CONTENTS OF THIS NUMBER. 



Nelson, Jas. A. — The Segmentation of the Abdomen 



of the Honey Bee (Apis mellifica L.) i 



Claassen, p. W. — Observations on the Life History 



and Biology of Agromyza laterella Zetterstedt . . . 9 

 Glaser, R. W. — A Systematic Study of the Organisms 



Distributed under the Name of Coccobacillus 



acridiorum D'Herelle 19 



Frison, Theo. H. — Additional Notes on the Life 



History of Bombus auricomus Robt. 43 



Ainslee, Geo. C. — Contributions to a Knowledge of 



the Crambinse of North America. 1 51 



Aldrich, J. M. — Seasonal and Climatic Variations in 



Cerodonta 63 



Cameron, A. E. — Life History of the Leaf Eating 



Crane-Fly (Cylindrotomas splendens Doane) 67 



Garnett, Richard T. — Notes on the Genus Buprestis 



Linne in California 90 



Fulton, B. B. — Observations on the Life History 



and Habits of Pilophorus walshii Uhler 93 



Campos, Francisco — Algunos Casos Teratologicos 



Observados en Los Artropodos 9? 



Aldrich, J. M. — Proceedings of Pittsburgh Meeting. 99 



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Annals, Vol. IV, Part 4, each 1.50 



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