Collector-gatherers
Guides
Tricorythodes
little stout crawler mayflies
Tricorythodes is a genus of small, robust mayflies in the family Leptohyphidae, commonly known as little stout crawler mayflies. The genus comprises approximately 16 described species distributed across the Americas. Nymphs are primarily found in stream habitats where they function as collector-gatherers, processing fine particulate organic matter. Species within this genus exhibit multivoltine life histories with development rates strongly influenced by temperature.