INDEX 



131 



Follicular cells, 97 

 Food requirements, 69 

 Forficula, 44, 1 1 5 



Galleria, 50, 84 

 Gasterophilus, 37, 76 

 Geotaxis, 119 

 Geotrupes, 121 

 G err is, 85 



Gestalt theory, 127 

 Gills, blood, 25 



physical, 24 



rectal, 25 



tracheal, 24, 66 

 Glands, dermal, 4 



labial, 45, 55 



moulting, 4, 58 



silk, 46, 67 

 Glial cells, 113 

 Glossina, 44, 49, 51, 70, 104 

 Glow-worm, 82 



GOLDSCHMIDT, 92, 94 

 GRABER, 18 

 GRAHAM, 15 



Granular leucocytes, 33 

 Group effect, 93 

 Growth, 76, 83 



curves, 85 



ratios, 83 

 Grylloblatta, 74 

 Gynandromorphs, 92 

 Gyrinidae, 118 



Habrobracon, 80 



HAECKEL, 1 



Haemocytes, 33, 66 

 Haemoglobin, 35 

 Haemonia, 24 

 Halteres, 111, 120 

 Hatching, 10 



spines, 10 

 Healing of wounds, 34, 90 

 Hearing, 120 

 Heart, 27 



nerve supply to, 30 

 Heart-beat, control of, 30 



effect of carbon dioxide on, 30 



reversal of, 28 



temperature coefficient of, 30 

 Hermaphrodites, 105 

 Heteromorphous regeneration, 91 



Hibernation, 73, 94 

 Hind-gut, 65 

 Histogenesis, 89 

 Histolysis, 89 

 Honey-dew, 52 



stopper, 42 

 Hormones and growth, 86 



in metamorphosis, 87 



in moulting, 86 



and pigment movements, 81 



and sex determination, 92 

 Humidity sense, 123 

 Hyalophora, 89, 102 



(and see Samia) 

 Hydrophilus, 18, 23 

 Hydrophobe hairs, 5 

 Hydrostatic organs, 25 

 Hylemyia, 104 

 Hypnosis, 116 



leery a, 105 



Image perception, 124 

 Imaginal discs, 87 

 Immunity, 35 

 Impregnation, 99 

 Insectorubin, 57, 80 

 Instinct, 128 

 Intersexes, 92 

 Interventricular valves, 28 

 Iridescence, 11 



Johnston's organ, 119 

 Juvenile hormone, 88, 102 



Keratin, 2, 48 

 Kinesis, 116 

 Klinokinesis, 116 

 Klinotaxis, 116 

 kopec, 86 

 kowalevsky, 55 



KROGH, 16 



Kynurenine, 57, 59 



Lasiocampidae, 122 

 Lasioderma, 71 

 Lebia, 67 

 Lepisma, 56, 63 

 Leptinotarsa 79, 103 

 Light production, 81 

 Light reactions, 117 

 Light-compass orientation, 118 



