mDKX. 



44A 



XTR 



Myrmscocystut mexi<!anv,s, honey- 

 holding iudividuals among, 19 ; 

 foragers bring supplies of honey 

 to them, 47 



Vyrinecodia arrnata, its associa- 

 tion with ants, 58 



Myrmecophilous insects, 68- 78 



Myrviica mginodis, 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, 1 ai ; 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 



— scahrinodis, cowardly nature 

 of, 27 ; Platijarthnis a guest of, 

 75 



Wyi'ndcidts, one of the three fa- 

 milies of ants, 1 ; correlation of 

 form of knot with power of 

 stilting in the, 13 



NECTARIES, uses of, 56 

 Nests for ants, artificial, de- 

 scribed, 3, 164 ; of ants classified 

 and described, 23, &o. ; three 

 modes of formation, of, sug- 

 gested, 30 ; of Lasius niger de- 

 scribed and illustrated, 42 



S'euters among ants, production 

 of different forms of, 22 



Normann, M. de, honey ants 

 brought from Mexico by, 47 



f\CELf US, or simple eye in 

 '^ ants, 10; absent in the work- 

 ers of some species, 1 1 ; origin 

 of, 182 

 iWcc' ioma pcphalates, the Saiiba 

 ant, five kinds of individuals 

 among, 21 ; extent of nest of, 

 24; leaf-cutting among, 237; 

 intelligence of, 239 



POG 



(Ecophylla, sting in, 13 



Organ of sense in antenna of ant, 



226 ; in tibia of Grylhui, 231 ; 



in tibia of ant, 232 

 Orraerod, 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 pnpss, 

 129; existence of, apparently 

 disproved, 147 



Pets, domestic animals kept as, by 

 savages, 77 



Phases of life among men and 

 ants, analogy between, 91 



PheidoU megaeephala, pugnacity 

 of small workers of, 20 ; experi- 

 ment as to power of communi- 

 cation among, 180 ; sense-organ 

 in tibia of, 233 



— paUidida, the eye in, 11 ; com- 

 munication among, 168 



— promdens, its sorage of grass 

 seeds, 60 



Phora formicarixm, its attacks 



on ants, 26, 74 ; described, 432 

 Phoridse parasitic on ants, 67, 74 ; 



n^w genus and species of, 431 

 Pigs kept as pets by savages, 77 

 Plagioiej>is pygmeea, the eye in, 11 

 Plants, relation of ants to, 60 ; 



their different modes of defence 



against unprofitable insects, 51^ 



benefited by the action of in 



sectlvorous ants, 59 

 Plato, epigram by, quoted, 185 

 Platya/rtlwws ffoffmanseggii, a guest 



of the ants, 75; experiment! 



with, 90 

 PlatyphoralAibboclmjnl; described 



434 

 Pogonomyrmex tariatus, storei 



'ant-rice,' 61 



