Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Fall Fund Drive


Genus Hydroporus

small water beetle - Hydroporus tristis Hydroporus tartaricus LeConte - Hydroporus tartaricus - male Hydroporus columbianus Fall - Hydroporus columbianus - male Hydroporus columbianus Fall - Hydroporus columbianus - male Hydroporus appalachius Sherman - Hydroporus appalachius - male Dytiscid - Hydroporus gossei Small coleoptera in water - Hydroporus Hydroporus? - Hydroporus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Hydroporinae
Tribe Hydroporini
Genus Hydroporus
Explanation of Names
Hydroporus Clairville 1806
~55 recognized species in North America(1)
2.6-7.1 mm(1)
epipleuron with no carina at the humeral angle (separates from Hygrotus)
metacoxal lobes not incised medially; hind (posterior) margins of metacoxal lobes generally straight or slightly angled medially (1)
colouration generally dark on the elytra and ventral surface; some with pale markings on the dorsal surface
Throughout North America & Eurasia
lentic; usually at the shallow margins of ponds and other bodies of standing water; among emergent vegetation