The huge moth family Noctuidae contains the following genera:
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Xandria Xanthanomis Xanthia Xanthiria Xanthirinopsis Xanthocosmia Xanthodesma Xanthograpta Xantholepis Xanthomera Xanthomixis Xanthopastis Xanthospilopteryx Xanthostha Xanthothrix Xenapamea Xenopachnobia Xenophysa Xenopseustis Xenotrachea Xerociris Xestia Xiana Xipholeucania Xoria Xylena Xylinissa Xyliodes Xylis Xylocampa Xylomania Xylomoia Xylophylla Xylopolia Xylormisa Xylostola Xylotype Xymehops Xystopeplus
References
Natural History Museum Lepidoptera genus database