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Alderfly Larvae
Sialis spp.
Aquatic Spiders
Dolomedes spp., Tetragnatha spp., and others
Backswimmers
About 32 North American species in the family Notonectidae
Caddisfly Larvae
Various species in the order Trichoptera
Crane Fly Larvae
There are over 500 species of crane flies in North America.
Damselfly Larvae
Species in the suborder Zygoptera
Dragonfly Larvae
Species in the suborder Anisoptera
Fishfly Larvae
Chauliodes, Neohermes, and Nigronia spp. (in eastern US)
Giant Water Bugs
Species in the genera Abedus, Belostoma, and Lethocerus
Venomous
Hellgrammite
Corydalus cornutus
Horse and Deer Fly Larvae
Tabanus, Chrysops, and related genera
Mayfly Larvae
There are hundreds of species in North America.
Mosquito Larvae
There are about 50 species of mosquitoes in our state.
Predaceous Diving Beetles (Water Tigers)
Species in the beetle family Dytiscidae
Stonefly Larvae
There are hundreds of species in North America
Water Boatmen
About 125 species in North America in the family Corixidae
Water Penny Beetle Larvae
Beetles in the family Psephenidae
Water Scavenger Beetles
Beetles in the family Hydrophilidae
Water Scorpions
Ranatra spp. and Nepa apiculata
Water Springtail
Podura aquatica
Water Striders
Aquarius remigis; also species in the genus Gerris
Whirligig Beetles
Species in the beetle family Gyrinidae
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Soft-bodied aquatic invertebrates without shells (5)
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