CONTENTS OF VOLUME I. 



Officers 3 



Constitution -i 



Membership 7 



Bradley, J. C. — Proceedings of the Society — New York Meeting 21 



Proceedings of the Society — Boston Meeting 22 



Proceedings of the Society — Chicago Meeting ■ . 27 



Crosby — Notes on Chalcid Infesting Apple-seed 38 



Wheeler, Wm. M. — Polymorphism of Ants 59 



OsBORN, Herbert — The Habits of Insects as a Factor in Classification. ... 70 

 Severin, H. H. and Severin, H. C. — Anatomical and Histological Studies 

 of the Female Reproductive Organs of the American-Saw fly, Cimbex 



Americana, Leach 87 



Felt, E. P. — Some Problems in Nomenclature 102 



Hammar, a. G. — On the Nervous System of the Larva of Corydalis cornuta 



L 105 



Bradley, J. C. — A Case of Gregarious Sleeping Habits among Aculeate 



Hymenoptera 127 



Davis, J. J. — Notes on the Life History of the Leafy Dimorph of the Box- 

 elder Aphid, Chaitophorus negundinis Thos 130 



Hambleton, J. C. — The Genus Corizus, with a Review of the North and 



Middle American Species 133^ 



Lyman, H. H. — The Entomological Society of America and Its Work 152 



GiRAULT, A. A. — Further Biological Notes on the Colorado Potato Beetle, 

 Leptinotarsa decemlineata (Say), including Observations on the 



Number of Generations and Length of the Period of Oviposition 155 



GiRAULT, A. A. — A Monographic Catalogue of the Mymarid Genus Alaptus 

 Haliday with Descriptions of Three New North American Forms and of 



Alaptus Iceryae Riley from Type Material 179 



Severin, H. H. and Severin, H. C. — The Internal Organs of Reproduction 



of the Male Saw-fly, Cimbex Americana Leach 196- 



Smith, C. P. — A Preliminary Study of the Aranea? Theraphosae of California . 207 



Davis, J. J. — Studies on Aphididae 251 



Riley, W. A. — Muscle Attachment of Insects '^"" 



Needham, J. G. — Critical Notes on the Classification of the Corduliinae 



(Odonata) 273 



Howard, L. O. — A Key to the Species of Prospaltella with Table of Hosts 



and Descriptions of Four New Species 281 



Hood, J. D. — Two New vSpecies of Idolothrips 285' 



Index 291 



