CONTENTS OF VOLUME II. 



PAGE 



Proceedings of the Entomological Society of America 1 



Resolutions on the Death of Dr. Wm. H. Ashmead 6 



Resolutions on the Death of Dr. James Fletcher 7 



Report of the Committee on Nomenclature S 



CoMSTocK, J. H. — A Note on the Habits of the Wall-bee Chali- 



codoma Muraria 9 



Petrunkevitch, a. — Contributions to Our Knowledge of the 



Anatomy and Relationships of Spiders 11 



GiRAULT, A. Arsene — A Monographic Catalogue of the Mymarid 

 Genus Camptoptera Foerster, with Description of One New 

 North American Form 22 



Davis, John J. — Studies on Aphididae II . . . .■ 30 



Hilton, William A. — The Tracheal Supply in the Central 



Nervous System of the Larva of Corydalis Comuta 46 



Nelson, Jas. A. — Evolution and Adaptation in the Palpus of 



Male Spiders 60 



Webster, F. M. — Investigations of Toxoptera Graminum and 



Its Parasites 67 



Hayhurst, Paul — Observations on a Gall Aphid (Aphis 



Atriplicis L.) 88 



Patch, Edith M. — -Homologies of the Wing Veins of the Aphi- 

 didae, Psyllidae, Aleurodidae, and Coccidae 101 



Hine, James S. — Robberflies of the Genus Asilus 136 



Chamberlin, Ralph V. — Some Records of North American 



Geophilidae and Lithobiidae, with Description of New Species 175 



Davis, John J. — Two New Genera and Species of Aphididae. . . . 196 



Poulton, Prof. E. B. — Mimicry in the Butterflies of North 



America 203 



TowNSEND, Chas. H. T. — Descriptions of New Genera and 



Species of Tachinidae 243 



CocKERELL, T. D. A. — Fossil Insects from Florissant 251 



McGillivray, a. D. — A Synopsis of the North American Species 



of Scolioneurinae 259 



Hambleton, J. C. — Life History of Corizus Lateralis Say ^272 



