CONTENTS OF VOLUME XII. 



PAGE 



Van Dyke, Edwin C. — The Distribution of Insects in Western North America. . 1 

 Brues, C. T. — A New Chalcid-fly Parasitic on the Australian Bull-dog Ant. . 13 

 Alexander, C. P. — Notes on the Crane-flies of the Hawaiian Islands 



(Tipulidae Diptera) 25 



Fall, H. C. — The Calif ornian Species of Malthodes 31 



Herrick, Glenn W. and Detweiler, John D. — Notes on the Repugnatorial 



Glands of Certain Notodonid Caterpillars 44 



MosHER, Edna — Notes on the Immature Stages of the Deltometopus rufipes 



Mels. (Coleoptera Eucnemidae) 49 



Aldrich, J. M. — Proceedings of the Baltim^ore Meeting 57 



DiETZ, W. G. — The Streptocera Group of the Dipterous Genus Tipula, 



Linneaus 85 



Claasen, p. W. — Life-History and Biological Notes on Chlaenius Impuncti- 



f rons Say 95 



TTIVTI7 Tac c; — Robberflies of the Genus Erax 103 



J vii A.% ' Some Chalcid Wasps Reared from Cecidomyid Galls 159 



? M IK, F. — The Progress of Scolia manilae Ashm 171 



V-Hi.F' KR. W".' M M. — The Ants of the Genus Metapone -. . 173 



RuCK.1- ., ff -Notes on the Male Genital System in Certain Lepidoptera..l92 



Welch, Paul S. — The Aquatic Adaptations of Pyrausta penitalis Grt. 



(Lepidoptera) 213 



Fracker, S. B. — Chariesterus and its Neotropical Relatives (Coreidae 



Heteroptera) 227 



Sanders, J. G. and DeLong, D. M. — Eight New Jassids from the Eastern 



United States 231 



Chamberlin, Ralph V. — New Western Spiders 239 



Walker, E. M. — The Terminal Abdominal Structures of Orthopteroid 



Insects: A Phylogenetic Study 267 



Alexander, C. P. — Undescribed Species of Japanese Crane-flies 327 



Braun, Annette F. — Wing Structure of Lepidoptera and the Phylogenetic 



and Taxonomic Value of Certain Persistent Trichopterous Characters. . . .349 

 Dickerson, E. L. and Weiss, Harry B. — The Life-History and Early Stages 



of Platymetopius hyalinua Osb., a Japanese Leaf-hopper in New Jersey. . .369 

 Plath, O. E. — The Prevalence of Phormia azurea Fallen (Larva Parasitic on 

 Nestling Birds) in the Puget Sound Region and Data on Two Unde- 

 scribed Flies of Similar Habit 373 



Townsend, C. H. T. — Description of the New Species of Phormia 379 



Aldrich, J. M. — Description of a New Species of Hylemyia 380 



King, J. L.— Notes on the Biology of the Carabid Genera Brachynus, 



Galerita, and Chlaenius 382 



