TABLE OF CONTENTS. 



Page. 



Preface . , . . , . , . V 



Table of Contents XXV 



Authorities XXVII 



List of the new genera and the new species, published in the 



notes to this volume XLVII 



Explanations, necessary for the use of the Catalogue .... XLVIII 



Catalogue of North American Diptera 3 



Notes 214 



Index 265 



