T Martin2010:
Mayfly, species Hexagenia bilineata (subimago), far shot
T Martin2010:
Mayfly, species Hexagenia bilineata, (subimago), closeup
T Martin2010:
Mayfly of genus Hexagenia (subimago) 3
T Martin2010:
Mayfly of genus Hexagenia (subimago) 2
T Martin2010:
Mayfly of genus Hexagenia
T Martin2010:
Mayfly on my fingertips
T Martin2010:
Small Minnow Mayfly - family Baetidae
T Martin2010:
Mayfly, species Stenonema femoratum
T Martin2010:
Mayfly, genus Isonychia 1
T Martin2010:
Mayfly, genus Isonychia 2
T Martin2010:
Stenonema femoratum
T Martin2010:
Hexagenia bilineata