422 



INDEX. 



Stone-masefl caterpillars, A, 

 227 ; singular proceedings 

 of, 223 ; colony of, at Black- 

 heath, 229; foundation of 

 the tents of, 231 



Slratiomys chamceleon, Meigen, 

 T. 156, 15'?,/eff.;292 



Strawberry mite, rapid gallop- 

 ing of the, T. 386 



Strength of insects, misstate- 

 ments respecting, T. 185 ( 



Structure of birds to contain 

 air, T. 383 



Sturnus vulgaris, T. 34 



St^lops Meliltce, T. 67, /jV. 



Suckers in insects, structure of 

 the, M. 178 



Sucker of the gnat, M. 195, 



fig- 

 Suckers of some inserts adapt- 

 ed to flowers, M. 51 



Sucking insects, M. 176 

 Suctoria, De Geer, M. 189 



Stigav-ants of the West Indies, 

 A. 286 



Summer-tiy, circular move- 

 ments of a, T. 366 



Suspending chrysalides, me- 

 chanism of, 272 



Suspensory cincture of cater- 

 pillars, method of forming it 

 by the swallow-tail, T. 281 



Swainson, singular mistake of, 

 M. 183 



Swallow-tailed butterfly, ca- 

 terpillar of, weaving its sus- 

 pensory cincture, T. 281, 

 Jigs. ; Kirby's account of 

 the expansion of the, T. 342 



Swammerdam's observations 

 on bees, M. 256 ; classifica- 

 tion, M. 386 



Swarming of bees, M. 283 ; in- 

 dications of, M. 287 



Si/lvia cinerea, Temm., A. 282 



Sylvia atricapi/Ia, M. 115 



Syrphidtzy M. 93 



SylviadcE, M. 124, 145 



Sylvia horlensis, M. 149 ; S. 



phcenicurus, Lath. T. 36 ; 



S. rubecula, 36; M. 115; 



iS'. Irochilus, T. 35 

 Syrphi, A. 392.395; T.4. 45; 



vibratory motions of, when 



flying, T. 360 

 Syrphidce, Leach, T. 5. 270. 



283.360; flask-shaped pup^ 



of, 284 

 Syrphus, T. 284, 285. 398 ; 



and larva devouring aphides, 



'V. 211, figs. ; S. arcualus, 



M. 39 ; S. inanis, muscular 



ribbons for moving the wings 

 ^ of, T. 3dl,figs. 

 Systematic arrangements of 



insects, M. 380 



Tabanida, M. 202 



Tahanns, M- 39 



Tabby moth caterpillar de- 

 vours butter and fat, T. 

 236 ; transformations of, 236, 

 figs. 



Tachina, T. 53 ; T. larmrum, 

 A. 28, 29 



Tact of insects in discovering 

 food for their young, T. 68 



Tactics of the slave-making 

 ants, M. 341 



Taste in insects, M. 23 



Teazle moth, mistakes of Bon- 

 net with regard to the, T. 

 325 



Tectonia grandis, M. 164 



Ttndeuses, Latr., A. 358 



Tenebrio molitor, T. 240 



Tenth redinidce, Leach, T. 121 ; 

 A. 279 ; T. 218 ; M. 43 



Ttnlhredo, A. 152; T. Cera- 

 sis, T. 217 



Tent maker, the pondweed, 

 A. 177 



Tent-making caterpillars, A. 

 223; operations of, A. 224 



Tents, muff-shaped, A. 231 ; 

 utility of, A. 233 



