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subgenus Ptomister

Histerid - Margarinotus immunis - male Histerid - Margarinotus immunis - male Margarinotus (Ptomister) stygicus (J.E. LeConte 1845) - Margarinotus stygicus Clown beetle - Margarinotus Margarinotus immunis Histerid - Margarinotus immunis Histerid - Margarinotus immunis Histerid - Margarinotus immunis
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)
No Taxon (Series Staphyliniformia)
Superfamily Hydrophiloidea (Water Scavenger and Clown Beetles)
Family Histeridae (Clown Beetles)
Subfamily Histerinae
Tribe Histerini
Genus Margarinotus
No Taxon subgenus Ptomister
Numbers
by far the largest subgenus, with at least 15 spp. in our area(1) and 44 spp. total
Works Cited
1.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.