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Genus Aquarius

Water Strider - Aquarius remigis 6026793 Limnoporus? - Aquarius Unidentified Water Strider - Aquarius remigis Unidentified Water Strider - Aquarius Aquarius remigis water strider - Aquarius remigis Aquarius? - Aquarius remigis Aquarius remigis? - Aquarius remigis
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hemiptera (True Bugs, Cicadas, Hoppers, Aphids and Allies)
Suborder Heteroptera (True Bugs)
Infraorder Gerromorpha (Semiaquatic Bugs)
Superfamily Gerroidea
Family Gerridae (Water Striders)
Subfamily Gerrinae
Genus Aquarius
Synonyms and other taxonomic changes
formerly treated as a subgenus of Gerris; reviewed in (1)
Explanation of Names
Aquarius Schellenberg, 1800
Numbers
5 spp. in US, 2 in Canada(2), 18 spp. total
Identification
hind tibia at least 4 times as long as metatarsomere 1; connexival spines prominent; pronotum dull; antennomere 1 more than 0.9 as long as antennomeres 2+3; adults winged or wingless

Gerris: connexival spines not prominent, metatibia <3.3 as long as metatarsomere 1
Limnoporus: antennomere 1 <0.8 length of antennomeres 2+3
Range
worldwide, but mostly holarctic; throughout NA(1)
Habitat
surface of ponds, lakes, slow-moving streams, rivers
Food
aquatic arthropods
Remarks
Taxonomy of the Aquarius remigis group, q.v., needs further study; that group will be likely moved to a separate genus within or sister to the Gerris clade. The only 'true' Aquarius in our area are A. conformis and A. nebularis, both members of A. elongatus group.