INDEX 



291) 



Mud-wasps (see Eiimenes dimidiati- 



pcniiis). 

 Myiophoneus temmincki, nest of, 266 

 Mylabris, feigning death, 158 

 AIy7-m€cocystits setipes, distribution, 44 ; 

 general appearance, 45 ; predaceous 

 nature, 45 ; habit of kicking back 

 earth, 46 ; division of labour, 47 ; 

 closure of nest at night, 47, 48 ; ants 

 as sanitarians, 48 ; thoughtlessness of 

 instinct, 49 ; food of ant, 49 ; store 

 their dead in nest, 50 ; sense of 

 smell, 50 ; acuteness of vision, 50, 

 51 ; erection of abdomen, 51 ; absence 

 of sympathy, 52 ; transfer of workers 

 from nest to nest, 53 ; intelligence, 

 54-57; platform at nest, 55, 56; 

 rampart round nest, 57 ; folly, 58, 

 59 ; indulgence in useless labour, 

 59 ; folly and intelligence of ants, 

 59 



NotonectidcT, predaceous habits, 169 ; 

 habit of submergence, 169; nature of 

 prey, 169; mode of swimming, 170; 

 special senses of, 171-173 ; move- 

 ments on land, 174 



Nummulitic series, 287 



Nytha faiisatis, protective coloration, 

 198 



Oiuotyinpana ohmibila, 211 (also see 



Cicada) 

 Oxen, force of instinct, 158 



Pallas's fishing eagles, tumbling in air, 



271 

 Pap! Ho, species in Hazara, 196, 197 

 Paradise flycatcher, attack on butterflies, 

 208 ; appearance of, 262, 263 ; nest 

 of, 263 ; young of, 263, 264 ; skill 

 of, 264 

 Pctaurista inoriiata (see Flying-squirrel) 

 Phidole indica, power of communication, 

 60-72 ; varieties of workers, 60 ; 

 general characters, 61 ; discovery and 

 removal of prey, 61-63 ; power to call 

 out swarm, 64 ; imperfection of com- 

 municating instinct, 64 ; reserve 

 swarms in nest, 65 ; experiments on 

 faculty of communication, 66-68 ; 

 power of scent, 69 ; each ant has a 

 distinctive scent, 69, 70 ; duties of 

 soldiers, 71 ; division of labour, 72 ; 

 soldiers defending nest, 73 ; migration, 

 73 ; variability of senses, 74, 75 

 Phosphorescent animals, 218-225 

 Platylomia hrevis, 211 (see Cicada) 

 Palisieshebraeus^ in spider's spvire, 152 ; 



mode of cooling nest, 180, 181 ; 

 resemblance to hive-bee, iSi 

 Pompilid, resemblance to C compressus, 



Preshytis schistaccus, 247, 248 

 Protective coloration, in spiders, 145, 



146 ; of butterflies, 19S-203 ; of 



moths, 203-207 



Ravens, tumbling in air, 270 

 Rooks, tumbling in air, 270 

 Ruviex hastatiiSy 17 



Sand, in mountain stream, 293-299 



Satyrus schakra, protective coloration, 

 198 



Scavenger-vulture, tumbling in air, 271 



Schists, of Ilazara, 283, 284 



Senses, special, of harvesting ants, 24- 

 31 ; of inyrniecocystits, 50, 51 ; of 

 geometrical spiders, 146-149 ; of 

 hippasa, 154, 155 ; of water-boatmen, 

 171-174 



Slieet-building spiders, nature of web, 

 150; not entangled in snare, 151 ; 

 spiders and weather, 152 ; instinct in 

 seizing prey, 152, 153; injection of 

 poison, 153, 154; senses of vision 

 and touch, 154, 155; forceof instinct, 

 156 ; feigning death, 158 ; snare pre- 

 vents evaporation, 160, 161 



Shells, mode of dispersal, 236-23S 



Siinia rhesus, 243-247 ; habits, 244, 

 245 ; instincts, 246, 247 



Snails, prey of lampyris, 223-225 



Snare, geometrical, architecture, 85-S9; 

 construction of foundation lines, 85, 

 86; of radii, 86; of hub, 87; of 

 temporary spiral, 87 ; of viscid spiral, 

 87 ; nature of first filament, 90 ; 

 symmetry of radii, 91, 92 ; radius a 

 double line, 93, 94 ; function of hub, 

 94,95 ; geometry of tempdraryspiral, 

 96, 97 ; of viscid spiral, 98-106; of 

 first turn of viscid spiral, 98 ; experi- 

 ments on viscid spiral, 99-103 ; dis- 

 appearance of temporary spiral, 108, 

 109; reversal of spiral, 110-I16; 

 potentiality of snare, 121 ; repair, 126, 

 127 ; experiments of dividing bridges, 

 12S-132; of severing radii, 132-134; 

 of dividing viscid spiral, 134, 135 ; 

 of removal of complete spiral, 136; 

 interchange of snares, 139-142; vis- 

 cidity and nnn-viscidity of lines, 142, 

 143 ; power to disintegrate rays of 

 light, 161 (also see details under 

 Spiders, geometrical) 



Sparrow, plasticity of instinct, 261 



