VI PRErACB. 



Noctuidce ; in three genera vein 5 of the hind wing is somewhat 

 aborted from below the middle of the discoeellulars and in these 

 the larva3 are semiloopers with the first two pairs of abdominal 

 prolegs absent, whilst in all the other forms of the four subfamilies 

 the four pairs of abdominal prolegs are present. 



The four subfamilies are modifications of the great Quadrifid 

 section of the Noctuidce and are almost confined to the tropical and 

 warmer temperate regions, few genera and species extending to the 

 colder zones, and none to the Arctic and Alpine zones. 



Sir George Hampson has to acknowledge the assistance which 

 he has received, mostly from those whose help has been referred 

 to in earlier volumes of the Catalogue, by the loan of types and 

 specimens, and in other ways. 



The coloured drawings which have been made for him from types 

 of species which are not in the collection of the British Museum, 

 and of which he has been unable to examine specimens, have been 

 reproduced and are severally acknowledged in the text. 



The Plates published in connection with this volume are numbers 

 CLXXIV.-CXCI., part of Plate CLXXIV. referring to Vol. X. of 

 the Catalogue. 



SIDNEY F. HARMEIl, 



British Museum (Natural Historj), Keeper of Zoology. 



February 9th, 1912. 



