CONTENTS--»w»/. 



Hawaii : Note on the Eggs of Araecerus fascicuiatus 



Hawaii : A Note on Cryplotermes brevis 



Hawaii : A new Immigrant Weevil attacking Banana 



Hawaii : A Dermestid infesting Garden Seeds 



Hawaii : The Sugar-cane Leafhopper and its Parasites 



India : Notes on New Sawflies 



India : Notes on Natada nararia 



India : A Flea-beetle attacking Pepper in North Malabar 



India : Experiments with Baits for Grasshoppers . . 



Ikdia : New Species of Thrips 



India : Triphleps tantilus, an Enemy of the Pink Bollwoma 



Italy : A Summary of Measures against Dacus oleae 



Java : Insect Pests in 1920-21 



Mesopotamia : Locusts and other Agricultural Pests 



Mexico : New Dipterous Parasites of Locusts 



Mexico : The History of the Pink BoUworm Invasion and of Measures 



against it 

 New Zealand : The Bionomics and Control of the Pear Leaf-curling 



Midge 

 New Zealand : Tests for Control of Leafhopper on Apple 

 Philippines : The Food-plants of Injurious Insects 

 Silesia : A Bark-beetle infesting Pines 

 Sweden : The Influence of Myelophilus piniperda on the Growth of Pines 

 Switzerland : Notes on Cerambycid Borers 

 Switzerland : Entomological Conditions in Alpine Forests 

 Switzerland : Notes on Pests of Alders 

 Switzerland : The Production of Sugar by Aphids 

 U.S.A. : A Comparison of Dusting and Spraying in New Jersey . . 



Notes on New Sawflies 



Cynipids producing subterranean Galls on Oak 



Insect Pests in Maine in 1 920 



Insect Pests in Texas in 1920 



Orchard Pests in Virginia 



Aphids and their Control in Virginia 



The Horse-radish Webworm {EvergesHs strqminalis) 



The Satin Moth, an introduced Enemy of Poplars 



Tipula spp. infesting Grassland in California 



Insects injurious to Decidupus Shade Trees and their Control 

 U.S.A. : Coleopterous Borers of Mesquite 

 U.S.A. : Heliothis obsoleia as a Pest of Vetch 



The Spread of the Pale Western Cutworm in Montana . . 



Miscellaneous Pests in Montana in 1920 



The Garden Flea-hopper on Lucerne and its Control 



Notes on Agricultural Pests in Utah 

 U.S.A. : Legislation relating to Agriculture in Pennsylvania 

 West Indies : Plant Quarantine Work in Porto Rico 

 West Indies ; Pseudococcus bromeliae on Pineapples in Porto Rico 

 Grubs injurious to Sugar-cane in Porto Rico 

 Notes on Banana Pests in Porto Rico 

 Precautions against Cotton Pests 

 Scale Insects infesting Citrus in Porto Rico 

 A Midge attacking Mangos in Trinidad 

 Sugar-cane Pests and Diseases in Trinidad in 1920 

 A Revision of the Genus Locusta 



Fumigation versus Spraying for Scale Insects . . . . , . 



The Making of Combined Sprays 

 The Chemistry of Spray Mixtures 

 A Supplement to the Literature of the Ichneumonids 

 Nicotine Sulphate as an Ovicide and Larvicide 

 Methods of Reproduction in Aphids . . 

 The Preparation of Insecticides 

 The Action of Calcium Hydrosulphate on the Shells of Lepidopterous Eggs 

 The Importance of Meteorological Conditions as affecting Insects. . 

 The Uses of Carbolineum as an Insecticide . . 

 The Action of Chloropicrin on Grain Pests . . 

 Inve.stigations on Adhesives for Addition to Sprays. . 

 The Question of the Original Habitat of the Vine Louse 

 Symbols for representing the Life-history of Insects 

 Urania Green in Block Form . . 

 A Substance for rendering Fabrics Moth-proof 

 Notes on Mites of the Ccmis Eriophyes 



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