CONTENTS 



Page 



MosHER, Edna. Notes on the Lepidopterous Borers Found in Plants, 



with Special Reference to the European Corn Borer 258 



Notes on the Pupae of the European Corn Borer, Pyrausta nubilalis 

 and the Closelj^ Related Pyrausta penitalis 387 



MozNETTE, G. F. Notes on the Bronze Apple-tree Weevil 426 



O'Kane, W. C. Liinitations in Insect Suppression 155 



Parman, D. C. Notes on Phlebotomus Species Attacking Man 211 



Peterson, A. The Morphology, Behavior and Susceptibility of the Eggs 



of Three Imported Apple Plant Lice^ 141 



Response of the Eggs of Aphis avenoi Fabr. and Aphis pomi DeS. to 

 Various Sprays, Particularly Concentrated Lime-sulfur and Sub- 

 stitutes, Season of 1918-1919 ^ 363 



Pierce, W. D. Some New Phases of the Entomology of Disease, Hygiene 



and Sanitation Brought About by the Great War 42 



RiCKER, D. A. Experiments with Poison Baits against Grasshoppers 194 



Riley, W. A. The Occurrence of Drosophila Larvae and Puparia in 



Bottled Milki 41 



A Use of Galls by the Chippewa Indians 216 



Robinson, R. H. The Beneficial Action of Lime in Lime Sulfur and 



Lead Arsenate Combination Spray 429 



Safro, V. I. The Strength of Nicotine Solutions 349 



Sanders, J. G. The Discovery of European Potato Wart Disease in 



Pennsylvania 82 



An European Scale Insect Becoming a Menace in Pennsylvania 86 



Sasscer, E. R. Important Foreign Insect Pests Collected on Imported 



Nursery Stock in 1918 133 



Severin, H. H. p. Notes on the Behavior of the Beet Leafhopper, Eutet- 



tix tenella 303 



Investigations of the Beet Leafhopper, Eutettix tenella, in California 312 



Smith, H. S. On Some Phases of Insect Control by the Biological Method 288 



Smith, R. C. Ear Worm Injuries to Corn and Resulting Losses 229 



Smith, R. H. A Preliminary Note Concerning a Serious Nematode Dis- 

 ease of Red Clover in the Northwestern States 460 



