entomologist, Supplement. 37 pp.