CONTENTS, XIII— XXIV 



THIRTEENTH REPORT 



PAGE 



List of Descriptions 



Letter of Transmittal 9 



The Wheat-bulb Worm 13-29 



The Wheat Straw-worm 30-38 



Notes on Insects affecting Sorghum and Broom-corn 39-56 



Literature 40 



Recent Observations 41 



Plant-lice 41-54 



Chaitophorus tiavus, n. s 42-46 



Aphis maidis | includes A. maidiradicis] 46-50 



Siphonophora sp 50 



Schizoneura panicola 51-54 



The Corn Root-worm 55 



The Black-headed Grass-maggot 57-59 



Insects Injurious to the Strawberry 60-180 



Introductory ' 60 



List of Strawberry Insects 61 



Literature 62 



A Classification of Insect Injuries to the Strawberry, with Sugges- 

 tions of Remedies for them 64 



A Classification of Remedial Measures 66 



Description and Discussion of Species 70-177 



The Mason Bee 70 



The Strawberry False Worm 71-76 



The Rose-slug 76 



The Brown Strawberry Spanworm 76 



The Horned Spanworm 79 



The Green Strawberry Spanworm 80-81 



The Smeared Dagger 82-84 



The Army- worm 84 



Cutworms 84 



Flea-beetles 86 



The Strawberry Leaf-beetles 86 



Grasshoppers 87 



The Common Strawberry Leaf-roller. 87-93 



The Oblique-banded Leaf-roller 94 



The Plain Strawberry Leaf-roller 95-96 



The Peach-tree Leaf-roller 97 



The Strawberry Leaf-stem Gall 97 



The Maple Bark-louse 9S 



The Strawberry Plant-lice 98-104 



Literature 99 



Description 100 



Siphonophora fragariee 100 



Siphonophora minor, n. s 101 



Aphis sp 102 



Natural Enemies 103 



Remedies 104 



The False Chinch-bug 104-106 



The Red Spider 106 



The Flea Negro-bug 106-111 



9 



