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Subfamily Hydroporinae

Predacious Diving Beetle? - Hydroporus Predacious Diving Beetle? Sanfilippodytes pseudovilis Young - Sanfilippodytes pseudovilis Hydroporus striola - male Hydroporinae - Leconectes striatellus Dytiscidae - Nectoboreus Neoporus psammodytes - male Heterosternuta wickmani(?) - Heterosternuta
Classification
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
Synonyms and other taxonomic changes
see(1)
Size
1-7.2 mm
Identification
Adults:
generally small
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, with a 'frontal horn', a projection of the clypeus:

2-segmented cerci/urogomphi
Range
worldwide
Works Cited
1.Phylogeny of the Hydroporinae and classification of the genus Peschetius Guignot, 1942 (Coleoptera: Dytiscidae)
Miller K.B., Wolfe G.W., Biström O. 2006. Insect Syst. Evol. 37: 257-279.