CONTENTS. xill 



PAGE 



Metz. Charles W. — Apterow Drosophila : .. 144 



Scott, H. — Early Stages of Paliostoma schineri ..' 140 



Brown, Annette Frances — Evolution of Colour Pattern in Lithocolletis .. .. 248 



Oaepenteb, G. H., & others— Life-history of Warble-Flies 250 



Bretsohneider, F. — Brain of Cockroach and Mealworm 250 



Grassi, B. — Migration of Larval Phylloxera 252 



Haddun, Kathleen — Mouth-parts of Glow-worm Larva 252 



Bagnall, Richard S. —New Thysanopteru 252 



Shull, A. Franklin — Behaviour and Local Distribution of Thysanoptera .. .. 252 



Shaw, H. B., & W. E. Castle — Thrips as Pollinator of Beet-flowers 253 



Cummings. Bruce F. — Mouth-parts of Anoplura 253 



Bethcne-Baker, G. T. — Clasping Organs of Insects .. .. 356 



Tsou, Y. Hsuwen — Homology of Body Set;e in Caterpillars 357 



Metz, C. W. — Chromosome Groups in Genus Drosophila 357 



Hyde, Roscoe R. — Sterility in Drosophila ampelophila 358 



Morgan, T. H. — Sex-linked Lethal Factors in Drosophila 358 



Hyde, Roscoe R. — Fertility in Drosophila - .. .. 358 



„ „ Fertility in Drosophila 359 



Morgan, T. H. — Infertility of Rudimentary Winged Females of Drosophila ampe- 

 lophila 359 



Patten, Bradley M. — Orienting Reaction of Blowfly Larva 359 



Nicholson, Ethel — Cenirifuging Spermatocyte Cells of Notonecta 360 



Roubaud, E. — Blood-sucking Muscid Larvae 361 



„ „ Myiasis and allied Diseases 361 



Kelin, D., & W. R. Thompson — Life-history of Dry inidae 362 



Thompson, W. R. —Dipterous Parasite of Larval Mycetophylid 362 



Keilin, D., & W. R. Thompson — Pipuncidids Parasitic in Homoptera 362 



Bagnall, Richard S. — New Thysanoptera .. .. 363 



Minchin, E. A. — Structure of Rat-flea 474 - 



Chinaglia, Leopoldo — Abdominal Hairs in Bombyeidie 474 



Teodoro, G. — Malpighian Tubes in Lecanium 474 



Chinaglia, Leopoldo — Abnormalities in Insects 475 



Banks, C. S. — New Malaria Mosquito 475 



Malloch, Jqhn R. — Chironomidae of Illinois 475 



Waterston, James — Bird Lice of Genus Doeophorus found on British Auks .. 475 



Clemens, W. A. — Life-histories of Species of Heptagenia 476 



Meek, C. F. U. — Mitotic Spindle in Spermatocytes of Earwig 476 



Jackson, Annie C. — Male of Indian Stick-insert 477 



Ktnloch, J. Parlane — As regards Lice 477 



Guercio, Giacomo del — Clover Pests 478 



Berlese, Antonio — Reproduction and Sex-dimorphism in Insects 572 



McIndoo. X. E. — Olfactory Sense in Honey-bee 572 



MacGillivray, Alex. D. — Immature Stages of Tenthredinoidea 573 



Wadsworth, J. T. — Life-history and Habits of Knapweed Gall-fly 573 



Hammond, L. F. — Protective Coloration of Rupee of Pier -is brassicm 573 



Cockayne, E. A. — (Jynandr amorphous Lepidoptera 573 



Duncan, F. N. — Gynandromorphs of Drosophila ampelophila 574 



Keilin, D. — Apodous Insect Larvae 074 



Bugnion, E. — Structure of Glow-worm 074 



Krogh, August — Influence of Temperature on Development of Mealworm .. .. 575 



Voinov, D. — Spermatogenesis of Mole Cricket 575 



