DfDEX. 



427 



CHE 



Chennimn^ rarely more than one 

 specimen of, in an ants' nest, 78 



Christ, M., on the length of life of 

 qaeen ants, 9 ; on ant roads, 25 



Chrome alum, experiments as to 

 ant vision with, 217 



Chromium chloride, experiments 

 with, 217 



ClaparMe, M, as to insect-vision, 

 183 



Clark, Rev. Hamlet, as to an ant- 

 tunnel in S. America, 25 



Claviger, a blind beetle, a guost 

 in ants' nests, 76, 76 ; experi- 

 ments with, by M. Lesp&s, 90 



Cleanliness of ants, 29 



CoccidcBy their use to ants, 68 



Cocoons spun by some larvae of 

 ants, 7 



Colohapsis truncata, and C.fusipes, 

 two forms of the same species, 

 20 



Colour-sense of ants, 186, 403; 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, 366 ; with bees, 

 276 ; with wasps, 311, 377 



Communities of ants, 24 ; power 

 of mutual recognition among 

 members of, 119, 333 



Compassion among ants, 106, 108 ; 

 absence of, among bees, 286 



Compound eyes in insects, function 

 of, 407 



Co-operation, experiments as to, 

 among ants, 361-366 



Correlation of form of knot with 

 stinging power in ants, 13; of 

 colour in flowers with specialisa- 

 tioi' of form, 308 



Courage of ants. 27 ; of wasps, 314 



Crematug aster lineolata, adoption 

 ol a queen by, 34 



DUJ 



Crematog aster scvtellaris, their 

 neglect of friends in trouble, 

 98 ; experiments as to percep- 

 tion of colour among, 192, 403 



— sordidula, threatening attitude 

 of, 16 



Cross-fertilisation effected by in- 

 sects, 50 



T\APHNIA, limits of vision in, 

 J^ 219 



Darkness, education of young 

 ants 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, 62-7 



Degradation of Strongylognathus, 

 85 ; caused by slaveholding, 89 



Dewitz, Dr., on the non-develop- 

 ment of the sting in the For- 

 micidje, 14 ; on eggs laid by 

 fertile workers, 36, 40 



Dinarda dentata in ants' nestS; 

 76, 77, 4U1 



Dipsacus s^yZwsfm, leaf -cups of, 52 



Direction, sense of, among ants, 

 260, 410 ; guided by the position 

 of the light, 268; sense of, among 

 bees, 278; among wasps, 321, 

 882 



Discs, atrophy of imaginal, in 

 worker ants, 12 ; cleared by 

 harvesting ants, 61 ; experi- 

 ments as to sense of direction 

 with rotating, 261, &c. 



Division of labour among ants, 

 23. 45; tabular view of experi- 

 ments on, 324 



Domestic animals of ants, 68-78 



Driver ants, see Anomma arcens 



Dujardin, M., as to the power of 



