TABLE OF CONTENTS TO REPORT IX. 45 



Page. 

 The Rocky Mountain Locust Continued. 



ments -with the eggs find conclusions therefrom, 99 Experiments to 

 test the effects of alternately freezing and thawing, 99 Experiments 

 to test the influence of moisture iipou the eggs, 104 Experiments to 

 test the effects of burying at different depths and of pressing the soil, 

 104 Experiments to test the effects of exposure to the free air, 104 - 

 The Omaha Conference, 106 Remedies and suggestions, 108 Destruc- 

 tion of the young or unfledged locusts, 108 Protection of fruit trees, 

 110 Legislation, 111 Act passed by the Missouri legislature, Ill- 

 Acts passed by the Kansas legislature, 112 Act providing for the de- 

 struction of locusts in Minnesota, 114 Area in which eggs were laid, 

 116 Condition of eggs, 117 Temperature of the winter of 1876-77, 

 120 Prospects for 1877, 121. 



INNOXIOUS INSECTS. 



The Hellgrammite 125 



Its curious egg -mass described, 126 Resembling bird-dung at a distance, 

 126 Where laid, 127 The Egg-burster, 127 Characters and habits 

 of the uewly hatched larva, 127 Difficulty of rearing it in still water, 

 128 The eggs that have been hitherto mistaken for those of Corydalus, 

 128 They are probably those of Belostoma grandis, 128. 

 The Yucca Borer .' 129 



It is single-brooded, 129 Will thrive in the latitude of Saint Louis, 129 

 The larva molts quite often, 129. 



