INDEX 



299 



Mud-wasps (see Eumenes dimidiati- 



pennis}. 



Myiophoneus temmincki, nest of, 266 

 Mylabris, feigning death, 158 

 Myrmecocystus 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 



Notonectidce, 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 pa> isatis, protective coloration, 

 198 



Oncotympana obnubila, 21 1 (also see 



Cicada) 

 Oxen, force of instinct, 158 



Pallas's fishing eagles, tumbling in air, 



271 



Papilio, 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 



Petaurista inornata (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 brevis, 21 1 (see Cicada) 

 Polities h?braeu$i in spider's snare, I $3 j 



mode of cooling nest, 180, 181 ; 

 resemblance to hive-bee, 181 

 Pompilid, resemblance to C. compressus, 



183 



Presbytts schistaceus, 247, 248 

 Protective coloration, in spiders, 145, 



146 ; of butterflies, 198-203 ; of 



moths, 203-207 



Ravens, tumbling in air, 270 

 Rooks, tumbling in air, 270 

 Rumex hastatus, 17 



Sand, in mountain stream, 293-299 



Satyrus schakra, protective coloration, 

 198 



Scavenger- vulture, tumbling in air, 271 



Schists, of Hazara, 283, 284 



Senses, special, of harvesting ants, 24- 

 31 ; of myrmecocystus, 50, 51 ; of 

 geometrical spiders, 146-149 ; of 

 hippasa, 154, 155; of water-boatmen, 

 171-174 



Sheet-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; force of instinct, 

 156 ; feigning death, 158 ; snare pre- 

 vents evaporation, 160, 161 



Shells, mode of dispersal, 236-238 



Simia rhesus > 243-247 ; habits, 244, 

 245 ; instincts, 246, 247 



Snails, prey of lampyris, 223-225 



Snare, geometrical, architecture, 85-89 ; 

 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 temporary spiral, 

 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, Iio-n6; 

 potentiality of snare, 121 ; repair, 126, 

 127 ; experiments of dividing bridges, 

 128-132; 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 non-viscidity of lines, 142, 

 143 ; power to disintegrate rays of 

 light, 161 (also see details under 

 Spiders, geometrical) 



Sparrow, plasticity of instinct, tf\ 



