INDEX. 43¢ 
CHE 
Chenniwm, rarely more than one 
specimen of, in an ants’ nest, 78 
Christ, M., on the length of life of 
queen ants, 9; on ant roads, 25 
Chrome alum, experiments as to 
ant vision with, 217 
Chromium chloride, experiments 
with, 217 
Claparéde, M, as to insect-vision, 
183 
Clark, Rev. Hamlet, as to an ant- 
tunnel in 8. America, 25 
Claviger,a blind beetle, a guest 
in ants’ nests, 75, 76; experi- 
ments with, by M. Lespés, 90 
Cleanliness of ants, 29 
Coccida, their use to ants, 68 
Cocoons spun by some larve of 
an's, 7 
Colobopsis truncata and C. fusipes, 
two forms of the same species, 
20 
Colour-sense of ants, 186, &c.; of 
bees, 291, &c.; of wasps, 316; 
less developed among wasps 
than bees, 321 
Colours of flowers, evolution of, 
308 
Communication, power of, among 
ants, 153, &c.; among bees, 
156; experiments as to, with 
ants, 160, 344, 376; with bees, 
276, 401; with wasps, 311, 415 
Communities of ants, 24 ; power 
of mutual recognition among 
members of, 119, 333 
Compassion among ants, instances 
of, 106, 108 ; absence of, among 
bees, 286 
Co-operation, experiments as to, 
among ants, 365-376 
Correlation of form of knot with 
stinging power in ants, 13; of 
colour in flowers with specialisa- 
tion of form, 308 
Courage of an's, 27; of wasps, 
314 
Crematogaster lineolata, adoption 
of a queen by, 34 
DUI 
Crematogaster scutellaris, their 
neglect of friends in trouble, 
98; experiments as to percep- 
tion of colour among, 192 
— sordidula, threatening attitude 
of, 16 
Cross-fertilisation effected by in- 
sects, 50 
RP eee limits of vision in, 
219 
Darkness, education of -young 
auts conducted in, 5; effect of, 
on the eyes of Platyarthrus and 
Beckia, 75 
Darwin, on the sound produced 
by Mutilla, 229 
— Francis, on the use of the leaf- 
cups of teazle, 52 
Dead, treatment of the, among 
bees, 287 
Defences of flowers against un- 
bidden guests, 52-7 
Degradation of Strongyloguathus, 
84; caused by slaveholding, 89 
Dewitz, Dr., on the non-develop- 
ment of the sting in the For- 
micide, 14; on eggs laid by 
fertile workers, 36, 40 
Dinarda dentata in ants’ nests, 
16, 7 
Dipsacus sylvestris, leaf-cups of, 52 
Direction, sense of, among ants, 
260; guided by the position of 
the light, 268; sense of, among 
bees, 278; among wasps, 321, 
420 
Discs, atrophy of imaginal, in 
worker ants, 12; cleared by 
harvesting ants, 61; experi- 
ments as to sense of directicn 
with rotating, 261, &c. 
Division of labour among ants, 
23, 44; tabular view of experi- 
ments on, 324 
Domestic animals of ants, 68-78 
Driver ants, see Anomma arecens 
Dujardin, M., as to the power of 
