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Oxyomus Dejean 1833
Oxyomus Dejean 1833: 163.

Oxyomus sylvestris (Scopoli)
Photo by P. Skelley.
Family........... Subfamily......


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Type species. Scarabaeus sylvestris Scopoli 1763: 5, by subsequent designation.
  = Amidorinus W. Koshantshikov 1912: 519. Type species: Amodorinus rosti Koshantschikov 1912, by monotypy.
Diagnosis. Body length 2.5-4.0 mm, elongate, dark brown to black. Pronotum coarsely punctate, with shallow, median longitudinal groove at base. Elytral humerus dentate; intervals carinate; strial punctures larger than interval width.
Distribution. Europe to southeast Asia, Mexico, North America (introduced).

Composition. Worldwide, Oxyomus contains approximately 27 species, 2 of which occur in the New World.

Oxyomus sylvestris
(Scopoli 1763: 5) [Scarabaeus], Europe; northern North America (introduced).
                  = Scarabaeus fenestralis Schrank 1781: 17.
                  = Scarabaeus foveolatus Moll 1785: 170.
                  = Aphodius foveolatus Mulsant 1842: 309.
                  = Oxyomus opacifrons Horn 1871: 284.
                  = Ips platycephalus Marsham 1802: 56.
                  = Scarabaeus porcatus Fabricius 1775: 20.
Oxyomus setosopunctatus Schmidt 1911: 15, Mexico.

Life History. Unknown. Oxyomus sylvestris is occasionally collected in bovine dung or wet rotting plant matter.
Larvae. The larva of O. sylvestris is described in Ritcher (1966).


Dellacasa, M. and Z. T. Stebnicka. 2001b. A new genus for Oxyomus morosus Harold, 1869 (Eupariini) and redefinition of Oxyomus setosopunctatus A. Schmidt, 1911 (Aphodiini) (Coleoptera Scarabaeidae: Aphodiinae). Acta Zoologica Mexicana 83: 29-34.
Gordon, R. D., and P. E. Skelley. 2007. A monograph of the Aphodiini inhabiting the United States and Canada (Coleoptera: Scarabaeidae: Aphodiinae). Memoirs of the American Entomological Institute 79: 580 pp.
Ritcher, P.O. 1966. White grubs and their allies: A study of North American scarabaeoid larvae. Oregon State University Press, Corvallis, Oregon. Studies in Entomology 4: 219 pp.

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Author: Paul Skelley

Generated on: 01/MAY/08.....Last modified: 01/MAY/08
University of Nebraska State Museum - Division of Entomology