IV CONTENTS. 



Page. 



Distribution 59 



Life History 60 



Character and Extent of Injuries to Vegetation 61 



Natural Enemies G4 



Prevention and Remedy 66 



The Grain Leaf Hoppers 67 



Gicadula nigrifron s 67 



Cicad'da qaadrilin-ahiK 68 



III. Brief Note.s on Sorghum Insects 70 



The Yellow Sorghum Plant Louse 70 



The Sorghum Bark Louse 71 



IV. On Some Clover Insects 72 



Cymatophora crepusculm^ia 72 



The Clover Bark Louse 72 



Description 73 



Clover Mites 73 



Miscellaneous Notes 74 



Contributions to Horticultural Entomology 75 



I. On Now and Imperfectly Known Strawberry Insects 77 



Note on the Life History of the Strawberry Slug 77 



The Lesser Strawberry Aphis ^ 79 



The Tarnished Plant Bug 79 



Description of Egg 79 



Loplioderus velutinanus 81 



Supplementary Notes on the Strawberry Root Worms 81 



II. On a Few Grape Insects 83 



Petrophora diversilineata , 83 



The Vine-loving Fruit Fly 83 



Phytoptis vitis 84 



III. On New Insect Enemies of the Blackberry and Raspberry 87 



The Blackberry Leaf Miner 87 



Description of Genus 87 



Description of Species 87 



Lophodcrus velutinanus 88 



Pyrrhi i umhra 88 



Literature 88 



Description ; 89 



Distribution and Life History 90 



Injuries to Vegetation 90 



The Raspberry Plume Moth 91 



IV. On the Speckled Cutworm as a Cabbage Worm , 93 



Description 93 



Life History 94 



V. Notes on Insects Injurious to the Apple and Pear 95 



Datana contrncla 95 



Biston ypsilon 95 



The Apple Leaf Roller 97 



The Apple Leaf Skeletonizer and the Lesser Apple Leaf Roller 97 



Crepidodera helxines 98 



The Apple Plant Louse 98 



The Yellow Jumping Pear Louse 98' 



The Willow Saw Flies lOO 



VI. On Some Insect Enemies of the Soft Maple 103 



Notes and Experiments on the Soft Maple Bark Louse 103 



Kerosene Emulsion '. I115 



Whale Oil Soap 107 



