

CONTENTS. 



PAGE. 



Acknowledgments xi 



Preface 1 



PART I. ALFALFA AND GRASSHOPPERS. 



Introduction 5 



Grasshoppers in General 9 



Native Grasshoppers in Kansas 11 



Edwards county ' 12 



Ford county 13 



Finney county 13 



Hamilton county 14 



Greeley county 15 



Wallace county 16 



Logan county 16 



Thomas county 16 



Sherman county 16 



Decatur county 18 



Norton county 18 



Species of Grasshoppers Prevalent 19 



Life-History of the Differential Locust 20 



Embryology 20 



Description of the egg 20 



Method of oviposition 21 



Where the eggs are laid 23 



Molting 27 



Habits 28 



Food 28 



Actions 28 



Borders of the field stripped 28 



Length of flight 29 



Habitat 29 



Natural enemies 29 



Vertebrate 29 



Birds 30 



Blacksnakes 30 



Invertebrate 31 



Locust mite 31 



Beetles 31 



Flies 31 



Parasitic influences on Melanoplus 32 



Sarcophaga cimbicis 33 



Sarcophaga hunteri 34 



Locust fungus 37 



Observations upon the Differential Locust made in widely separated 



localities '. . .' 38 



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