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Family Pythidae - Dead Log Beetles

Beetle - Pytho americanus Pythos in love - Pytho niger - male - female another Dead Log Beetle species - Pytho seidlitzi Larvae, pupae, adults - Pytho niger Dead Log Beetle larva - Pytho americanus The big one is Trimitomerus riversii, but is the small one the same sp.? - Trimitomerus riversii coleopteran - Pytho niger Beetle - Priognathus monilicornis
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 Cucujiformia)
Superfamily Tenebrionoidea (Fungus, Bark, Darkling and Blister Beetles)
Family Pythidae (Dead Log Beetles)
Explanation of Names
Pythidae Solier 1834
Numbers
7 spp. in 4 genera in our area(1), 23 spp. in 7 genera total(2)
Size
6-22 mm(1)
Range
mostly northern temperate, plus one genus in Australia and one Neotropical(3); in our area, 2 genera widespread/transcontinental (Pytho in the north, reaches the treeline), Sphalma quadricollis west of the Rockies, and Trimitomerus riversii restricted to so.AZ(1)
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.Order Coleoptera Linnaeus, 1758. In: Zhang Z.-Q. (ed.) Animal biodiversity: An outline of higher-level classification...
Ślipiński S.A., Leschen R.A.B., Lawrence J.F. 2011. Zootaxa 3148: 203–208.
3.Coleoptera, Beetles; Morphology and Systematics vol. 2
Richard A.B. Leschen, Rolf G. Beutel and John F. Lawrence. 2010. De Gruyter.