Laria Rossii Near Summit of Mt. Washington on ground. Arctic lith. Short and broad. Body black. Huckle clothes with smoky blond hairs mostly feathered at lateral longest. A distinct sub.dorsal line yellows at base as an also mark of the hairs on 1st 3 segments Lateral hairs also slightly tinged at base. yellow. Head legs and prolegs black - Cocoon much like Halidota maculata found on bare rock. Eats Vaccini sp. reluctantly. Identified from cocoon which have no doubt of species.