Genus Chaetarthria

Classification · Synonyms and other taxonomic changes · Explanation of Names · Numbers · Size · Identification · Range · Habitat · Works Cited

Something tiny, near Hydrophilidae? - Chaetarthria

tiny Hydrophiloid? - Chaetarthria pallida

Chaetartria nigrella (LeConte) - Chaetarthria nigrella

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); considered semi-aquatic (adults not known to actively swim)(4)

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.

4.	The Water Beetles of Florida Epler J.H. 2010. Florida Department of Environmental Protection. Tallahassee. 414 pp.

Contributed by Tim Loh on 13 April, 2010 - 11:00pm
Additional contributions by Bbarnd, Mike Quinn, v belov
Last updated 5 January, 2025 - 6:11pm

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