IV INSECTS AFFECTING STORED PRODUCTS. 
The lesser grain-borer, etc. — Continued. Page. 
Distribution 31 
Literature, known history, and habits 32 
Office notes and correspondence 32 
Biologic notes 35 
Experiments with remedies 36 
General conclusions 46 
Bibliography 46 
The larger grain-borer D inoderus truncatus Horn) F. Ft. Chittenden . .. 48 
Introductory 48 
Description 48 
History and literature 50 
Office experiments 50 
Bibliography 52 
Carbon tetrachlorid as a substitute for carbon bisulphid in fumigation against 
insects F. H. Chittenden and C. H. Popenoe. . 53 
Introduction '. 53 
Experiments at Washington. D . C ." 54 
Experiments at Baltimore. Md 55 
Comparative cost of carbon bisulphid and carbon tetrachlorid 56 
Conclusions .' : . . 57 
The broad-bean weevil (Laria rufimand Boh.) F. H. Oh itienden . . 59 
Introductory 59 
Description 59 
Distribution 62 
Records of occurrence 62 
Xotes on occurrence in California, by Wm. B. Parker, agent 64 
Alleged poisonous nature of the weevil 66 
Germination of seed 68 
Summary of nature of attack and life history 70 
Literature and history. , 72 
Natural enemies 72 
Experiments with remedies, by Wm. B . Parker, agent 74 
Methods of control 75 
Bibliography : . . . 80 
The cowpea weevil i Pachymerus chinensis L.) F. H. Chittenden. . 83 
Introductory 83 
Descriptive - 83 
Synonymy 85 
Distribution 85 
Life history and habits 86 
Oviposition • 86 
Life-cycle periods 87 
X umber of generations 88 
Longevity of adults 89 
Food plants ' 89 
The point of exit of the beetle from the seed •? 89 
Susceptibility of different varieties of cowpea SO 
Summary of life history - SO 
Literature 91 
Methods of control 92 
Bibliography 93 
Index 95 
