foveicollis or spinulosus

Classification · Remarks · Works Cited

Classification

Kingdom Animalia (Animals)

Phylum Arthropoda (Arthropods)

Subphylum Hexapoda (Hexapods)

Class Insecta (Insects)

Order Coleoptera (Beetles)

Suborder Polyphaga

Superfamily Scarabaeoidea

Family Trogidae (Hide Beetles)

Genus Trox (Hide Beetles)

No Taxon foveicollis or spinulosus

Remarks

Females and undissected males of these two species are almost impossible to separate with certainty.

Some relative characters that can be useful:

Pronotal foveae are generally deeper in T. spinulosus and shallower in T. foveicollis.

Setae on the elytra tend to be longer and shaggier in T. spinulosus than in T. foveicollis (but setae can be worn down).

For more information, see: (1)(2)

Works Cited

1.	A revision of the genus Trox in North America (Coleoptera, Scarabaeidae) Vaurie P. 1955. Bull. AMNH 106: 1‒89.

2.	The Scarabaeoid Beetles of Nebraska Brett C. Ratcliffe & M.J. Paulsen. 2008. University of Nebraska State Museum, Vol 22, 570 pp.

Contributed by Brad Barnd on 14 May, 2011 - 9:00pm

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