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Genus Helichus

Dryopid - Helichus striatus Aquatic beetles - Helichus suturalis Helichus suturalis Helichus striatus Dryopidae / Helichus species - Helichus striatus Dryopidae / Helichus species - Helichus striatus Vail Dryopid - Helichus Vail Dryopid - Helichus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Elateriformia)
Superfamily Byrrhoidea
Family Dryopidae (Long-toed Water Beetles)
Genus Helichus
Explanation of Names
Helichus Erichson 1847
Numbers
7 spp. in our area(1), ~60 total(2)
Identification
key to spp. in (3)
Range
much of the world
Print References
Nelson H.G. (1981) Notes on Nearctic Helichus (Coleoptera: Dryopidae). Pan-Pac. Entomol. 57: 226‒227.
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.BioLib.cz
3.Aquatic dryopoid beetles (Coleoptera) of the United States
Brown H.P. 1972. USEPA Water Poll. Control Res. Ser., Vol. 6. ix+82 pp.