Epidermis, 9, 40

Eristalis, 76

Eruciform larvae, 56, 58-70, 111

Evolution, 16, 103, 105-21

Exopterygota, 41, 108, 115-6, 118

Exoskeleton, 9

Fabre, J.H., 56

Fat-body, 47

Feeding-period, 27, 32, 36, 89, 111

Feelers, 1, 4, 42, 71

Fleas, 116

Fore-gut, 47

Free pupa, 80

Gall-flies, 64-6, 94, 115

Gall-midges, 68-70, 90

Ganin, M., 66

Gastrophilus equi, 73-4

Gegenbaur, C., 120

Geological history, 106-8, 123

Geometridae, 59

Gills, 24, 27, 32, 78, 87, 114, 120

Glossinia, 91

Glow-worm, 50, 113

Gnats, 43, 77, 86

Goat Moth, 38, 62, 82, 95

Gonin, J., 38, 41

Grasshoppers, 11, 14, 15

Grimm, O., 90

Ground-beetles, 52, 112

Growth, 9

Grub, 63-70.
  See also Caterpillar, Larva

Hairs, 59, 82, 98

Hammond, A.R., 43, 77, 87

Handlirsch, A., 106

Harvey, William, 7

Hatchett-Jackson, W., 83

Hawk Moths, 60

Heart, 45

Helodes, 50

Hemerobius, 57

Hemimetabola, 35

Hemiptera, 17, 110

Henneguy, L.F., 45, 48

Heymons, R., 6, 11, 119

Hibernation. See Wintering stages

Hind-gut, 47

Hippoboscidae, 91

Histogenesis and Histolysis, 48

Holometabola, 35

House-fly, 67, 71, 73

Hover-flies, 74-6

Hymenoptera, 58, 64, 94, 107

Hypermetamorphosis, 56

Hypoderma bovis, 73-5

Hypodermis, 9

Ichneumon-flies, 64, 66, 82

Imaginal buds or discs, 34-48, 114, 117-8

Imago, 24, 34, 114

Instar, 13, 33, 56, 117-9

Jaws of imago and larva, 2, 4, 5, 32, 42, 89

Jurassic insects, 107

Kahle, W., 90

Kellogg, V.L., 108

Kowalevsky, A., 46

Labium, 2, 27

Lacewing-flies, 57, 107

Ladybirds, 113

Lameere, A., 111

Lampyris, 113

Larva, 4, 22, 26-7, 32, 49-79, 110-15

Larval reproduction, 90

Lasiocampidae, 59, 89

Latter, O.H., 28

Leaf-beetles, 53, 83, 92-3, 113

Lebia scapularis, 119

Lepidoptera, 1, 36, 38, 49, 58, 81, 95-104, 107

Libellulidae, 27

Lice, 116