TABLE UI ; CONTENTS. 



PAGE 



III. Relations of Ants with Coccids 347 



IV. Relations of Ants with Jumping 1'lant-liee 349 



\ . Relations of Ants with free-hoppers ^o 



VI. Evidences for "Mutualism" in the Relations of Ants with 



Homoptera in General 351 



i. Adaptations of Aphids. 2. Adaptations of Ants. 



VII. The Eulgoridae, etc 356 



YIII. Relations of Ants with Lycsenid Caterpillars 357 



IX. " Trophobiosis " 360 



CHAPTER XX. 



HONEY AXTS. 



I. Description of the Honey-storing Habit 361 



II. The Species of Honey Ants 363 



i. Melophorus bagoti and ccnvlci. 2. Leptomyrmex rnfipcs. 

 3. Plaglolepis trimcni. 4. Camponotus iiiflattis. 5. Mynne- 

 cocystiis mclllgcr, inc.ricainis and horti-dcorum. (a) Early 

 Observations. (b) McCook's Observations on M. horti- 

 dcorum. (r) Forel's Observations. (d) Personal Obser- 

 vations. 6. Cremastogaster inflata and diffonnis. 



III. The Causes of Repletion 374 



IV. Relations of Nest Structure and Situation to the Develop- 



ment of Repletes 375 



Y. Adaptations of Diet in Ants Living in Desert Regions. . . . 376 



CHAPTER XXI. 

 PERSECUTED AND TOLERATED GUESTS. 



I. Extranidal and Intranidal Symbiosis 378 



II. Myrmecophiles in General 379 



i. History of Investigations. 2. Number and Diversity. 3. 

 Causes of the Myrmecophilous Habit. 4. Ethological Classi- 

 fication. 5. Progressive Adaptation in the Four Groups. 



III. The Synechthrans 382 



IY. The Synoeketes 383 



i. Neutral Synoeketes. 2. Mime-tic, Loricate, and Symphyloid 

 Synceketcs. 3. The Myrmecocleptics. 4. The Strigilators. 



