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

Family Siphlonuridae - Primitive Minnow Mayflies


Mayfly ID - Siphlonurus alternatus Mayfly - Siphlonurus - male Mayfly at Tuolumne Meadow - Siphlonurus Spot-winged Mayfly - Siphlonurus mirus Mayfly - Siphlonurus Siphlonuridae  Mayfly - Siphlonurus Ephemeroptera, found on snowpack  - Siphlonurus Unknown sp. - male mayfly - Siphlonurus typicus - male