CONTENTS. V 



Preliminary classification of the Superfamily Scolytoidea — Continued. 

 Key to the families — Continued. 



Division I — Continued. Page. 



Subdivision B 225 



Family Scolytidse 225 



Family Scolytoplatypodidse 225 



Division II 225 



Subdivision G ■ 225 



Family Platypodidse 225 



Family Ipidse. Key to the subfamilies 225 



Division 1 225 



Subdivision A 225 



Subfamily Cryphalinse 225 



Subfamily Ipinae 225 



Subfamily Corthylinae 225 



Subfamily Micracinee 225 



Subfamily Webbinse 225 



Subdivision B 225 



Subfamily Xyloctoninse 225 



Division II 225 



Subdivision G 225 



Subfamily Crypturginae 225 



Subfamily Phloeotribinse 225 



Subdivision D 225 



Subfamily Hylesininse 225 



Subfamily Phloeoborinse 225 



Family Scolytidse. Key to the subfamilies 225 



Division 1 225 



Subfamily Coptonotinse 225 



Division II 225 



Subdivision A 225 



Subfamily HexacoLLnge 225 



Subfamily Bothrosteminse 225 



Subfamily Hyorrhynchinse 225 



Subdivision B 225 



Subfamily Camptocerinae 225 



Subfamily Scolytinae 225 



Family Scolytoplatypodidse 225 



Family Platypodidse. Key to the subfamilies 225 



Division 1 225 



Subfamily Platypodinas 225 



Division II 225 



Subfamily Genyocerinse 225 



Subfamily Chapuisinee 225 



Position of the principal described genera in the preliminary classification 226 



Genera described in 1911-12, not included in foregoing list, but here pro- 

 visionally assigned to the subfamilies 227 



Genera of doubtful position 228 



Bibliography 229 



