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Genus Platydema

Beetle - Platydema nigratum Beetle - Platydema laevipes beetle under bark - Platydema excavatum Platydema??? - Platydema subcostatum Teneb - Platydema micans Dark, dull, purplish beetle - Platydema ruficorne Platydema nigratum (Motschulsky) - Platydema nigratum 20160418-DSC_2920 - Platydema ruficorne
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 Cucujiformia)
Superfamily Tenebrionoidea (Fungus, Bark, Darkling and Blister Beetles)
Family Tenebrionidae (Darkling Beetles)
Subfamily Diaperinae
Tribe Diaperini
Subtribe Diaperina
Genus Platydema
Explanation of Names
Platydema LaPorte & Brullé 1831
Greek, 'flat breast'
the largest genus of the tribe, with 20 spp. in our area and ~300 spp. worldwide(1)(2) (P. sexnotatum is a recent addition)
our spp. 3.2-8 mm(2)
Keys/guides to spp. in(2)(3)(4)(5)*
*9 spp. illustrated in color, incl. P. americanum and P. teleops not included in(3)
most diverse around the tropics, meagerly represented in the Holarctic Region(2)
under bark, on fungi on rotting wood; come to lights
Works Cited
1.American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea
Arnett, R.H., Jr., M. C. Thomas, P. E. Skelley and J. H. Frank. (eds.). 2002. CRC Press LLC, Boca Raton, FL.
2.Revision of Diaperini of American north of Mexico with notes on extralimital species (Coleoptera: Tenebrionidae)
Triplehorn, C.A. 1965. Proceedings of the United States National Museum No. 3515, 117: 349-458.
3.The Darkling Beetles of Florida and Eastern United States
4.Tenebrionidae of Wisconsin
5.Tenebrionoidea of South Carolina
Janet C. Ciegler. 2014. Clemson University.