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Genus Siphlonurus

 
 
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Mayfly ID - Siphlonurus alternatus Mayfly ID - Siphlonurus alternatus Mayfly ID - Siphlonurus alternatus Mayfly ID - Siphlonurus alternatus Mayfly ID - Siphlonurus alternatus


Siphlonurus marshalli ? - Siphlonurus marshalli Siphlonurus marshalli male imago - Siphlonurus marshalli - male Mayfly sp - Siphlonurus marshalli

Mayfly larva - Siphlonurus mirus Mayfly larva - Siphlonurus mirus Spot-winged Mayfly - Siphlonurus mirus mayfly - Siphlonurus mirus - male Pennsylvania Mayfly for ID - Siphlonurus mirus Pennsylvania Mayfly for ID - Siphlonurus mirus Siphlonurus mirus Siphlonurus - Siphlonurus mirus

Mayfly - Siphlonurus occidentalis S. occidentalis - Siphlonurus occidentalis Mayfly - Siphlonurus occidentalis Mayfly - Siphlonurus occidentalis Mayfly sp. - Siphlonurus occidentalis Western Primitive Minnow Mayfly - Siphlonurus occidentalis Western Primitive Minnow Mayfly - Siphlonurus occidentalis Western Primitive Minnow Mayfly - Siphlonurus occidentalis

 
 
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