Frass from caterpillars of Scotorythra paludicola, koa moth. Humuula Trail, 890 m. In this area the frass formed a layer over 1/4" deep, partly due to it being washed down the trail.
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Frass from caterpillars of Scotorythra paludicola, koa moth. Humuula Trail, 890 m. In this area the frass formed a layer over 1/4" deep, partly due to it being washed down the trail.