Subfamily Hydroporinae

Classification · Size · Identification

Predacious Diving Beetle - Neoporus undulatus

Predaceous Diving Beetle - Hygrotus impressopunctatus

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

Contributed by Tim Loh on 8 February, 2009 - 1:12am
Last updated 24 February, 2009 - 11:42pm

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