116 
Pol 
Pcison 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 
Pouera contracta, the eye in, 11 
Poneride, one of the three families 
of ants, 1; form of knot in, 13; 
stridulating apparatus in, 230 
Primulaceez, evolution of colour 
in, 309 
Protective mimicry, 66 
Pupz 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 
UEEN ants, longevity of, 9, 
41; their wings, 12; several 
in anest, 19; reluctance of ants 
toadopt a new, 32; never pro- 
duced from workers’ eggs, 36; 
seldom produced in captivity, 
40; treatment of a dead, 108 
Queen bees, limited nature of de- 
votion of subjects to, 287 
PRANONCULA CEA, correla- 
tion of colour with speciali- 
sation of form in, 308 
Recognition of friends by ants, 
experiments on, 108, &c., 119, 
INDEX, 
SIE 
&c.; after long separation, 123, 
233, 333 ; means of, 125 ; among 
bees, 126; experiments as to, 
with pupz,129-147 ; as to sister 
ants brought up separately, 147; 
proved to be communal, not per- 
sonal, 152 
Relations, behaviour of ants to, 92 
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 
At FARGEAU, Lepeletier de, 
LO on the origin of ants’ nests, 
31; on the benevolence of ants, 
94; as to hearing among insects, 
221 
Satiba ant, see Weodoma 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, Averyates discovered by, 
86 
Secretion of aphis retained till re- 
quired by ants, 69; of Claviger 
and Dinarda as food for aunts, 
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 deiermined by treat- 
ment, 40, 41 
Sie!.old, von. on sense-organs in 
