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Superfamily Heptagenioidea


mayfly - Arthroplea bipunctata - female Mayfly Larva - Arthroplea bipunctata Mayfly Larva - Arthroplea bipunctata Mayfly - Arthroplea bipunctata - female Mayfly - Arthroplea bipunctata - male big-eyed mayfly - Arthroplea bipunctata - male big-eyed mayfly - Arthroplea bipunctata - male Mayfly - Arthroplea bipunctata - female

Mayfly - Stenonema femoratum - male Heptageniidae, genus Rhithrogena - Rhithrogena Stream Mayfly - Stenacron interpunctatum - male Stenacron interpunctatum Leucrocuta? - Leucrocuta juno - female Mayfly - Maccaffertium pulchellum Mayfly - Leucrocuta hebe - female Raptoheptagenia cruentata

flat-headed brown mayfly - Isonychia Whazit - Isonychia mayfly 2 - Isonychia Mayfly - Isonychia Brush-legged Mayfly - Isonychia - male Brushlegged Mayfly - Isonychia tusculanensis - male Mayfly, Shenandoah National Park, 15Sep20 - Isonychia Mayfly - Isonychia

Homoeoneuria homoeoneuria - Homoeoneuria exoskeleton Homoeoneuria From Missouri River in Elk Point, SD - Homoeoneuria alleni Homoeoneuria From Missouri River in Elk Point, SD - Homoeoneuria alleni Homoeoneuria From Missouri River in Elk Point, SD - Homoeoneuria alleni Homoeoneuria From Missouri River in Elk Point, SD - Homoeoneuria alleni Homoeoneuria From Missouri River in Elk Point, SD - Homoeoneuria alleni

Pseudiron centralis Pseudiron centralis Mayfly - Pseudiron centralis - female Mayfly - Pseudiron centralis - female Pseudiron adult - Pseudiron centralis - female Mayfly nymph species unknown - Pseudiron centralis