Memoirs 



OF THE 



American Entomological Society 



Number 3 



A VENATIONAL STUDY OF THE SUBORDER ZYGOPTERA 

 (ODONATA) WITH KEYS FOR THE IDENTIFICATION 



OF GENERA 1 



By Philip A. Munz 

 CONTENTS 



PAGE 



I. Introduction 3 



Acknowledgements 3 



Nomenclature of wing- veins 4 



Explanation of figures y 



II. A Discussion of the Phylogeny j 



The Anisozygoptera y 



The Zygoptera 8'> 



The Agrionidae ^ 



The PolytJwrinae 10 



The Agrioninae 1 1 



The Epallaginae 12 



The Disparocyphinae 13. 



The Coenagrionidae ..." 13, 



The Lestinae 15, 



The Lestoidinae 17- 



The Megapodagrioninae jj 



The Pseiidostigmatinae 20 



The Coenagrioninae 21 



The Protoneurinae 24 



1 A Contribution from the Entomological Laboratory of Cornell University. 



MEM. AM. ENT. SOC, 3. 



