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 XL VII 



Explanations, nec< ssary for the use of the Catalogue .... XL VIII 



Catalogue of North Ami rican Diptera 3 



Notes 214 



Index 265 



63028 



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