IV TABLE OF CONTENTS. 



Page^ 

 Insects injurious to the butternut 337 



Affectiug the trunk and limbs, 337 — Affecting the leaves, 338— Other species 

 living on the butternut, 342. 

 Insects injurious to the chestnut 343 



Affecting the trunk and limbs, 343 — Affecting the leaves, 344 — Affecting the 

 fruit, 350 — Other species preying on the chestnut, 353. 



Chapter IV. 



Insects injurious to the locust tree 355 



Affecting the trunk, 355 — Affecting the leaves, 361 — Other insects feeding 

 ou the locust, 372. 



Chapter V. 



Insects injurious to the different species of maple 374 



Affecting the trunk, 374 — Boring in the twigs, 391 — Affecting the leaf-buds, 

 392— Affecting the leaves, 392— Other insects occurring ou the maple, 

 424. 



Chapter VI. 



Insects injurious to the cottonwood 42& 



Affecting the roots, 426— Affecting the trunk and branches, 426 — Affecting 

 the leaves, 428. 



Insects injurious to the poplar 435 



Affecting the trunk, 435 — Affecting the leaves, 445 — Other insects feeding 

 on the poplar, 472. 



Insects injurious to the iass-wood or linden tree 474 



Affecting the trunk, 474 — Affecting the leaves, 475— Other insects living on 

 the linden, 480. 



Chapter VII. 



In sects injurious to the Mrch 483; 



Injuring the trunk, 483 — Affecting the leaves, 486 — Other species occurring 

 on the birch, 514. 



Chapter VIII. 



Insects injurious to the beech ^ 515 



Affecting the trunk, 515 — Affecting the leaves, 515 — Other insects occurring 

 on the beech, 519. 



Chapter IX. 



Insects injurious to thewild cherry, ^vildplum, the thorn, crdb-apple and mountain ash. 521 



Insects affecting the wild cherry : Affecting the trunk, 521 — Affecting the 

 leaves, 522 — Other insects, .529. 



Insects affecting the wild plum : Feeding on the leaves, 530 — Feeding on the 

 fruit, .530 — Other insects, 531. 



Insects affecting the service-berry or June berry, 531. 



Insects affecting the wild thorn : Affecting the leaves, 532 — Other insects, 

 535. 



Insects injurious to the crab-apple: Affecting the leaves, 537. 



Insects injurious to the mountain ash: Affecting the leaves, 537 — Other in- 

 sects, 539. 



Chapter X. 

 Insects injurious to the ash 540 



Affecting the trunk and branches, 540— Affecting the leaves, 544 — Other in- 

 sects occurring on the ash, 555. 



