TABLE OF CONTENTS. V 



Chapter XI. 



Page. 

 Insects injurious to the tcillow 557 



Affecting the trunk, 557 — Injuring the leaves, 559 — Other insects occurring 

 on the willow, 596. 



Chapter XII. 



Insects injurious to the hackherry 601 



Injuring the leaves, 602 — Boring in the trunk, 610 — Cecidomyidous hack- 

 berry galls, 612 — Hackberry Psyllidae, 614. 



Chapter XIII. 

 Insects preying upon the alder 623 



Boring in the trunk, 623 — Injuring the leaves, 625 — Other insects of the 



alder, 636. 

 Insects injurious to the hazel : Feeding on the leaves, 637 — Affecting the 



nuts, 64] — Other insects, 641. 



Chapter XIV. 

 Insects injurious to the sycamore, etc 643 



Boring in the trunk, 643— Eating the leaves, 644 — Other insects also occur- 

 ring on the sycamore, 646. 



Insects injurious to the hop-hornbeam, or iron- wood, 647. 



Insects infesting the water-beech, hornbeam, 650. 



Insects injurious to the sassafras, 650. 



Insects injuring the honey-locust : Affecting the leaves, 652 — Other insects 

 of the honey-locust, 653. 



Insects injuring the horse chestnut, or buckeye: Boring in the terminal 

 twigs, 654 — Affecting the leaves, 656. 



Insects of the sweet-gum, 657. 



Insects injurious to the sour-gum tree, 657. 



Insects injurious to the prickly ash : Affecting the trunk and limbs, 659 — 

 Eating the leaves, 661. 



Insects of the tulip tree, 663. 



Insects injurious to the sumach, 664. 



Insects iujurious to the poison ivy, 665. 



Insects affecting the catalpa : Affecting the leaves, 666 — Affecting the pods, 

 666. 



Insects injurious to the witch hazel, 668. 



Insects injurious to the magnolia, 669. 



Insects injurious to the papaw, 669. 



Insects injurious to the tree of heaven, 669. 



Insects injurious to the box elder, 669. 



Insects injurious to the mesquite, 670. 



Insects injurious to the persimmon, 671. 



Insects iujurious to the California bay or laurel, 671. 



Insects affecting the China tree. 671. 



Insects injurious to the dogwood, 672, 



Insects injurious to the box, 672. 



Insects injurious to the black alder, 673. 



Insects injurious to the Kentucky coffee tree, 673. 



Chapter XV. 



Insects injurious to the pine 674 



Affecting the roots, 675 — Affecting the trunk, 676— Affecting the twigs, 735 — 

 Affecting the leaves, 756 — Other insects occurring on the pine, 809. 



