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Family Derodontidae - Tooth-necked Fungus Beetles

Derodontid - Derodontus esotericus Derodontus esotericus congregation - Derodontus esotericus Beetle on snow - Laricobius rubidus Laricobius erichsoni Tiny black beetle in snow - Laricobius nigrinus Derodontoidea – Tooth-necked Fungus Beetles - Derodontidae  - Derodontus esotericus Trogossitid swept from vegetation in old-growth redwoods - Peltastica tuberculata Derodontidae?
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)
Superfamily Derodontoidea (Tooth-necked Fungus Beetles)
Family Derodontidae (Tooth-necked Fungus Beetles)
Pronunciation
reviewed in(1)
Synonyms and other taxonomic changes
Laricobiidae, Peltasticidae
Explanation of Names
Derodontidae LeConte 1861
Numbers
9 spp. in 3 genera in our area(2), 37 spp. in 4 genera worldwide(3)
Identification
Head with paired ocelli. Anterior edge of scutellum abruptly and sharply elevated above mesoscutum; metepisternum reaching mesocoxal cavity and contacting first ventrite to separate metacoxa from elytral edge.
Range
Holarctic (3 genera) and south temperate (one genus: Australia, NZ, Chile)(2)
Works Cited
1.Review of the Derodontidae (Coleoptera: Polyphaga) with new species from North America and Chile
John F. Lawrence and T. F. Hlavac. 1979. The Coleopterists Bulletin, Vol. 33, No. 4.
2.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.
3.A world catalogue of the family Derodontidae (Coleoptera)
J. Háva. 2006. Polskie Pismo Entomologiczne, 75: 29-38.