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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Scarab, Stag and Bess Beetles (Scarabaeoidea) » Hide Beetles (Trogidae) » Hastate Hide Beetles (Omorgus) » Omorgus nodosus

Photo#5822

Copyright © 1993 Stephen Cresswell

Hide Beetle - Omorgus nodosus

Monohans Sandhills State Park, Ward County, Texas, USA
May 14, 1993

Though I have seen Trogidae elsewhere on animal carcasses or even hairballs, these were simply walking slowly along the ground.

LATER COMMENT: See discussion below; genus is Omorgus.

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Contributed by Stephen Cresswell on 14 August, 2004 - 5:55am
Last updated 5 December, 2010 - 5:57pm

Moved

Moved from Hastate Hide Beetles.

… v belov, 5 December, 2010 - 5:57pm

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Nice photo, moved to guide page

I've written a guide page for this family (Trogidae, often listed as a subfamily of the scarabs) and genus (Trox, sometimes split into Trox and Omorgus). I've tried to be consistent with the nearctica.com checklist, since that is comprehensive, but it is difficult to do with beetles--there are so many families, genera, and species, and the taxonomists are constantly lumping, splitting, then lumping again.

Nice photo.

Patrick Coin
Durham, North Carolina

… Cotinis, 14 August, 2004 - 11:13am

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Omorgus

This would be an Omorgus, which I thought was still(?) a legitimate genus. Am I wrong?

… Eric R. Eaton, 16 August, 2004 - 2:04pm

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Omorgus, Trox, etc.

Some references I found listed Omorgus as within Trox (nearctica.com, which lists as a separate family), others listed as a separate genus (Scarab Beetles of South Carolina, which lists the group as a subfamily of Scarabs. I was trying to be consistent with one source or the other.) I certainly am willing to change this based on your ideas--you are way ahead of me--I just made a decision based on a particular reference.

So I'll change it--seems reasonable. How about Stephen Creswell's other photo. Is that Trox or Omorgus?

How do you feel about Trogidae as a family separate from Scarabs? Is that the current thinking, or not?

Patrick Coin
Durham, North Carolina

… Cotinis, 16 August, 2004 - 6:48pm

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trox

this should be Omorgus nodosus

… Dan Sundberg, 19 May, 2010 - 9:19am

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