CONTENTS. XV 



I'AGB 



Speiser, P. — Streblidse 197 



Mead, C. E. — Enemy of the Colorado Potato Beetle .. 197 



Mayer, A. G. — Mating in Moth* 197 



Merrifield, F., & others — Colour-Variation in Pupas 197 



Emery, C.—Food of Ants 198 



Dawson, Charles, & S. A. Woodhead — Hexagonal Structure in Cooling Beeswax 198 



Yung, E. — Census of an Ant-hill 318 



Reichenbach, H. — Ants in Artificial Nests 319 



Plateau, F. — Choice of Colours by Insects .. 319 



„ „ Vision of Anthidium manicatum L 319 



Chapman, F. — Hexagonal Structure of Beeswax 319 



Paulcke, W. — Development of Drones 319 



Vayssiere, A., &h. Bordas — New Psychid 320 



Imhof, O. E. — Ocelli in Tipulidse .. .. 320 



Montgomery, T. H.— Genital Organs of Zaitha 320 



Serre, P. — American " Kissing-Bug " .. .. 320 



Wahlgren, Einar — Apterygogenea from South Russia 321 



Willem, Victor — Structure of Collembola 321 



Silvestri, Filippo — South American Insects 321 



Deegener, P. — Succession of Mouth-parts in Hydrophilus 321 



Brandicourt, V. — Protective Coloration 322 



Walton, L. B. — Based Segments of Insect's Leg 455 



Nenukow, D. — Influence of Light on Coloration and Development 456 



Nuttall, G. H. F. — Role of Insects in Spread of Disease 456 



Huber, J. Ch. — Clinical Entomology 456 



Bordas, L. — " Cilia" in Intestine of Insects 456 



Montgomery, T. H. — Structure of Nucleolus in Insect Hypodermic Cells .. .. 456 



Michaeli8, G. — Copulatory Apparatus in Drone 457 



Zander, E. — Male Genital Appendages in Hymenopter a 457 



Emery, C. — Thorax of Ants 457 



Leonardi, G. — Mites and Insects 457 



Grote, A. Radoliffe — Genealogical Tree, of Butterflies 457 



Rabes, Otto — Egg-formation in Rhizotrogus solstitialis 458 



Bordas, L. — Male Genitalia in Coleoptera 458 



Kellogg, Vernon L. — Mouth-Parts of Nematocera 458 



Deegener, Paul — Development of Hydrophilus 576 



Lagerheim, G. v. — Fungus-collecting Ants .. 577 



Thiele, R. — Life-history of Plant-lice 577 



Paulcke, Wilhelm — Parthenogenetic Origin of Drones 577 



Gruner, Max — "Cuckoo-spit" 577 



Stephens, J. W. W., & S. R. Christophers — Mosquitos and Malaria 578 



Bordas, L. — Alimentary Tract in Br achytrupes a chatinus 578 



Boas, J. E. V. — Parental Care in a Beetle 578 



Koehler, F. — Plumules of Lycsena 578 



Kellogg, Vernon L. — Blepharocera capitata Loew 579 



„ „ New Maritime Fly 579 



Handlirsch, A. — Sperm Destruction in Hemiptera 579 



Absolon, K. — Collembola from Caves 580 



Wahlgren. Einar — Arctic Collembola . . . . 580 



Absolon, Karl — New Collembola 580 



Prowazek, S. — Structure and Development of Collembola 580 



Kochi, Chu.jiro — Middle Ocellus of Insects 666 



Reh, L. — Ecdysis in Aspidiotus perniciosus 667 



Brues — Balloon-like Metatarsi .. .. 667 



Wheeler, W. M. — Female Eciton 667 



Mayer, A. G. — Mating in Moths 067 



B. Myriopoda. 



Verhoeff, Carl — Fauna of European Caves 46 



Rothenbuhler, H. — Swiss Myriopods 46 



Verhoeff, Carl — Palsearctic Myriopoda 46 



Verhoeff, C. W. — Male Dimorphism in Diplopoda 198 



