INDEX 



279 



Moth, Magpie, 233 



Sallow, 209 



Spurge Hawk, 233 



Vapourer, 155, 204, 208, 232 



Winter, 155, 204, 208 



See also " Lepidoptera " 

 Mouth hooks, of blow-fly larva, 133 



of Hypoderma, 221 



of louse, 155, 156 

 Musca, 215 

 Muscles, of leg, 14 



of wing, 15, 41 

 Mutation, 167 

 Mycetophilidae, 215 

 Mymaridae, 227 



NECROPHORUS, 216 

 Necrotauliidae, 268 

 Nemouridae, 264 

 Nervous system, 24, 25 



changes during pupation, 147-8 



of Bibio larva, 128 



of butterfly, 56 



of caterpillar, 55, 60 



of dragon-fly, 42, 48 



of dragon-fly larva, 46, 48 



of muscoid larva, 135-6 

 Nervuration, 76-7, 54-5, 65 

 Nervures, 15, 36 



formation of, 68, 154 

 Neuroptera, 118, 183, 259, 260, 



261, 267 



Nycteribiidae, 165 

 Nymph, of capsid bug, 79, 80 



of dragon-fly, 45, 49-52 



of mayfly, 96 



of termite, 82, 83 



OCELLUS. See " Eye, simple " 

 Odonata, 181-2, 264 



primitive type, 267 



See also " Dragon-fly " 

 Odynerus, 238 

 Oecophylla, 242 

 Oenocyte, 21, 150 

 Oestrus, 218 



Oil-beetle. See " Meloidae " 

 Ommatidium, 9 

 Ophion, 224 

 Orchestes, 214 

 Orgyia, 204 

 Orthoptera, 178 



maternal care, 235 



primitive types, 263 



wing-development, 70 

 Orthorrhapha, 185, 269 

 Osmia, 238 



Otiorrhynchus, 205, 214 

 Ovary, 26, 27 

 Oviduct, 26, 27 



Ovipositor, 18 

 of capsid bug, 78 

 of dragon-fly, 41 

 of gall-midge, 212-3 

 of grasshopper, 18 

 of Ichneumonoidea, 221 

 of saw-fly, 125 



PAEDOGENESIS, Cecidomyidae, 147 

 Palaeodictyoptera, 263, 267 

 Palaeohemiptera, 265 

 Palaeontinidae, 268 

 Panorpidae, 253, 255 

 Paramecoptera, 267, 268 

 Parasitic insects, 155-?' 216-28 

 Parthenogenesis, aphid, 30, 36, ji-2 



Chironomus, 146 



hive-bee, 240 

 Passalidae, in 

 Perga, 237 

 Periplaneta, 70 

 Perla, 76 



Permian insects, 265-7 

 Permochorista, 267 

 Permoscarta, 266 

 Petrobius, 168-70 

 Phagocytes, 150 

 Phryganea, 231 

 Phyllodecta, no, 213 

 Phyllodromia, 70 

 Phyllopertha, no, in 

 Phyllotreta, 112 

 Phyllobius, 205 

 Phylogeny of insects, 249-70 

 Pimpla, 224 

 Pith moth, 205 

 Planipennia, 183, 260, 267 

 Plant-lice, 70 

 Planula, 245 

 Platephemera, 263 

 Platygaster, 224-5 

 Plecoptera, 76, 178-9, 263, 264-5 

 Plesiocoris, 78-80 

 Polyrachis, 242 

 Pompilidae, 227-8 

 Pontania, 210 

 Porthetria, 220 

 Predatory habits of Insects, 99-100, 



228-30 

 Proleg, abdominal, 58, 123-4, 253 



anal, of Bibio larva, 128 



of blow-fly larva, 133 



of ground-beetle larva, 101 



of Tipula larva, 130 



of wireworm, 109 

 Prosbole, 265 

 Protephemerida, 263 

 Protodonata, 264 

 Protopsychopsis, 267 

 Protorthoptera, 263 



