Genus Bradycinetulus

Bradycinetulus - Bradycinetulus ferrugineus - male

Bradycinetulus rex Cartwright - Bradycinetulus rex

unknown beetle - Bradycinetulus ferrugineus

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

Superfamily Scarabaeoidea

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.

Contributed by Phillip Harpootlian on 9 June, 2006 - 10:42pm
Additional contributions by Mike Quinn, v belov
Last updated 19 June, 2019 - 2:37pm

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