Birth, 18, 91

Blatta orientalis, 15

Blister-beetles, 56

Blowfly or Bluebottle, 43, 44, 46, 67, 71-3, 93, 114

Boerner, C., 32, 120

Bot-flies, 73-4, 89, 91

Brain, 44

Brauer, F., 6, 52, 56, 67, 109

Bristle-tails, 11

Brongniart, C., 106

Butterflies, 1, 83, 95-6, 114

Cabbage-butterflies, 39, 41, 85, 100-1

Cabbage-fly, 73

Caddis-flies, 62-3, 86, 117

Cainozoic insects, 107

Calliphora, 43.
  See also Blowfly

Campodeiform larvae, 52, 56, 111

Carabidae, 52

Carboniferous insects, 107

Carpocapsa pomonella, 99-100

Carrion-beetles, 50

Caterpillar, 4, 36, 49, 58-62, 95-101, 109, 114

Cecidomyidae, 68-70, 90

Cerambycidae, 55

Cercopods, 12, 15

Chafers, 52

Chapman, T.A., 81, 84

Chironomus, 43, 77, 87, 91

Chloeon, 33

Chrysalis, 82.
  See also Pupa

Chrysomelidae, 53.
  See also Leaf-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