Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Superfamily Heptagenioidea


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

Mayfly - Maccaffertium modestum Ephemeroptera - Mayflies - Stenacron interpunctatum - Stenacron interpunctatum mayfly imago - Stenonema femoratum - female Leucrocuta? - Stenacron Ephemeroptera - Stenacron interpunctatum 9060911 mayfly - Cinygmula Spinadis simplex Mayfly sp. - Maccaffertium

Isonychiidae, genus Isonychia - Isonychia Isonychiidae, genus Isonychia - Isonychia Big Mayfly - Isonychia Mayfly - Isonychia bicolor - male Mayfly - Isonychia - female Mayfly - Isonychia Mayfly - Isonychia Mottled Winged Mayfly - Isonychia rufa

Homoeoneuria 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

Pseudiron centralis Mayfly - Pseudiron centralis - female Mayfly - Pseudiron centralis - female Spinadis? - Pseudiron centralis Spinadis? - Pseudiron centralis Mayfly July 3 - Pseudiron centralis - female Pseudiron adult - Pseudiron centralis - female Mayfly2 - Pseudiron centralis - female