No Image Available | | Acentrella insignificans |
|
Baetidae |
Mayfly |
|
|
Baetidae |
Mayfly |
|
No Image Available | | Ameletus celer |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus cooki |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus oregonensis |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus pritchardi |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus shepherdi |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus similior |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus sparsatus |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus subnotatus |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus suffusus |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus validus |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus vancouverensis |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus velox |
|
Ameletidae |
Mayfly |
|
No Image Available | | Ameletus vernalis |
|
Ameletidae |
Mayfly |
|
No Image Available | | Attenella marginata |
|
Ephemerellidae |
Mayfly |
|
|
Baetidae |
Mayfly |
|
No Image Available | | Baetis bundyae |
|
Baetidae |
Mayfly |
|
No Image Available | | Baetis moffatti |
|
Baetidae |
Mayfly |
|
No Image Available | | Baetis parallelus |
|
Baetidae |
Mayfly |
|
No Image Available | | Baetis persecutor |
|
Baetidae |
Mayfly |
|
|
Baetidae |
Mayfly |
|
No Image Available | | Caenis amica |
|
Caenidae |
Mayfly |
|
No Image Available | | Caenis youngi |
|
Caenidae |
Mayfly |
|
|
Baetidae |
Mayfly |
|
No Image Available | | Caudatella heterocaudata |
|
Ephemerellidae |
Mayfly |
|
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Caudatella jacobi |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Centroptilum album |
|
Baetidae |
Mayfly |
|
No Image Available | | Centroptilum bifurcatum |
|
Baetidae |
Mayfly |
|
No Image Available | | Centroptilum conturbatum |
|
Baetidae |
Mayfly |
|
No Image Available | | Cenygma integrum |
|
Heptageniidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
No Image Available | | Cinygmula kootenai |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Cinygmula mimus |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Cinygmula par |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Cinygmula ramaleyi |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Cinygmula uniformis |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Diphetor hageni |
|
Baetidae |
Hagen's Small Minnow Mayfly |
|
|
Ephemerellidae |
Mayfly |
|
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Drunella flavilinea |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Drunella grandis |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Drunella pelosa |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Drunella spinifera |
|
Ephemerellidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
No Image Available | | Epeorus dulciana |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Epeorus grandis |
|
Heptageniidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
No Image Available | | Epeorus permagnus |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Ephemera simulans |
|
Ephemeridae |
Mayfly |
|
|
Ephemerellidae |
Mayfly |
|
|
Ephemerellidae |
Mayfly |
|
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Eurylophella lodi |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Heptagenia elegantula |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Heptagenia flavescens |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Heptagenia solitaria |
|
Heptageniidae |
Mayfly |
|
|
Ephemeridae |
Mayfly |
|
No Image Available | | Ironodes arctus |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Ironodes flavipennis |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Ironodes nitidus |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Leptophlebia cupida |
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Leptophlebia gravastella |
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Leptophlebia nebulosa |
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Metretopus borealis |
|
Metretopodidae |
Mayfly |
|
No Image Available | | Nixe simplicioides |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Paraleptophlebia bicornuta |
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Paraleptophlebia brunneipennis |
|
Leptophlebiidae |
Mayfly |
|
|
Leptophlebiidae |
Mahogany Dun |
|
No Image Available | | Paraleptophlebia gregalis |
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Paraleptophlebia heteronea |
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Paraleptophlebia memorialis |
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Paraleptophlebia rufivenosa |
|
Leptophlebiidae |
Mayfly |
|
| | Paraleptophlebia temporalis |
|
Leptophlebiidae |
Mayfly |
|
|
Leptophlebiidae |
Mayfly |
|
No Image Available | | Parameletus columbiae |
|
Siphlonuridae |
Mayfly |
|
No Image Available | | Procloeon bellum |
|
Baetidae |
Mayfly |
|
No Image Available | | Procloeon implicatum |
|
Baetidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
No Image Available | | Rhithrogena jejuna |
|
Heptageniidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
|
Heptageniidae |
Mayfly |
|
No Image Available | | Rhithrogena virilis |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Serratella teresa |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Serratella tibialis |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Siphlonurus autumnalis |
|
Siphlonuridae |
Mayfly |
|
No Image Available | | Siphlonurus columbianus |
|
Siphlonuridae |
Mayfly |
|
No Image Available | | Siphlonurus occidentalis |
|
Siphlonuridae |
Mayfly |
|
No Image Available | | Stenonema terminatum |
|
Heptageniidae |
Mayfly |
|
No Image Available | | Timpanoga hecuba |
|
Ephemerellidae |
Mayfly |
|
No Image Available | | Tricorythrodes minutus |
|
Leptohyphidae |
Mayfly |
|