For this revised edition, the treatment of the Lycaenidae has been split over three books. Part 3 of deals with the butterfly families Lycaenida and Riodinidae and continues the pagination (pages 531–880) from volume 2. This taxonomical work is based on some 60 years of fieldwork and study of museum collections. An extended 50-page introductory section reafirms the author's anti-evolutionist views.