CONTENTS V 



Page 



Genus Crypt ohypnus Eschscholtz 183 



The Cryptohypmis riparius group 184 



Cryptohypnns junebris Candeze 185 



Cryptohypmis abbreviatus (Say) 185 



Genus Hypnoidtis Stephens 186 



Genus Eanus LeConte 187 



Genus Melaimctes LeConte 189 



Melanactcs densus LeConte 189 



Summary of taxonomic relationships 190 



Diagram of general relationships between lepturoidine genera and 



"species groups" of Ludius 191 



The genus Ludhis 192 



The Athoiis complex 194 



The genus Limonius 195 



The genera Hypnoidtis and Cryptohypmis 195 



The tribe Lepturoidini 196 



List of species studied 196 



Literature cited 199 



Figures i to 40 207 



