CONTENTS 



Proceedings of the Twenty-Sixth Annual Meeting of the American Association 



of Economic Entomologists (Papers continued) 



PAoa 



Some Properties of Various Forms of Arsenate of Lead J. A. Dew 162 



Can Insects Become Resistant to Sprays? A. L. Melander 167 



The Reaction of Sugar Maples to Miscible Oils • E. P. Felt 173 



The Relation of Temperature to Insect Development L. M. Peairs 174 



Further Exjierience with an Insectary W. C. 0' Kane 181 



Observations on the Bee-moth F. B. Paddock 183 



The Oviposition of Two Apple Pests G. W. Herrick 189 



Economic Notes on Leaf Hoppers in Maine • Herbert Osbom 192 



Two New Insect Pests of Currants and Gooseberries R. A. Cooley 193 



The Occurrence of the Warble Fly, Hypoderma hovia, in Canada « 



C. G. HemU 195 



Notes on the Onion Thrips and the Onion Maggot 



H. T. FemaU and A. I. Bourne 196 



A New Destructive Cutworm of the Genus Poroaagrotis Occurring in 



Western Canada Arthur Gibson 201 



Reducing Insect Injury to Stored Corn W. E. Hinda 203 



Sterility in Oats Caused by Thrips C. G. Hemlt 211 



Egg-Laying Habits of the Pecan Twig Girdler > C. L. Melcalf 218 



A Parasite of the Chinch Bug Egg J. W. McCoUoch and H. Yuasa 219 

 The Parasites of the San Jos6 Scale in New York 



H. E. Hodgkiss and P. J. Parroll 227 

 The Importance of the Measure of Evaporation in Economic Studies of 



Insects V. E. Shelford 229 



Proceedings of the Twelfth Annual Meeting of the American Association of 

 Official Horticultural Inspectors (Papers continued). 



Quarantine against the Mexican Cotton Boll Weevil W. D. Hunter 234 

 Notes on Entomological Inspection in the District of Columbia 



E. R. Sasscer 240 



New Jersey State Anti-Mosquito Convention W. E. B. 244 



The Genus Pseudokermes in Montana G. B. King 246 



A Note on Sigismond Mokshetsky and His Work in the Crimea L. 0. Howard 247 

 The Use of Atmometers to Measure Evaporation in the Study of Insects 



V. E. Shelford 249 



Scientific Notes 250 



Editorial 253 



Current Notes 254 



'Withdrawn for publication elsewhere. 



