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Family Acanthametropodidae - Sand-dwelling Mayflies

Analetris eximia
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Pisciforma
Family Acanthametropodidae (Sand-dwelling Mayflies)
Numbers
3 spp. in 2 genera total(1)
Size
Relatively large: adults and nymphs to ~20 mm
Identification
Nymph: elongate and streamlined; claws long and slender, claws of hind legs about as long as tarsi
Range
Holarctic; Acathametropus in North America and ne Asia, Analetris in western North America
Habitat
Large, deep rivers with sand bottoms; nymphs usually in deep runs or marginal pools
Food
Nymphs are predators; adults are short-lived and non-feeding
Life Cycle
North American populations univoltine
Print References
McCafferty W.P. (1991) Comparison of Old and New World Acanthametropus (Ephemeroptera: Acanthametropodidae) and other psammophilous mayflies. Entomological News 102: 205-214.