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Species Stenonema femoratum

Mayfly - Stenonema femoratum - female Mayfly - Stenonema femoratum - male Flatheaded Mayfly - Stenonema femoratum Mayfly - Stenonema femoratum Mayfly - Stenonema femoratum Ephemeroptera - Stenonema femoratum Ephemeroptera - Stenonema femoratum Mayfly - Stenonema femoratum - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Class Insecta (Insects)
Order Ephemeroptera (Mayflies)
Family Heptageniidae (Stream Mayflies)
Genus Stenonema
Species femoratum (Stenonema femoratum)
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