14 
plum, poplar, prune, Rocky Mountain cherry, rose, silver maple, willow, and many 
other plants. ) 
For bibliography and food plants see Fernald, Cat. Coccide of World, Bul. 88, 
Mass. Agr. Coll., pp. 271-275, 1903; Howard and Marlatt, Bul. 3, n.s., Div. Ent., 
U. 8. Dept. Agric., 1896. 80 pp. 
Exursir: Infested twi ig. . 
PUTNAWM’S SCALE; CRANBERRY SCALE. 
Aspidiotus ancylus Putn. 
(Food plants: Apple, apricot, box elder, cottonwood, cranberry, elm, hemlock, 
maple, oak, peach, pear, plum, etc. ) 
For bibliography and food plants see Fernald, Cat. Coccidee of World, Bul. 88, 
Mass. Agr. Coll., pp. 252-253, 1903. 
Exutsir: Infested twig. 
THE CHERRY SCALE; FORBES’ SCALE. 
Aspidiotus forbesi Johns. 
(Food plants: Apple, cherry, currant, honey locust, peach, pear, plum, walnut, etc. ) 
For bibliography and food’ plants see Fernald, Cat. Coccide of World, Bul. 88, 
Mass. Agr. Coll., pp. 259-260, 1903. 
Exursit: Infested twig. 
THE GREEDY SCALE. . 
Aspidiotus rapax Comst. 
(Food plants: Cottonwood, maple, olive, pear, quince, apple, ete. ) 
For bibliography and food plants see Fernald, Cat. Coccide of World, Bul. 88, 
Mass. Agr. Coll., pp. 276-278, 1903. 
Exuisit: Infested twig. 
THE EUROPEAN FRUIT-SCALE. 
Aspidiotus ostrexformis Curt. 
(Food plants: Apple, cherry, maple, oak, peach, pear, etc. ) 
For bibliography and food plants see Fernald, Cat. Coccidze of World, Bul. 88, 
Mass. Agr. Coll., pp. 268-276, 1903. 
Exuisit: Infested twig. 
THE SCURFY SCALE. 
Chionaspis furfura Fitch. 
(Food anise Apple, cherry, currant, elm, pear, etc.) 
For bibliography and food plants see Fernald, Cat. Goecide of World, Bul. 88, 
Mass. Agr. Coll., pp. 217-219, 1903; Howard, Yearbook, U.S. Dept. Agric., 1894, 
pp. 259-261, figs. ; Banks, Bul. 34, Div. Ent., U.S. Dept. Agric., p. 14, 1902. 
Exnuisit: Infested twig. 
OYSTER-SHELL SCALE. 
Lepidosaphes ulmi Linn. 
(Attacks principally apple, currant, Cornus, cottonwood, lilac, pear, sassafras, etc. 
Formerly Mytilaspis pomorum Bouché. ) 
For bibliography and food plants see Fernald, Cat. Coccide of World, Bul. 88, 
Mass. Agr. Coll., pp. 314-317, 1903. 
Exnursit: Infested twig. 
THE BLACK SCALE. 
Saissetia olex Bern. 
(Food plants: Apple, apricot, olive, orange, pear, plum, rose; formerly Lecanium. ) 
For bibliography and food plants see Fernald, Cat. Coceide of World, Bul. 88, 
Mass. Agr. Coll., pp. 205-206, 1903. 
Exursir: Infested twig. 
