37 



THE APPLE-TWIG BORER. 



Amphicerus bicaudatus Say. 

 For general account see Marlatt, Farmers' Bui. 70, U. S. Dept. 

 Agric, pp. 11-13, figure, 1898. 

 Exhibit: Adult and figure. 



ROUND-HEADED APPLE-TREE BORER. 



Saperda Candida Fab. 

 For general account see Chittenden, Circ. 32, Div. Ent.,U. S. Dept. 

 Agric, pp. 1-8, 1898. 



Exhibit: Adult and figure. 



FLAT-HEADED APPLE-TREE BORER. 



Chrysobothris femorata Fab. 

 For general account see Chittenden, Circ. 32, Div. Ent.,U. S. Dept. 

 Agric, pp. 9-12, 1898. 



Exhibit: Adult and figure. 



FRUIT-TREE BARK BEETLE; SHOT-HOLE BORER. 



Scolytus rugidosus Ratz. 

 For general account see Chittenden, Circ 29, Div. Ent.,U. S. Dept. 

 Agric, 1898. 



Exhibit: Adult and figure. 



THE PEAR PSYLLA. 



Psylla pyrl Linn. 

 For general accounts see Slingerland, Bui. 44, Cornell Univ. Agr. 

 Expt. Sta., 1892; Marlatt, Circ. 7, Div. Ent., U. S. Dept. Agric, 1895. 

 Exhibit: Figure. 



THE PEAR BLISTER MITE. 



Eriophyes pyri Pagenst. 

 For detailed account see Slingerland, Bui. 61, Cornell Univ. Agr. 

 Expt. Sta., pp. 317-328, figures, 1893. 

 Exhibit: Work and figure. 



INSECTS INJURIOUS TO GRAPE. 



For the more important grape insects see Marlatt, Farmers' Bui. 

 70, U. S. Dept. Agric, 1898; Saunders, Insects Injurious to Fruit, 

 2d edition, pp. 227-302, 1900; Bruner, Nebr. State Hortic Soc Kept, 

 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. 

 . Exhibit: Adult. 



