

CONTENTS— «0M/. 



PAGE 



India : Notes on Forest Insect Pests in Burma . . . . 522 



India : Measures against Agrotis ypsiloji in Bihar and Orissa 52'2 



India : New Species of Braconidae . . .... 558 



India : New Weevils attacking Forest Trees . . . . . . 558 



Italy : New Food-plants of Saturnia cynthia . . . . . . . . 536 



Italy : Measures against Pieris brassicae . . . . . . . . . . 544 



Italy : The Necessity for Encouraging Prospaitella berlesei in Sicily . . 546 



Mexico: The Control of Cutworms in Chilli Plantations .. .. 551 

 New Zealand : The Introduction of Aphelinus mali, a Parasite of the 



Woolly Aphis 534 



Porto Rico : The Occurrence of the Pink Bollworm . . . . . . 560 



Russia 

 Russia 

 Russia : 

 Russia : 

 Russia : 

 Russia ; 

 Russia ; 



Measures against Orchard Pests . . . . . . . . . . 551 



Measures against Vegetable Pests. . . . . . 552, 553, 555 



The Organisation of Measures against Plzint Pests, 552, 553. 554, 556 

 Parasites of Insects Injurious to Pisciculture . . . . . . 555 



The Relation of Meteorological Conditions to Insect Pests 

 Homoptera from the Caucasus 

 Insect Pests in the Tula District 



556 

 556 



556 



530 

 558 

 559 

 544 

 540 

 545 

 545 



523, 524. 525 

 526 

 526 

 on Date 



538. 539 

 . . 539 

 .. 544 

 .. 557 



Seychelles : Notes on Insect Pests in 1920 



Seychelles : Notes on Coccidae 



Seychelles : A List of Insect Pests 



Spain : Plant Malformations of Animal Origin 



Switzerland : Measures against Phylloxera 



Switzerland r Measures against Cutworms 



Switzerland : The Influence of Temperatures on Cockchafers 



U.S.A. : Measures against Orchard Pests in New Jersey in 1917-19, 



U.S.A. : Experiments with Sprays for Aphids 



U.S.A.: Cranberry Investigations in New Jersey .. 



U.S.A. : The Bionomics and Control of Phoemcococcus marlatti 



Palms in California 

 U.S.A. : The Life-history of Strigoderma arboricola in Kansas 

 U.S.A. : Notes on Wheat Pests in Ohio in 1921 .. 

 U.S.A. : Haploa lecontei infesting Apple Trees in Kentucky 



West Indies : Pink Bollworm in the Leeward Islands and Porto Rico 



537. 560 

 West Indies : The Bionomics and Control of the Citrus Black Fly in 



Jamaica . . . . . . . . . . . . . , . . . . 543 



West Indies : Cotton Pests in Tortola . . . . . . . . . . 560 



The Practical Significance of the Revolution of the Embryo in Aphid Eggs 521 



Spermatogenesis of Aphids . . . . . . . . . . . , . . 523 



Weevils of North Eastern America (Review) . . . . . . . . 532 



Experimental Production of Winged Forms in Aphids . . . . . . 532 



A Handbook of Entomology (Review) . . . . . . . . . . 535 



A List of Nematodes of Agricultural Importance . . . . 543 



Diagrams of Insect Development in Relation to the Calt-iid . . 547 



The Collection and Preservation of Thrips . . . . . . . . 556 



The Synonomy of Tachycines and Diestrammena . . . . . . . . 557 



The Ptinid Beetle, Trigonogeniux glohulum, breeding in Argol . . . . 558 



Insect Transformation (Review) . . . . . . . . . . . . 560 



Legislation : Against Plant Pests in the British Empire . . . . 532 



Legislation : Against Plant Pests in Ceylon 532 



