6 CONTENTS. 



The colony as a whole — Continued. Page. 



Migrations 54 



General migration or dispersion 54 



Migration to food supply 54 



Concentrating migration 54 



Di\'isional migration 55 



Nests or natural formicaries 55 



Underground nests 56 



Wet-weather nests or sheds 56 



General ohservations 57 



Aversion to light 57 



Sense of smell 57 



Sight 57 



Hearing 58 



Cannibalism 58 



Sanitation 59 



Rate of travel 59 



Storage of food CO 



Relations with other Arthropoda 61 



Formicidpe 61 



Coccidse and Aphididse 62 



List of Coccidse and ApMdidae attended by the Argentine ant 66 



Antagonism toward other insects 66 



The Argentine ant and the boll weevil 68 



Beneficial aspects of the ant's activities 69 



Symbiotic relations 71 



Inquilincs 72 



Natural control • 72 



Natural enemies 72 



Insects and spiders - 72 



Birds 73 



Experiments with Pediculoides 73 



Experiments with fungous diseases 75 



Low temperatures 76 



Floods 76 



Methods of repression 76 



Experiments with repellents 78 



Corrosive sublimate and "ant tapes " 80 



Experiments with fumigants and contact insecticides iSl 



Experiments with poisons <S4 



Control of the ant in residences 87 



Control of the ant in apiaries 88 



Control of the ant in orange groves 91 



Method of dissemination in the orange section 93 



Experiments in the orange groves 94 



Experiments wiih wdnter trap boxes 95 



Bil)Uograpliy 97 



