CONTENTS— ctmt. 



PAGE 



Sugar-cane Pests and their Control in Queensland . . , . . . 109 



A New Bark-beetle from Japan .. .. ., .. .. no 



Termites infesting Buildings in China .. .. ., .. m 



New Aphids from Formosa .. .. .. .. .. .. m 



Synopsis of the Pemphigid ae of Japan . . . . . . . . 1 1 1 



Notes on the Classification of Calif ornian Aphids . . . . . , 112 



The Tea Tortrix, Eomona coffeaHa, and its Control in Ceylon . . 112 



Pests of the Castor Oil Pl£tnt in Ceylon 113 



2Ve^^«TC/is serwojja infesting Palms in Ceylon .. .. .. 113 



Precautions against Pecfiwo2?^ora gross2/2J'ieZ?a in Barbados . . .. 113 



The Bionomics of Pempfeeres a^ms infesting Cotton in In(ia .. 114 



Insect Pests in Assam in 1917-18 .. .. .. .. .. 114 



Observations on the Mode of Action of Contact Insecticides . . 115 



Coleophora sacramenta infesting Prviit Trees in California . . . . 116 



Pyrausta penitalis a Pest of Lotus in U.S.A.. . . . . . . . 116 



Tho BionomicB of Anastrepha fraterculus in Argentina, .. .. 117 



The Life-History and Early Stages of Cdlophya nigripermiB in U.S.A. 119 



Three species of Anasa injurious to Cucumbers in tj.S.A. . . . . 120 



Insect Pests in Tasmania . . . . . . . . . . . . 120 



The Construction of a Portable Insectary . . . . . . . . 121 



Bombyliids infesting Grasshoppers in California . . . . . . 121 



Pests of the Castor Oil Plant in California . . . . . . . . 121 



Grylliis assimilis as a Cotton Pest in Mississippi . . . . . . 122 



Gracillaria sachrysa attacking Apple Foliage in North Western India 122 



Successful Measures against Locusts in the Philippines . . . . 122 



Cydia leplastriana infesting Cabbages in France . . . . . . 122 



The Spread of Aulacaspis pentagona in the South of France . . 123 

 Attempts to control Glysia ambiguella and Polychrosis botrana by 



means of parasitic Fungi, in France . . . . . . . . 123 



Insect Pests in Holland in 1918 123 



Experiments in the Control of Eeterodera radicicola in Holland . . 124 



Xyleborus perforans infesting Coffee in Dutch Guiana . . . . 125 



Oxycarenus Jiyalinipennis, infesting Cotton in Italian Somaliland. . 126 



New and Beneficial Hymenopterous Parasites from Brazil . . 125 



The Bionomics of Papilio thoantiades infesting Citrus in Brazil . . 125 



Sitotroga eerealella, a Grain Pest in Argentina . . . . . . 126 



Orchard and Vineyard Pests in Switzerland in 1916 . . . . 126 



Successful Measures against Orchard Pests in British Columbia . . 126 



Insect Pests intercepted in Quarantine in California . , . . 126 



Insect Pests im Malaya in 1917. . .. .. .. .. .. 127 



Measures against Psylla pyncola in Canada . . . . . . . . 129 



Notes on the Relation of Insect Control to Cultural Practices in 



Western Ontario . . . . . . . . . . . . . . 130 



The Extension of Economic Entomology in Canada . . . . 130 



Experiments in the Fumigation of Orchids with Hydrocyanic- Acid 



Gas .. 130 



Insect Pests in Porto Rico in 1918 . . . . 131 



Bhizopertha dominica infesting Stored Wheat in N.S.W. . . . . 132 



Insect Pests and their Control in India in 1917-18 . . . . , . 132 



The Importance of destroying Castor Oil Plants in Tea Plantations 



in Ceylon . . . . . . . . . . . . . • • • 135 



The Spread of the Bee-hole Borer, Duomitus ceramicus, in Teak 



Forests in Burma . . . . . . . . . . . . 136 



The Longevity of Scale Insects of the Genus Margarodes . . . . 136 



Entomological Notices . . . . . . . . . . . . . . 136 



