34 



THE WALNUT SCALE. 



Aspidiotus juglans-regise Comst. 



(Food-plants: Ash, cherry, crab-apple, currant, English walnut, 

 locust, peach, pear, prune, etc. See under "More important scale 

 insects.") 



For bibliography and food plants see Fernald, Cat. Coccidse of 

 World, Bui. 88, Mass. Agr. Coll., p. 265, 1903. 



Exhibit: Infested twig. 



THE GREEDY SCALE. 



Aspidiotus rapax Conist. 



(Food-plants: Cottonwood, maple, olive, pear, quince, apple, etc. 

 See under "More important scale insects.") 



For bibliography and food plants see Fernald, Cat. Coccidse of 

 World, Bui. 88, Mass. Agr. Coll., pp. 276-278, 1903. 



Exhibit: Infested twig. 



THE EUROPEAN FRUIT SCALE. 



Aspidiotus ostreseformis Curt. 



(Food-plants: Apple, cherry, maple, oak, peach, pear, etc. See 

 under "More important scale insects.") 



For bibliography and food plants see Fernald, Cat. Coccidse of 

 World, Bui. 88, Mass. Agr. Coll., pp. 268-270, 1903. 



Exhibit: Infested twig. 



THE WEST INDIAN PEACH SCALE. 

 Diaspis pentagona Targ. 



(See under "More important scale insects.") 



For bibliography and partial list of food plants see Fernald, Cat. 

 Coccidse of World!! Bui. 88, Mass. Agr. Coll., pp. 231-235, 1903; Riley 

 and Howard, Insect Life, v. VI, pp. 287-295, figs., 1894. 



Exhibit: Infested twig. 



THE ROSE SCALE. 



Aulacaspis rosse Bouche. 



(Food-plants: Blackberry, mango, myrtle, pear, raspberry, rose, 

 Cycas, Ailanthus, etc. See under "More important scale insects.") 



For bibliography see Fernald, Cat. Coccidse of World, Bui. 88, 

 Mass. Agr. Coll., p. 236, 1903. 



Exhibit: Infested twig. 



THE WOOLLY APPLE APHIS. 



Schizoneura lanigera Hausm. 



For general account see Marlatt, Cir. 20, Div. Ent., U. S. Dept. 

 Agric, 1897. 



Exhibit: Infested roots, twigs, and figure. 



