CONTENTS— eonl. 



PAGE. 



The Control of Pegomyia Jiyoscyami in Britain . . . . . . 402 



Pests of Vegetables in Missouri . . . . . . ^. . . 403 



The Periodical Cicada in Missouri . . . . . . . . . . 403 



Leaf-miner Pests in Maryland . . . . . . . . . . . . 404 



Pests of Japanese Sugar-Cane in Texas . . . , . . . . 404 



New Sawflies and Parasitic Hymenoptera from U.S.A. . . . . 404 



A New American Parasite of the Hessian Fly, Mayetiola destructor 405 



The Type Species of the Genera of Cynipoidea . . . . . . 405 



Tests of Sulphur-Arsenical Dusts against the Strawberry Weevil 



in New Jersey . . . . . . . . . . . . . . 405 



Foul-brood Regulations in Texas . . . . . . . . . . 405 



Cotton Pests in the South-west of the U.S.A. 406 



keratitis capitata breeding in Bananas in Hawaii . . . . . . 406 



A Method of preparing Mealy-bugs for Identification . . . . 407 



Notes on Some Western Buprestidae in the U.S.A. . . . . 407 



Nicotine Sulphate as a Poison for Insects . . . . . . . . 407 



The Migratory Habits of Myzus ribis in U.S.A. . . . . . . 408 



Arsenic as an Insecticide . . . . . . . . . . . . 408 



Ehopalosiphum nymphaeae infesting Plums and Prunes in California 408 



The Value of the Cinematograph in Economic Entomology . . 409 



Differences between Coccus citricola and G, hesperidum . . . . 409 



The U.S.A. Bureau of Entomology and the War . . . . . . 410 



An Attempt to conserve Food Supplies in Alabama . . .. .. 410 



The White Grubs injuring Sugar-cane in Porto Eico . . . . 410 



Aspidiotus perniciosus in Texas .. .. .. .. ., 411 



The Bionomics of Toxnptera graminurn in Texas . . . . . . 411 



Insect Pests in Washington in 1915 and 1916 . . . . . . 412 



The Control of Injurious Insects and Plant Diseases in the tl.S.A. 413 



Sodium Cyanide as a Fumigant . . . . . . . . . . 413 



The Use of various Insecticides in the U.S.A. . . . . . . 413 



The Biology and Control of HelopeUis on Tea in Java . . . . 413 



Tea Pests in Java in 1916 . . , . . . . . . . . . 416 



Seeds attacked by Lasioderma in Sumatra . . . . . . . . 417 



Phthorimaea operculella on Wild Tobacco in Sumatra . . . . 417 



The Protection of Stored Tobacco from Insect Pests in Sumatra. . 417 



Diseases and Pests of Coconuts in the Dutch East Indies . . . . 417 



The Relation between Insects and Fruit Tree Canker in Switzerland 419 



Notes OE^, American Tin GiDAE .. .. .. .. .. .. 419 



Weevils 'of the Genus Dia;pre_pes in the West Indies. . .. .. 420 



Gryllotalpa gryllotalpa and its Control in France . . . . . . 420 



The Control of Lepidosaphes ficus in California . . . . . . 420 



A Record of Sitones Mspid^dus from California . . . . . . 421 



A Record of ComstocJciella sabilis from California . . . . . . 421 



Grasshopper Control in California . . . . . . , . . . 421 



TTie Argentine Ant as an Orchard Pest in U.S.A. . . . . . . 422 



A Record of Bhagoletis ribicola from California . . . , . . 422" 



Pests intercepted in Quarantine in California . . . . . . 423 



The Control of Mushroom Pests in U.S.A. . . . . . . . . 423 



Some Colorado Species of the Genus Lachnus . . . . . . 424 



The Pacific Coast Species of Xylococcus . . . . . . . . 425 



An Investigation into the Causes of Hibernation . . . . . . 425 



The EstabUshment of Scolia mayiilae in Hawaii to control Anomala 



and Adoretus . . . . . . . . . . . . . . 426 



The Structure and Carnivorous Habits of some Anthomyiid Larvae 427 



Insect Pests in Jamaica in 1916-1917. . .. .. .. .. 429 



The North American Chalcids of the Genus PacJiyneuron . . . . 431 



Descriptions of two Califomian Aphids . . . . . . . . 432 



The Codling Moth in the Pecos Valley, New Mexico . . . . 432 



The Toxicity to Insects of Various Benzene Derivatives . . . . 432 



Plant Pest Legislatioii in Minnesota. . . . . . . . . . . 432 



