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Family Polymitarcyidae - Pale Burrower Mayflies

Unknown Mayfly - Tortopsis ID Request mayfly - Ephoron Ephoron Leukon?  - Ephoron leukon mayfly 1 - Ephoron leukon Polymitarcyidae (Pale Burrower Mayfly) - Tortopsis primus - female mayfly sequence - Ephoron egg laying dying mayfly - Tortopsis primus - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Furcatergalia
Infraorder Scapphodonta
Superfamily Ephemeroidea
Family Polymitarcyidae (Pale Burrower Mayflies)
Numbers
6 spp. in 3 genera in our area(1), ~90 spp. in 7 genera total(2)
Identification
Similar to Ephemeridae, but nymphal mandibular tusks have spines on the top surface and are not curved upward; the ventral apex of the hind tibia rounded, not pointed
Range
all continents except Australia, by far most diverse in the Neotropics(1)(2)
Internet References