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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Crustacea
Superclassis: Allotriocarida
Classis: Hexapoda
Classis: Insecta
Cladus: Dicondylia
Subclassis: Pterygota
Cladus: Metapterygota
Infraclassis: Neoptera
Cladus: Eumetabola
Cladus: Endopterygota
Superordo: Coleopterida
Ordo: Coleoptera
Subordo: Polyphaga
Infraordo: Elateriformia
Superfamilia: Byrrhoidea

Familia: Eulichadidae
Genera: Eulichas - Stenocolus

Eulichadidae Crowson, 1973

Lichadidae Forbes, 1926


Ivie, M.A. 2005: 18.11. Eulichadidae Crowson, 1973. Pp. 547-551 in: Beutel, R.G. & Leschen, R.A.B. (volume eds.) Coleoptera, Beetles. Volume 1: Morphology and systematics (Archostemata, Adephaga, Myxophaga, Polyphaga partim). In: Kristensen, N.P. & Beutel, R.G. (eds.) Handbook of zoology. A natural history of the phyla of the animal kingdom. Volume IV. Arthropoda: Insecta. Part 38. Berlin, New York: Walter de Gruyter.
Catalogue of Palearctic Coleoptera. Vol. 3 ed. I. Lobl, & A. Smetana, Apollo Books, Stenstrup, Denmark, 2006
ISBN 87-88757-59-5, p.455


Tree of Life Web Project. 2005. Eulichadidae. Forest stream beetles. Version 01 January 2005 (temporary) in The Tree of Life Web Project

Vernacular names
English: forest stream beetles

Eulichadidae is a family of beetles belonging to Elateriformia. There are two extant genera, Eulichas with several dozen species native to the Indomalayan realm of Asia, and Stenocolus, with a single species native to Western North America. The larvae are aquatic, with the larvae of Eulichas being found in sandy sediments of clean forest streams, while the larvae of Stenocolus are found under rocks and in leaf packs in low elevation streams and rivers. They are herbivious/saprophagous with larval specimens of Eulichas having been found with wood particles in their stomachs, while the larvae of Stenocolus are known to feed on decaying roots and detritus. The adults are terrestrial, with specimens of Eulichas typically found using light, while specimens of Stenocolus are typically found in riparian vegetation, and are not attracted to light.[1] Potential extinct genera have been described from Mesozoic rocks, but the placement of several of these taxa in the family is disputed.[2][3]

These two extant genera belong to the family Eulichadidae:

Eulichas Jacobson, 1913 Asia
Stenocolus LeConte, 1853 North America

Potential extinct genera

Mesodascilla Martynov, 1926 Karabastau Formation, Kazakhstan, Late Jurassic (alternatively considered a member of Lasiosynidae)

Cretasyne Yan, Wang & Zhang, 2013 Yixian Formation, China, Early Cretaceous (Aptian) (alternatively considered a member of Lasiosynidae)
Mesaplus Hong, 1983 Haifanggou Formation, China, Middle Jurassic


Ivie, Michael A.. "Eulichadidae Crowson, 1973: Coleoptera, Beetles". Handbook of Zoology Online, edited by Andreas Schmidt-Rhaesa. Berlin, Boston: De Gruyter, 2016.
Kirejtshuk A. G. (2013) Taxonomic names, in Current knowledge of Coleoptera (Insecta) from the Lower Cretaceous Lebanese amber and taxonomical notes for some Mesozoic groups, Terrestrial Arthropod Reviews 6, 103-134

Kundrata, Robin; Gimmel, Matthew L.; Packova, Gabriela; Bukejs, Andris; Blank, Stephan M. (2021-05-21). "A new enigmatic lineage of Dascillidae (Coleoptera: Elateriformia) from Eocene Baltic amber described using X-ray microtomography, with notes on Karumiinae morphology and classification". Fossil Record. 24 (1): 141–149. doi:10.5194/fr-24-141-2021. ISSN 2193-0074.

Further reading

LeConte, J.L. (1861). Classification of the Coleoptera of North America. Smithsonian Miscellaneous Collections. Vol. 3. doi:10.5962/bhl.title.38459. ISBN 0665100558.
Shepard, William D. (2002). Arnett, Ross H.; Thomas, Michael C.; Skelley, Paul E.; Frank, J. Howard (eds.). Family 51. Eulichadidae Crowson 1973. American Beetles, Volume II: Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press. pp. 142–143. ISBN 0-8493-0954-9.

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