Myrmecocystus mexicanus, honey- holding individuals among, 19; foragers bring supplies of honey to them, 47
Myrmecodia armata, its associa- tion with ants, 58 Myrmecophilous insects, 68-78 Myrmica ruginodis, 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
scabrinodis, cowardly nature of, 27; Platyarthrus a guest of,
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 pupæ, 129; existence of, apparently disproved, 147
Pets, domestic animals kept as, by savages, 77
Phases of life among men and
ants, analogy between, 91 Pheidole megacephala, pugnacity of small workers of, 20; experi- ment as to power of communi- cation among, 180; sense-organ in tibia of, 233
— pallidula, the eye in, 11; com- munication among, 158
- providens, its storage of grass seeds, 60
Phora formicarum, its attacks on ants, 26, 74; described, 432 Phorida parasitic on ants, 67, 74;
new genus and species of, 431 Pigs kept as pets by savages, 77 Plagiolepis pygmæa, the eye in, 11 Plants, relation of ants to, 50; their different modes of defence against unprofitable insects, 51 benefited by the action of in sectivorous ants, 59
Plato, epigram by, quoted, 185 Platyarthrus Hoffmanseggii, aguest of the ants, 75; experiments with, 90
Platyphora Lubbockii,67; described 434 Pogonomyrmex barbatus, stores 'ant-rice,' 61
Prison ejected by Formica rufa, 15: Polistes, robbery among, 286; P. gallica, a specimen of, kept for nine months, 315 Polyergus rufescens, the eye in, 11;
its mode of combat, 18; indi- vidual courage of, 27; males produced from eggs laid by workers among, 39, 45; greatly dependent on its slaves, 80, 83; slave-making expedition of, de- scribed, 81; degrading effect of slave-holding on, 89; imprisoned friends and strangers equally neglected, 105; power of com- munication among, 158, 180 Polygonum amphibium, glandular hairs absent from specimens growing in water, 56 Ponera contracta, the eye in, 11 Ponerida, one of the three families
of ants, 1; form of knot in, 13; stridulating apparatus in, 230 Primulacea, evolution of colour in, 309
Protective mimicry, 66
Pupe of ants, 7; experimented on as to power of recognition among ants, 129
Python said to have been de- stroyed by the Driver ants, 64
&c.; after long separation, 123, 233, 333; means of, 125; among bees, 126; experiments as to, with pupæ,129-147; as to sister ants brought up separately, 147; proved to be communal, not per sonal, 152
Relations, behaviour of ants to, 93 Retrogression of organs: of sting, 14; of wings, 15; of eyes. 75 Roads made by ants, 25 Robbery among bees, 285 Rufescent ants on a slave-making expedition, 81
T. FARGEAU, Lepeletier de, on the origin of ants' nests, 31; on the benevolence of ants, 94; as to hearing among insects,
221 Saüba ant, see Ecodoma cephalotes Sauvages, Abbé Boisier de, on the connection between ants and aphides, 68
Savage, Rev. T. S., On the Habits of Driver Ants,' quoted, 20, 63,
64 Scavengers, some ant-guests may serve as, 75
Scent, power among ants of track- ing by, 124, 171; experiments with different kinds of, 233; importance of, to ants, 258 Schenk, Anergates discovered by,
86 Secretion of aphis retained till re-
quired by ants, 69; of Claviger and Dinarda as food for ants, 75, 76
Seeds of violet collected by ants,
26; stored by ants, 60; and prevented from sprouting, 61 Senses of ants, 182; organs of, 226, 232
Sentinels among bees, 288 Sex of eggs determined by treat- ment, 40, 41
Siebold, von, on sense-organs in
Gryllus, 231; on robbery among Polistes, 286
Sight, how far ants are guided by, 251, 258, 266, 270 Signals given by ants, 158 Slave-holding, structural changes induced by, 82; degradation caused by, 89
Slave-making ants, 18; expedition of, 81
Slavery among ants, origin of, 79; degrading tendency of, 82-89 Smell of Myrmecina possibly pro- tective, 17; on recognition among ants by, 127; sense of, among ants, 233; the probable means of recognition among bees, 281; sense of, keen among bees, 288
Snake killed by Driver ants, 64 Soldiers among ants, 20; those of Saüba do not fight, 22; their origin, 22
Solenopsis fugax, the eye in, 11;
the enemy of its hosts, 78 Solomon on the foresight of the ant, 59, 60
Sound, apparent insensibility of ants to, 222; possible existence of, beyond human auditory range, 223, 233; how produced by Mutilla, 229; apparent in- sensibility of bees to, 290 Specialisation of form in flowers correlated with colour, 308 Spectrum, experiments as to per- ception of, by ants, 198 Spiders, their intelligence in es- caping the Ecitons, 66; mimick- ing an's, 66
Spiracles of ant, position of, 12, 14 Stenamma Woodwardii, the eye in,
11; found exclusively in nests of Formica, 78 Stethoscope-like organs in antenna of ant, 228
Sting in ants, possible correlation
of, with form of knot, 13; pro- bable common origin of, in ants,
behaviour of 3, 315 Tapinoma, length of period of larval life in, 7
- erraticum, the eye in, 11; heir agility, 24; Hetarius in nests of, 77
Teazle, possible uses of leaf-cup in, 52
Tetramorium cæspitum, the eye in, 11; feigns death as a defence, 17; alleged greediness of, 27; enslaved by Strongylognathus, 84; entire dependence of Aner. gates upon, 85
Texas, harvesting ants in, 61 Thiasophila angulata in ants' nests, 77
Thorax of ant described, 12 Tibia of Gryllus, sense organ in, 231; of Lasius, 232; of Locus- tidæ, 233 Tomognathus sublævis, only workers of, known, 87 note Tracks of ants illustrated, 251-257 Tuning-forks, experiments with,
Tunnels formed by ants, 25 Tyndall, Professor, experiment
« EelmineJätka » |