xxiv CONTENTS. 



Page 

 LETTER XVI. 



SOCIETIES OP INSECTS. 



1. Imperfect societies - - 290303 



Associations for company - - - - 291 



of males - - - - - 292 



for emigrating ----- 293 

 of Caterpillars ----- 293 



Aphides 294 



Lady-birds - - - - - 295 



Turnip Saw-flies - - - - 295 



Dragon-flies - 295 



Frog-hoppers - 296 



Beetles - - - - - 296 



Butterflies ----- 296 



Field Bugs 297 



Locusts - - jp^. - 298 



for mutual assistance - - 300 



Ateuchus pilularius - - ...-.* .' - 300 



Caterpillars - - ,', . ; .. - 301 



LETTER XVII. 



SOCIETIES or INSECTS continued - - , -. . - 304 347 



2. Perfect societies ( White Ants and Ants) - 304 347 



White Ants. 



Individuals composing the society 

 Establishment of colonies 

 Building and repairing habitations 

 Collecting food 

 Defence of habitations 

 Tertnes lucifugus 



Ants. 



Storing up food - 



(Gould's "English Ants") 



Individuals composing the society 



Formation of new societies Winged Ants 



Language - . - - 



Affections and aversions 



Formic acid - 



Wars - - - V-. /.V'.t 



Slave-making - 



Milch Cattle Aphides, &c. ^y, 



Emigrations - 



Working all night 



- 307 



- 308 



- 310 



- 310 



- 311 



- 312 



- 313 



- 315 



- 316 



- 317 



- 321 



- 324 



- 325 



- 326 



- 328 



- 335 



- 338 



- 342 



Roads and track- ways - 343 



Strength and perseverance - - - - - 344 



Bridge-making ------ 345 



Repose and sleep ------ 345 



Sports and games - - - - - -346 



