INDEX. 



445 



Myrmecocystus mexicamis, honey- 

 holding individuals among, 19 ; 

 foragers bring supplies of honey 

 to them, 47 



Myrmecodia armata, its associa- 

 tion with ants, 58 



Jlj'rmecophilous insects, 68-78 



Myrmica rvginodis, period of lar- 

 val life in, 7 ; length of life of 

 males of, 9 ; origin of a nest of, 

 32 ; observations on a wounded 

 specimen of, 96 ; experiments as 

 to recognition among, 121 ; as 

 to communication among, 164, 

 348 ; illustration of terminal 

 portion of antenna of, 227 ; 

 sense-organ in tibia of, 233 ; 

 their unwillingness to face a fall, 

 245 



— scahrmodis, cowardly nature 

 of, 27 ; Platyai'thrus a guest of, 

 75 



Myrmicido', one of the three fa- 

 milies of ants, 1 ; correlation of 

 form of knot with power of 

 stinging in the, 13 



NECTAHIES, uses of, 56 

 Xests for ants, artificial, de- 

 scribed, 3, 164 ; of ants classified 

 and described, 23, &c. ; three 

 modes of formation of, sug- 

 gested, 30 ; of Lasius niger de- 

 scribed and illustrated, 42 



Neuters among ants, production 

 of different forms of, 22 



Nermann, M. de, honey ants 

 brought from Mexico by, 47 



f^CELLUS, or simple eje in 

 ^-^ ants, 10 ; absent in the work- 

 ers of some species, 11; origin 

 of, 182 

 (Ecodoma i^ejjJialotes, the Saiiba 

 ant, five kinds of individuals 

 among, 21 ; extent of nest of, 

 24 ; leaf- cutting among, 237 ; 

 intelligence of, 239 



POG 



fEcojyhylla, sting in, 13 



Organ of sense in antenna of ant , 



226 ; in tibia of Gryllus, 231 ; 



in tibia of ant, 232 

 Ormerod, Mr., as to the sense of 



hearing among wasps, 221 

 Ova of aphis described, 71 note 



PARASITES of ants, 26, 67, 74, 

 431, 433 ; of bees, 26 



Pass-word, experiments as to, 

 among ants, 108 ; supposed use 

 of, among bees and ants, 126 ; 

 experiments as to, with pup.'e, 

 1 29 ; existence of, apparently 

 disproved, 147 



Pets, domestic animals kept as, by 

 savages, 77 



Phases of life among men and 

 ants, analogy between, 91 



Pheidole megacepliala, pugnacity 

 of small workers of, 20 ; experi- 

 ment as to power of communi- 

 cation among, 180 ; sense-organ 

 in tibia of, 233 



— pallid ula, the eye in, 11 ; com- 

 munication among, 158 



— IM-oridens, its storage of grass 

 seeds, 60 



Pliora formicarnm, its attacks 



on ants, 26, 74 ; described, 432 

 Phorid« parasitic on ants, 67, 74 ; 



new genus and species of, 431 

 Pigs kept as pets by savages, 77 

 Plagiolejnsjfygma'a, the eye in, 11 

 Plants, relation of ants to, 50 ; 



their different modes of defence 



against unprofitable insects, 51; 



benefited by the action of iii 



sectivorous ants, 59 

 Plato, epigram by, quoted, 185 

 PlatyarthrusSoffmanscggii,a.o-xiest 



of the ants, 75 ; experiments 



with, 90 

 Platy2jhoraLubbocMi,67;descvihed 



434 

 Poyonomyrmex hariatus, stores 



'ant-rice,' 61 



