15 



THE BLACK SCALE. 



Saisseiia oless Bern. 



(Food plants: Apple, apricot, olive, orange, pear, plum, rose; 

 formerly a Lecanium.) 



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

 World. Bui. 88, Mass. Agr. Coll., pp. 205-206, 1903. 



Exhibit: Infested twig, and parasite Coccophagus cognatus How. 



THE ORANGE CHIONASPIS. 



Chionaspis citri Comst. 



(Food plants: Enonymus, orange, palms, etc.) 



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

 World, Bui. 88, Mass. Agr. Coll., pp. 214-215, 1903; Marlatt, Year- 

 book, U. S. Dept. Agric, f. 1900, p. 270, 1901. 



Exhibit: Infested twig. 



THE SCURFY BARK-LOUSE. 



Chionaspis furfur a Fitch. 

 (Food plants: Apple, cherr}^, currant, elm, pear, etc.) 

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

 World, Bui. 88, Mass. Agr. Coll., pp. 217-219, 1903; Howard, Year- 

 book, U. S. Dept. Agric, f. 1891, pp. 259-261, 1895, figs.; Banks, 

 BuL 31, Div. Ent, IT. S. Dept. Agric, p. 11, 1902. 

 Exhibit: Infested twig and figures. 



THE WEST INDIAN PEACH SCALE. 



Diaspis pentagona Targ. 



For bibliography and partial list of food plants under Aulacaspis 

 see Fernald, Cat. Coccida? of W^orld, Bui. 88, Mass. Agr. Coll., pp. 

 234-235, 1903; Riley and Howard, Ins. Life, Vol. VI, pp. 287-295, 

 1891, figs.; Banks, Bui. 31, Div. Ent., U. S. Dept. Agric, p. 21, 1902. 



Exhibit: Infested twigs and figures. 



THE ROSE SCALE. 



Aulacaspis rosee Bouche. 



(Food plants: Blackberry, mango, ix^rtle, pear, raspberry, rose, 

 Cycas, Ailanthus, etc.) 



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

 Agr. Coll., p. 236, 1903; Banks, Bui. 31, Div. Ent., U. S. Dept. Agric, 

 p. 23, 1902. 



Exhibit: Infested twig and figure. 



THE HORSE-CHESTNUT SCALE. 



Aspidiotus assculi Johns. 

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

 World, Bui. 88, Mass. Agr. Coll., pp. 251-252, 1903. 

 Exhibit: Infested twigs. 



