eaf-beetles

Chrysopa, 57

Cicads, 22, 93, 110

Classification, 122

Clearwing Moths, 62

Click-beetles, 52, 93

Clothes-moths, 62

Coccidae, 20, 110, 118

Coccinella, 113

Cockroaches, 11, 14, 15, 107, 115

Cocoons, 82

Codling Moth, 62, 99

Coleoptera, 50-6, 80, 112, 119

Collembola, 11

Complete transformation, 35, 107, 119.
_See also_ Endopterygota

Corethra, 43

Cossus, 38, 62, 82, 95

Crane-flies, 67, 70, 93, 117

Cremaster, 83

Crustacea, 7, 120

Culex, 43, 77, 86

Curculionidae, 55

Cuticle, 2, 9, 29, 37, 40, 50, 81, 87, 110

Cynipidae, 94.
_See also_ Gall-flies

Daddy-long-legs, 69-70

Darwin, C., 105

Deegener, P., 6, 114

Devonian insects, 107

Dewitz, H., 28

Digestive system, 10, 45-7

_Diplosis pyrivora_, 70

Diptera, 42, 64, 67-79, 81, 86-8, 91, 94, 107

Divergence between larva and imago, 110, 114, 121

Double-brooded Lepidoptera, 95, 100-4

Dragon-flies, 26-31, 107, 110

Drone-flies, 76

Duration of life, 34, 89, 92-3, 95

Dyticus, 51

Ecdysis, 10.
_See also_ Moult

Ectoderm, 9, 11, 47

Eggar Moths, 59, 89

Eggs, 6, 17-18, 26, 34, 65-7, 71, 90, 94-5, 97

Elateridae, 52

Endopterygota, 41, 49, 108, 112, 115-6

Ephemeroptera, 24.
_See also_ May-flies

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

Ho