By George D. Hulst Entomologica Americana 2(10): 185-192; (cont.) Entomologica Americana 2(11): 210-212, 1887
Hulst, G.D., 1887. New species of Geometridae, No.3. Entomologica Americana 2(10): 185-192.
Hulst, G.D., 1887. New species of Geometridae, No.3. Entomologica Americana 2(11): 210-212.