TABLE OF CONTENTS. 



Paijc. 



Introductory remarks^ucl definitions 5-7 



Acknowledgments 7,8 



Divisions defined 8-11 



Synopsis of genera and groups 12, 13 



Genus RiiYXCiiAGROTis 13-38 



Group chardiinji 13, 14 



Group ciipida 15-28 



characters and scheme of division ir)-17 



Bynopsis of species 17 



descriptions of species 17-28 



Group cxxertistlgma 28-38 



characters and scheme of division 28-30 



synopsis of species .: 30 



descriptions of species 30-38 



Genus Adelphaghotis 38-43 



characters and scheme of division 38,39 



synopsis of species 39 



descriptions of species 39-43 



(ienns Platagkotis 43-47 



characters and scheme of division 43 



synopsis of species 44 



descriptions of species 44-47 



lien us EUERETAGROTIS 47-49 



characters and scheme of division 47 



descriptions of species 48, 49 



Genus Abagrotis 49-50 



characters of genus 49 



descriptions of species 50 



Genus Semiophora 50-53 



cliaracters and scheme of division 50 



descriptions of species 51-53 



Genus Pachxobia 53-59 



characters and scheme of division 53, 54 



synopsis of species 55 



descriptions of species 55-59 



Genus Sktagrotis 59,60 



characters of genus 59 



descriptions of species 59,60 



Genus Agrotis L>y:JJ.LJ 61-65 



characters and scheme of division 61 



synopsis of species 62 



descriptions of species 62-65 



1 



