II 



INDEX. 



Page. 



Macromia illinoiensis 252 



taeniolata 251 



Malformed imagos 222 



Mandibles 196 



Mask 194 



Maxillae 194 



Migration 188,216 



Mites 210,224 



Mouth parts 193 



Nasijeschna pentacantha 251 



Nehalennia irene 227,259 



Nematodes as enemies of nymphs 210 



Notonecta 204,210 



Nymphs as enemies of nymphs 209 



Nymphs as fish eaters 204 



Nymphs as fish food 225 



Nymph-skin cotmts 190 



Odonates as mosquito destroyers 220 



(Bdogonium 211 



Ophiogomphus morrisoni 223 



severus : 222 



Pachydiplax longipennis 187, 190, 233, 254 



Pantala flavescens 190, 205, 252 



hymenaea 252 



Parasitic flies as enemies of imagos 224 



Parasitic flies as enemies of nymphs 210 



Parasitic mites as enemies of imagos 224 



Parasitic mites as enemies of nymphs 210 



Peltodyes 202 



Periodic eating 217 



Periodicity 188 



Perithemis domitia 190, 192, 253 



Philotria 187 



Pitcher plants as enemies of imagos 225 



Plathemis lydia 187,190,192,214,233,243,255 



Page. 



Pneumonoeces variegatus 225 



Polynema ovulorum 210, 260 



Ponds, series D 186, 187 



Preparation of pond for stocking 233 



Promachus 225 



Protective instinct 191 



Pruinose 193 



Ranatra 210 



Rearing nymphs 238 



Reptiles as enemies of nymphs 211 



Robber flies as enemies of imagos 224 



Simulitun meridionale 221 



pecuarum 221 



vittattun 203 



Size of prey 216 



Source of food supply 216 



Spiders as enemies of imagos 2 24 



Stegomyia scutellaris 209, 220 



Stock material 234 



Stocking the fishpond 232 



Sundew as enemy of imagos 225 



Sympetrum corruptum 190, 192, 254 



rubicundulum 190, 238, 253 



Telephlebia godeff royi 221 



Teneral 193 



Thrips 218 



Tramea lacerata 190, 233, 252 



onusta 253 



Tsetse fly eaten by odonates 222 



Vorticellids as enemies of nymphs 211 



Water scorpions as enemies of nymphs 210 



Weather 189 



Zaitha 210 



