Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar

TaxonomyBrowse
Info
ImagesLinksBooksData

Genus Chaetarthria

Chaetarthria ochra Miller - Chaetarthria ochra Beetle - Chaetarthria Chaetarthria? - Chaetarthria Belden-J.2021.45 - Chaetarthria Waterford-J.2021.05 - Chaetarthria Waterford-J.2021.05 - Chaetarthria Chaetarthria atra? - Chaetarthria Small beetle - Chaetarthria
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Polyphaga
No Taxon (Series Staphyliniformia)
Superfamily Hydrophiloidea
Family Hydrophilidae (Water Scavenger Beetles)
Subfamily Chaetarthriinae
Genus Chaetarthria
Synonyms and other taxonomic changes
revised in Miller (1974)(1)
Explanation of Names
Chaetarthria Stephens 1833
Numbers
14 spp. in our area(2), 40 total(3)
Size
1.3-2.5 mm(2)
Identification
Broadly oval, very convex; 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)
Key to 3 spp. in (3)
Range
across NA (but way more diverse in the west)(2) and much of the world
Habitat
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.