
Mayfly (Hexagenia limbata) Female
Photographed on June 2, 2013. Mayflies (Ephemeroptera) » Furcatergalia » Scapphodonta » Ephemeroidea » Common Burrower Mayflies (Ephemeridae) » Hexagenia »…

Mayfly (Hexagenia limbata) Female Head
Photographed on June 2, 2013. This is a close-up of the head of the individual in the previous photo. Mayflies (Ephemeroptera) » Furcatergalia » Scapphodonta »…

Mayfly (Hexagenia bilineata)
Photographed on July 5, 2010. Mayflies (Ephemeroptera) » Furcatergalia » Scapphodonta » Ephemeroidea » Common Burrower Mayflies (Ephemeridae) » Hexagenia »…

Mayfly (Stenacron interpunctatum) Male Lateral
Photographed on Aug. 4, 2010. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Stenacron » interpunctatum complex…

Mayfly (Stenacron interpunctatum )Male Dorsal
Photographed on Aug. 4, 2010. This is another view of the mayfly in the previous photo. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded…

Orange Cahill (Stenacron interpunctatum) Dorsal
Photographed on July 10, 2023. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Stenacron » interpunctatum complex…

Orange Cahill (Stenacron interpunctatum) Lateral
Photographed on July 10, 2023. This is another view of the mayfly in the previous photo. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded…

Mayfly (Maccaffertium species)
Photoograhed on June 1, 2010. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Maccaffertium. Genus page at…

Dark Cahill (Stenonema femoratum)
Photographed on July 29, 2011. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Stenonema » Stenonema femoratum.…

Dark Cahill (Stenonema femoratum)
Photographed on July 21, 2023. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded Mayflies (Heptageniidae) » Stenonema » Stenonema femoratum.…

Dark Cahill (Stenonema femoratum) Frontal
Photographed on July 21, 2023. This is another view of theindividual in the previous photo. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded…

Dark Cahill (Stenonema femoratum) Lateral
Photographed on July 21, 2023. This is another view of theindividual in the previous photo. Mayflies (Ephemeroptera) » Pisciforma » Heptagenioidea » Flatheaded…

Small Minnow Mayfly (Callibaetis ferrugineus) Female Lateral
Photographed on July 2, 2020. This is another view of the individual in the previous photo. Mayflies (Ephemeroptera) » Pisciforma » Small Minnow Mayflies…

Small Minnow Mayfly (Callibaetis ferrugineus) Female Frontal
Photographed on July 2, 2020. Mayflies (Ephemeroptera) » Pisciforma » Small Minnow Mayflies (Baetidae) » Callibaetis » Callibaetis ferrugineus. Species page at…