21 
THE SCURFY SCALE. 
Chionaspis furfura Fitch. 
(Food plants: Apple, cherry, currant, elm, pear, etc. ) 
For bibliography and food plants see Fernald, Cat. Coccidee of World, Bui. 88, 
Mass. Agr. Coll., pp. 217-219, 1903; Howard, Yearbook, U. 8. Dept. Agric., 1894, 
pp. 259-261, figs.; Banks, Bul. 34, Div. Ent., U. S. Dept. Agric., p. 14, 1902. 
Exuisit: Infested twig. 
SINUATE PEAR-BORER. 
Agrilus sinuatus Ol. 
For general accounts see Smith, Rpt. Entom. N. J. Agr. Exp. Sta. f. 1894, pp. 
556-561, 1895; Banks, Bul. 34, Div. Ent., U.S. Dept. Agric., pp. 40-41, 1902. 
Exuisir: Adult and figure. 
INSECTS INJURIOUS TO PLUM. 
THE PLUM CURCULIO. 
Conotrachelus nenuphar Hbst. 
For general account and bibliography see Lintner, 7th Rpt. N. Y. St. Ent., pp. 
288-296, 1891. 
Exnursir: Adult, figure, and enemies, Aspidoglossa subangulata Chd., Chauliognathus 
pennsylvanicus DeG., Harpalus caliginosus Fab., and parasite Sigalphus curculions Fitch. 
THE PLUM GOUGER. 
Anthonomus scutellaris Lee. 
(Formerly Coccotorus prunicida Walsh. ) 
For general accounts see Riley and Howard, Insect Life, Vol. II, pp. 258-259, 
1890; Gillette, Bul. 47, Colo. Agr. Exp. Sta., pp. 20-22, 1898. 
ixuipit: Adult, work, and figure. 
THE HOP APHIS. 
Phorodon humuli Sehr. 
(Attacks hop and plum. ) : 
For full life history see Riley, Cir. 2, Div. Ent., U. S. Dept. Agric., 1891. 
Exursir: Adult and work. 
FORBES’ SCALE; CHERRY SCALE. 
Aspidiolus forbesi Johns. 
For bibliography and food plants see Fernald, Cat. Coccidee of World, Bul. 88, 
Mass. Agr. Coll., pp. 259-260, 1903. 
Kxutsir: Infested twig. 
INSECTS INJURIOUS TO GRAPE. 
For the more important grape insects see Marlatt, Farmers’ Bul. 70, U. S. Dept. 
Agric., 1898; Saunders, Insects Injurious to Fruits, 2d edition, pp. 227-302, 1900; 
Bruner, Nebr. State Hortic. Soc. Rept. f. 1895, pp. 69-162, 1896. 
INJURING THE ROOTS. 
THE TILE-HORNED PRIONUS. 
Prionus imbricornis Linn. 
For general account of Prionus species see Lugger, 5th Rpt. St. Ent. Minn., pp. 
110-111, 1899. 
Exuipit: Adult. 
THE GRAPEVINE ROOT-BORER. 
Memythrus polistiformis Harr. 
(Formerly Sciapteron. ) 
For general account see Lugger, 4th Rpt. St. Ent. Minn., pp. 55-57, 1899. 
EXHIBIT: Figures. 
