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.
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.