Euloncha oblinita Grote.

Larva, one specimen-Body black; a broad coral-red band on the back of each ring and a row of bright yellow blotches on the sides. The black ground color is variegated with White on the sides. On each ring are ten small warts, each of which bears about eight short, stiff, spreading brown spines, which sting severely when touched. Head roundish, coral-red, with two brown spots on the crown. Length when full grown, 1.4 inches. Feed on the smooth alder (Alnus serrulata). Changed to a pupa within a tough cocoon attached firm1y to a twig. Imago June 6.

I am indebted to Prof. A. R. Grote for the identification of this species, and to Dr. A. S. Packard, jr., for the following Geometrids.