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Species Stenonema femoratum

Mayfly Larvae - Stenonema femoratum Unknown mayfly - Stenonema femoratum Another mayfly. - Stenonema femoratum Little Lee Creek bug ? - Stenonema femoratum Ephemeroptera - Stenonema femoratum Mayfly - pale on screen - Stenonema femoratum Maccaffertium - Stenonema femoratum - female Stream mayfly - Stenonema femoratum
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Suborder Pisciforma
Superfamily Heptagenioidea
Family Heptageniidae (Flatheaded Mayflies)
Genus Stenonema
Species femoratum (Stenonema femoratum)
Explanation of Names
Stenonema femoratum (Say 1823)
Identification
The distinctive traits are tightly clustered crossveins near the bulla of the forewing in combination with three dark marks along the posterior edges of the terga. -- Lloyd Gonzales
Range
Canada, e. US(1) map(2)