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 |
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Hind wings present with blunt costal projections | Hind wings present or absent, but if present, then costal projections are never blunt, instead being either pointed (sf 13.210), hooked (sf 13.211), or absent (sf 13.212) |
Hind wings with ten or more crossveins | Hind wings usually with less than six crossveins |
Forewings of most species patterned | Forewings of most species without patterns |
Abdomen with distinct dark speckles | Abdomen variable, but rarely speckled |
Often found in great numbers in lakes or very slow-flowing rivers | |
Remaining genera: Acentrella, Acerpenna, Americabaetis, Anafroptilum, Apobaetis, Baetis, Baetodes, Camelobaetidius, Cloeodes, Cloeon, Diphetor, Fallceon, Heterocloeon, Iswaeon, Labiobaetis, Moribaetis, Neocloeon, Paracloeodes, Plauditus, Procloeon, and Pseudocentroptiloides | |
5 Example Specimens | 5 Example Specimens |
Callibaetis | Go to Couplet 2 |