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

Order Ephemeroptera - Mayflies


fat spiny Mayfly larva - Baetisca laurentina fat spiny Mayfly larva - Baetisca laurentina Mayfly Larva - Baetisca laurentina Mayfly Larva - Baetisca laurentina Mayfly Larva - Baetisca laurentina Ritchie County Mayfly - Baetisca mayfly sp ? - Baetisca aquatic invertebrate found in slow moving river - Baetisca

Mayfly - Hexagenia Mayfly Larva - Ephemerella aurivillii Mayfly - Ephemerella invaria Image 1 of 2, First mayfly of season - Leptophlebia Mayfly on shed wall - Hexagenia bilineata Serratella tibialis - Ephemerella tibialis Mayfly 2. - Leptophlebia Mayfly Sp. - Hexagenia

Ephemeroptera - Maccaffertium Mayfly - Callibaetis ferrugineus Baetidae, genus Heterocloeon - Heterocloeon A mayfly in need of an ID. - Callibaetis - male spiderweb-mutilated Ephemeroptera - Callibaetis Baetidae? - Callibaetis floridanus Stenacron again - Stenacron Ameletus? - Ameletus - male

Mayfly - female Mayfly - female Ephemeroptera