CONTENTS— com. 



Testing for the Presence of Nicotine on Sprayed Plants? 



A Clerid Larva predao^ous on Codling Moth Larvae . . 



The Infestation of Potatoes by a Midge in U.S.A. 



BmssoUs istJmiia infesting Coconuts in Panama 



The Bionomics of Marmivra eloteUa infesting Apple Twigs in 



Massachusetts 

 New Species of Economic Mites in U.S.A. 

 The Apple and I'horn Skcletoniser, Eemerophila pariana, in U.S. A 

 Bhopal'>f'inh'"o "■"'■^"haeac in Now York .. 

 Mtiociu'dj':^ lacking Cotton Seedlings in Arizona 



A rJccoLid .L.„^ __ jjT of the European Egg-Parasite of the Elm 



Leaf-Beotie into U.S.A. 

 A Preliminary List of the Colooptera of Quebec 

 The Natural Immunity of Plants to Insect Attack in British Columbia 

 Insect Pests in the Philippines in 1916. . 

 Insect Pests in Massachusetts in 1916 . . . . 



SarcopJwga nigriventris infesting Molluscs in England 

 Oryctes monoceros infesting Coconuts in British East Africa . . 

 Citrus Pests in Cliina and Japan 

 The Selection of Petroleum Insecticides 

 Measures against Eriosoma pyricola in California 

 The Campaign against Fseudococcus citropMlus in California 

 The Scorching Effects of Sulphur Sprays in Hot Chmates . . 

 Cydia pomonella infesting Pears in California . . 

 Pests intercepted in Quarantine in California . . 

 The Immunity of Teosinte-Maize Hybrids to Aphids in U.S.A. 

 Tlie Organisation of Economic Entomology in Russia 

 The Foundation of the South Russian Entomological Society 

 Precautions against Schistocera paranensis in British Guiana 

 The Life History of Macrosiphwn illinoisensis, the Grapevine Aphis, 



inU.S.A 



PMliorhnaea operculellu infesting Potatoes in Algeria . , 

 Experiments with a Parasitic Fungus of the Cacao Thrips in Grenada 

 Miscellaneous Pests in Grenada . . . . . . 



Pla,nt Legislation in Grenada 



The Cultivation of Liberian Coliee in the Malay States 



The Relations of Ecology and Economic Entomology 



A List of the Thysanoptera of Plummer's Island, Maryland 



New American Lepidoptera 



New Australian Chaloids . . 



Dipterous Parasites of Terrestrial Isopods 



The Natural Enemies of Ohrysomphalus dictyospermi in Italy 



Oasea ktzonica, sp. n., a Parasite of Schisaspih Ichata in the Philippines 



The Utilisation of Beneficial Insects 



Measures against Oydia pomonella in Holland . 



Mdigctlies aeneus infesting Cabbage in Holland 



Pests of Tea in Sumatra , . 



Insect Pes is in Northern Africa . . 



Cotton Pests in Brazil 



Beneficial Parasites distributed in Hawaii 



Pests intercepted in Hawaii 



Circulars on Insect Pests in Pennsylvania 

 Plant Pest Legislation in Mysore 

 Plant Pest Legislation in Pennsylvania 

 Legislation respecting Cylas formicarius in Florida 



PAGE. 



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