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

Upcoming Events

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

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

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

Photos of 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

Previous events


Virginia Beach, Virginia, USA
February 15, 2008
These tiny mites were attached to the underside of a Horned Passalus beetle that I was shooting. Just curious as to an ID for them.

Images of this individual: tag all
Mites Mites Mites Mites

Moved from Mites and Ticks.


Actually, there are now 18 sp
Actually, there are now 18 species of mites known as obligate associates of Odontotaenius disjunctus. I agree that the two mites posterior to coxae I are probably Diarthrophallus quercus. The large mites in front of coxae I are in the family Macrochelidae, genus Macrocheles. 3 species are described from O. disjunctus. The small mites just above the keel are one of the 3 species of Uropodidae known in this system, and the very small, round mites just below the keel are undescribed species of Astigmata, either Acaridae or Histiostomatidae. - Barry OConnor

Thank you
For helping with the identification of these mites. I only wish the images were better. I am now set up to provide improved images of these small mites and will do so if I find more at a later date.

Several possibilites
Pearse et al. (1936), working in North Carolina, found 12 species of mites associated with Odontotaenius disjunctus. They present a table of the seasonal variation of mite species found, and the most common external mites in February were 3 species of Uroobovella. The top group of mites might be one of those species.

The two mites near the bottom with long hairs appear to be Uroseius quercus based on the illustrations presented in the paper.

Disclaimer: I know next to nothing about mites, and am just basing this on information from the paper below.

Reference: Pearse, A.S., M.T. Patterson, J.S. Rankin, and G.W. Wharton. 1936. The ecology of Passalus cornutus Fabricius, a beetle which lives in rotten logs. Ecological Monographs, 6: 455-490. (For anyone with access to JSTOR, the full text is available there.)

Thanks Brad...
I added another image.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.