Length, 1 4/10 inches; body cylindrical inclined to onisciform.

Head, flat, bilobed and horned or notched, dark brownish red with several long hairs just above the mandibles and collar.

Body, plump, smooth and firm to the touch; colour, greenish grey with small spots and blotches: on the seventh segment, two lateral black spots, on the eighth segment, a small fleshy dark coloured horn curved backwards; the anal segment terminated by two elongated prolegs; on each segment are two dorsal spots or pimples with one long hair in each; a thick fringe of greyish hair on the base of the sides; the spiracles blackish, not distinctly marked.