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

Family Siphlonuridae - Primitive Minnow Mayflies

small Mayfly - Siphlonurus Mayfly ID - Siphlonurus alternatus S. occidentalis - Siphlonurus occidentalis Siphlonurus occidentalis Mayfly? - Siphlonurus Siphlonurus - male Help with Id please - Siphlonurus Siphlonurus - Siphlonurus mirus Ephemeroptera - Siphlonurus
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Pisciforma
Family Siphlonuridae (Primitive Minnow Mayflies)
4 genera, with 26 spp. in our area (all but 6 spp. are in Siphlonurus)(1) and ~50 spp. total(2)
holarctic, incl. much of NA; tend to be northern/montane(1)(2)