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

Subfamily Hydroporinae

small hairy beetle - Hydroporus American River water beetle - Liodessus obscurellus Note*ridae?  No, - Celina hubbelli Noteridae? - Hygrotus turbidus Predacious Diving Beetle - Hydroporus striola Predaceous Diving Beetle - Hygrotus infuscatus - male Beetle 05.07.2009 013 - Celina fresh Hygrotus - Hygrotus nubilus
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Coleoptera (Beetles)
Suborder Adephaga (Ground and Water Beetles)
Family Dytiscidae (Predaceous Diving Beetles)
Subfamily Hydroporinae
Size
1-7.2 mm
Identification
Adults:
generally small in size
no visible scutellum
pro- and mesotarsi with 4 visible segments, although considered 'pseudotetramerous' as segment 4 is hidden beneath lobed segment 3
hind tarsal claws subequal in length
Larvae:
usually small in size, with a 'frontal horn', which is basically a frontal projection of the clypeus as seen here:
2-segmented cerci/urogomphi