Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Option 1 | Option 2 |
---|---|
Two rows of long hair-like setae present on inner margins of tibiae and femora of forelegs ![]() | Long hair-like setae absent from forelegs, or not arranged as above |
Remaining families: Isonychiidae and Oligoneuriidae | Remaining families: Acanthametropodidae, Ameletidae, Ametropodidae, Arthropleidae, Baetidae, Caenidae, Ephemerellidae, Heptageniidae, Leptohyphidae, Leptophlebiidae, Metretopodidae, Neoephemeridae, Pseudironidae, and Siphlonuridae |
5 Example Specimens | 5 Example Specimens |
Go to Couplet 20 | Go to Couplet 8 |