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

foveicollis or spinulosus

Trox? - Trox Trox foveicollis - Trox Rough, brown beetle - Trox Rough-winged beetle - Trox carrion? beetle - Trox AZ19-0J40 - Trox AZ19 J40 - Trox Hide beetle - Trox
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 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.