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Genus Chaetarthria

Something tiny, near Hydrophilidae? - Chaetarthria Chaetarthria ochra Miller - Chaetarthria ochra Chaetarthria Beetle - Chaetarthria Beetle - Chaetarthria Beetle - Chaetarthria beetle - Chaetarthria Chaetarthria? - Chaetarthria nigrella
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 Staphyliniformia)
Superfamily Hydrophiloidea (Water Scavenger and Clown Beetles)
Family Hydrophilidae (Water Scavenger Beetles)
Subfamily Hydrophilinae
Genus Chaetarthria
Synonyms and other taxonomic changes
revised in(1)
Explanation of Names
Chaetarthria Stephens 1833
4 spp. in our area(2), 40 total(3)
1.3-2.5 mm(2)
Broadly oval, very convex body shape; 1st abdominal sternum posteriorly lined with a fringe of long golden hairs, covering the 2nd abdominal segment; there is a translucent hyaline mass in a common excavation in the 1st 2 abdominal sterna (this is covered by the hairs)(3)
Across NA(2) and much of the world
At margins of standing or running water; usually buried in wet sand/mud(3)
Works Cited
1.Revision of The New World Chaetarthria (Coleoptera: Hydrophilidae)
David C.Miller. 1974. Entomologica Americana 49, 1:1-123.
2.American Beetles, Volume I: Archostemata, Myxophaga, Adephaga, Polyphaga: Staphyliniformia
Arnett, R.H., Jr., and M. C. Thomas. (eds.). 2000. CRC Press LLC, Boca Raton, FL.
3.Review of the Family Hydrophilidae of Canada and Alaska
Ales Smetana. 1988. Entomological Society of Canada.