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For Insects, Spiders & Their Kin
For the United States & Canada
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Fall Fund Drive


Family Siphlonuridae - Primitive Minnow Mayflies

mayfly nymph - Siphlonurus Mayfly - Siphlonurus typicus Mayfly ID - Siphlonurus alternatus Mayfly larva - Siphlonurus Mayfly  - Siphlonurus - male Mayfly - Siphlonurus sp?  - Siphlonurus - male Mayfly - Siphlonurus Siphlonuridae? - 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)