INDEX. 448 
INS 
182; their hearing, 221; pos- 
sibly possess senses inconceiva- 
ble to ourselves, 225 
{nsensible ants, experiments with, 
99-108 
[Intelligence among auts, 181, 236; 
experiments as to, 240 
Intoxicated ants, experiments on, 
111; tabular view of experi- 
ments, 118; experiments re- 
ferred to, 128 
ERNER on floral defences, 52 ; 
on the uses of nectaries, 56 
Knot in ants, specific characters 
offered by form of, 13 
Kirby and Spence, Messrs., as to 
power of communication among 
ants, 156 ; on the power of sound 
in Mutilla, 229 
I aes division of, among 
i ants, 23, 44; experiments as 
to economising, 240; tabular 
view of experiments on, 324-332 
Landois, on the sound emitted by 
Mutilla, 229; on stridulating ap- 
paratus in ants, 230 
Laagstroth, Dr., as to recognition 
by smell among bees, 281; on 
their recklessness, 285 
Larve of ants described, 6; of 
stranger nests carefully tended, 
129 
Lasiusbrunneus prefers the aphides 
of the bark of trees, 68 
— flavus, period of larval life in, 
7; the eye in, 11; will not 
adopt a strange queen, 32 ; mites 
in the nest of, 67; keeps flocks 
of the root-feeding aphis, 68 ; 
keeps four or five species of 
aphis in its nests, 73; Platy- 
arthrus a guest of, 75, 90; they 
have arrived at the ‘pastoral 
stage’ of progress, 91; their 
behaviour to a dead queen, 108; 
to chloroformed friends and 
strangers, 108-111; to intoxi- 
LEP 
cated friends and strangers, 111; 
their treatment of strangers, 
123; perception of colour among, 
190, 193, 195; experiments as 
to sense of hearing among, 223 ; 
stridulating apparatus in, 231; 
structure in tibia of, 232; want 
of ingenuity among, 248 ; earth- 
works constructed by, 249; ex- 
periments with, as to power of 
communication, 365; as to co- 
operation, 372; new species of 
mite found in nests of, 429 
Lasius niger, workers among, 19; 
fed by aphides, 25; eggs laid 
by workers among, 37; longe- 
vity of, 42; typical nest of, illus- 
trated, 42; and described, 44; 
they carry seeds of violet into 
their nests, 59; their choice 
among aphides, 68; Platy- 
arthrus a guest of, 75; Het@rius 
found in nests of, 77; experi- 
ments as to Claviger in nests of, 
90; observations on a wounded 
worker among, 95; experiments 
with buried individuals of, 102; 
with pupz as to recognition 
among, 131; as to power of 
communication among, 160, 163, 
172, 175, 356-362, 377; as to 
perception of colour among, 191, 
201; as to their intelligence, 
240; their want of ingenuity, 
242, 246; as to scent, 258; as 
to sense of direction among, 
260; Phora formicarum para- 
sitic on, 433 
— fuliginosus, the eye in, 11; 
stridulating apparatus in, 230 
Latreille quoted as to compassion 
shown by ants, 94 
Leaf-cutting ants, 57 
Legs of ants described, 12 
Leptothsrax acervorum, Platy- 
arthrus a guest of, 75; T6émo- 
gnathus in nests of, 87 note 
— muscorum, Tomognathus in 
nests of, 87 note 
