CONTENTS 



PAGE 



American Association of Economic Entomologists, Pacific Slope Branch, Pro- 

 ceedings 

 Members Present 281 



Business Session 282 



Papers 

 A Suggestion of a Possible Control of the Pea and Bean Weevils 



R. E. Campbell 284 

 On Some Phases of Insect Control by the Biological Method 



H.S.Smith 288 

 Observations on Some Mealy Bugs, Hemiptera, Coccidae G. F. Ferris 292 

 Migratory Locusts in the Philippine Islands^ D. B. Mackie 299 



The Alfalfa Weevil in Colorado^ G. M. List 299 



The Physical and Chemical Properties of Liquid Hydrocyanic Acid^ 



G. P. Gray 299 

 A Dosage Schedule for Citrus Trees with Liquid Hydrocyanic Acid' 



R. S. Woglum 300 

 The Stratification of Liquid Hydrocyanic Acid as Related to Orchard 



Fumigation R. S. Woglum and M. B. Rounds 300 



Notes on the Behavior of the Beet Leafhopper, Eutettix tenella 



H. H. P. Severin 303 

 Weevils in Australian Wheat in California R. W. Doane 308 



Investigations of the Beet Leafhopper, Eutettix tenella, in California 



H.H. P. Severin 312 

 Biological Notes on the Flatheaded Apple Tree Borer, Chrysobothris 

 femorata, and the Pacific Flatheaded Apple Tree Borer, Chrysobothris 

 mali H.E. Burke 326 



Lac Producing Insects in the United States, Hemiptera, Coccidae 



G. F. Ferris 330 

 Insect Problems of Western Shade Trees F. B. Herbert 333 



The Value of Molasses and Syrups in Poisoned Baits for Grasshoppers 



and Cutworms A. W. Morrill 337 



Effect of Excessive Sterilization Methods on the Germination of Seeds 



E. R. De Ong 343 

 The Absence of Insect Pests in Certain Localities and on Certain Plants 



T. D.A. Cockerell 345 

 Some Recently Recorded Parasites of the Oriental Peach Moth 



L. A. Stearns 347 

 The Strength of Nicotine Solutions V. I. Safro 349 



Scientific Notes 351 



Editorial 352 



Current Notes 353 



'Withdrawn for publioation olsfiwhere 



