NORTH AMERICAN ODONATA. 



271 



Labiuml57. 172, 194, 195, 



197 

 Labium 156,171,184,193 

 Lacerata 255 

 LaDjiiia, anterior 185, 



vulvar 170, 186, 199 

 Lateralis 252. 

 Lateral lobes 193 

 Legs 161, 193, 196, 197 

 Lepida 253 

 Leptetrum 255 

 Lestes 160, 162. 189, 200, 



201, 209, 210, 21:;;, 220, 



225, 229 

 Leucorhinia 207, 224, 262 

 Libellula 162, 171, 179, 



190, 195, 202, 224, 255 

 Libellulidte 213, 219, 226 

 LibelluliDffi 207, 208, 209, 



210. 220, 223, 227, 254 

 Life, length of 190, 195, 



204 

 Linearis 253 

 Lobe, genital 186 

 Locomotion of nymphs 



202 

 Longipennis 183, 265 

 Longipes 250 

 Lydia 257, 259 



Macromia 223, 226, 250 

 Maculatus (a), 173, 182, 



227, 246 

 Malpighian tubules 178 



199 

 Mandibles 157, 171-172, 



193, 5, 7 

 Mask 195 



Maxillpe 157, 172, 193, 5, 7 

 Maxillary palp 157 

 Median cross-veins 169, 



sector 163, space 163, 



vein 163 

 Membranule 168 

 Mesepimeron 160 

 Mesepisterna 159. 197 

 Mesiufraepisternum 159 

 Mesosternum 160 

 Mesostignia 161, 180 

 Mesotbemis 195, 225, 265 

 Mesothorax 159, 197 

 Metasternum 160 

 Metastigma 161, 180 

 Metathorax 159. 197 

 Metepimeron 160 

 Metepisternum 160 

 Metinfraepisternuni 160 

 Micrathyria 204, 224, 260 

 Micromerus 212 

 Micronympha 239 

 Micropyle 187, 190 

 Mid-gut 177 

 Migratory swarms 206 

 Minutus 244 



Motor nerve endings 183 

 Moulting 195, 203 



TRANS. AM. ENT. SOC. XX. 



Muscles 171-6, 199 



Nfevius242 

 Nannothemis 224, 260 

 Nasus 156 



Nearctic Odonata 208 

 Nehaleunia 212, 220, 234 

 Neotropical Odonata 208 

 Nervous system 181-4, 



196, 202 

 Neural canal 161, 175 

 Neurocordulia 223, 252 

 Neurothemis 187 

 Nodal sector 163 

 Nodus 163 

 Nymph 154, 195-203,212, 



225 



Obsoleta 252 

 Obtrusa 263 

 Occiput 156 

 Ocelli 156, 195, 197 

 Odonata 153 

 Oesophagus 176 

 Ophiogomphus 221, 225, 



242 

 Optic ganglia 181 

 Oriental Odonata 208 

 Ornata 261 

 Orthetrum 209 

 Ortholestes 166 

 Ova 187 

 Ovaries 186 

 Oviposition 188-90 



Pachydiplax 225, 265 



Palaearctic Odonata 208 



Palp, labial 157, maxil- 

 lary 157 



Pantala 170, 209, 223, 227, 

 254 



Parasites 205 



Parvulus 242 



Penis 185 



Perithemis 224, 264 



Perlina 210-11 



Petalura 186, 212, 221 



Phylogeny 210-14 



Plagiatus 244 



Platephemera 209 



Plathemis 224, 259 



Pleura, abdominal 169, 

 198, thoracic 159-60, 

 197 



Plumbea 256, 257 



Pollutum 239 



Polynesian Odonata 208 



Posita 235 



Postcosta 163 



Postcostal space 163 



Postcubitals 169 



Postnodals 169 



Postnodal sector 169 



Posttriangular cells 165, 

 168 



Prenubila 258 



Preservation of speci- 

 mens 214 



Princeps 251 



Principal sector 163 



Procera 253 



Pronators 173-5 



Protamphibion 211 



Prothorax 158, 197, 212 



Pruinoseness 203 



Pseudopupillse 183 



Pterostigma 168 



Puella 185 



Pulchella 179, 182, 190. 

 195, 196, 202, 259 



Putrida 232 



Quadriguttata 247 

 Quadrilateral 164 

 Quadrimaculata 206, 209, 



258 

 Quad ru pi a 256 



Eamburii 204, 239, 240 

 Eearofeyes(orhead) 155 

 Receptacula seminis 186 

 Eectal glands 201, tra- 



cheal-gills 201 

 Eectangularis 231 

 Eectum 177, 201 

 Eelationships 210-14 

 Eeproductive organs 



184-8 

 Eespiration 180-1, mus- 

 cles of 176. 181 

 Eespiratory apparatus 



178-81. 199-202 

 Ehinarium 156 

 Ehinocypha 160 

 Eubicundula 262 

 Eupinsulensis 242 



Salivary glands 176 

 Saucium 235 

 Seasonal distribution 267 

 Sectors 163, 164, 169 

 Semiaquea 252 

 Semicincta 263 

 Semifasciata 258 

 Sense organs 183-4 

 Serosa 193 

 Sexual diflferences 154, 



170, 184-7 

 Sheath of penis 185 

 Short sector 164 

 Sides of thorax 159 

 Sight 183 

 Signatum 2:38 

 SimplicicoUis 195, 265 

 Size, range of 204 

 Skeleton 154-171 

 Somatochlora 207, 209, 



223, 227, 253 

 Species, number of 207-8 

 Spermatozoa Ibo 

 Spider feeding on O. 205 

 SpinosUs 245 



SEPTEMBEE, 1893 



