Books about Delias butterflies
There are few useful books about Delias butterflies, here is the list of the Delias books I am using for my research. All of them are useful to understand Delias localities, subspecies and rare forms.
Monographs about Delias butterflies :
There are 2 major monographies written about Delias.
Monograph of the genus Delias by Talbot
G. Talbot has produced a major work about the genus Delias between 1928 and 1937. His monograph is the Bible for all Delias lovers.
This monograph has 656 pages about Delias with beautiful plates and very accurate descriptions.
Published in 6 separate parts, it is extremely rare to find a complete edition which will command a very high price. It is easier to find each of the 6 parts separately and bind the books once complete.
I personally found my monograph parts on Abebooks (a great website for antique entomological books) : Abebooks Talbot Delias
An Illustrated List of the Genus Delias Hübner of the World by Yagishita, Nakano, Morita & Nishiyama
Another major work about Delias butterflies produced by Japanese entomologists. Wonderful plates and biotope pictures, a lot of interesting specimens (forms and aberrations) from Yagishita collection.
The book was until recently sold by Roppon-Ashi online bookshop but is now out-of-print. You can now find it on Abebooks from time to time here.