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For Insects, Spiders & Their Kin
For the United States & Canada

Family Ephemeridae - Common Burrower Mayflies

Mayfly 1, Cooks landing Park - Hexagenia - female ID request of a mayfly - Ephemera simulans Mayfly. Hexagenia bilineata? - Hexagenia bilineata Unknown insect? - Hexagenia limbata Mayfly large - Hexagenia limbata Hexagenia bilineata? - Hexagenia bilineata Please help us to identify this guy. - Hexagenia bilineata Subimago Baetidae in Clay, Michigan - Hexagenia
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Furcatergalia
Infraorder Scapphodonta
Superfamily Ephemeroidea
Family Ephemeridae (Common Burrower Mayflies)
Numbers
12 spp. in 3 genera in our area(1), 80 spp. in 7 genera total(2)
Size
10-30 mm
Identification
Size large; M and Cu veins in front wings strongly divergent(3); larvae have long cylidrical bodies, tapered at both ends, sharp mandibles that curve outward like tusks, long fringed antenna, three cauda (anal filaments); legs adapted for digging(4)
Range
worldwide(2)
Habitat
Streams, lakes and nearby; larvae burrow in sand, silt; adults come to lights
Season
Summer