Resultats Scientifiques du Voyage aux Indes Orientales Neerlandaises de Ll. Aa. Rr. le Prince et la Princesse Leopold de Belgique, Volume IV, fascicle 6 + 12: Lepidoptera I + II Publisher’s original printed blue front

Publisher’s original printed blue front wrapper (rear wrapper is missing)

based on 450 specimens

His De piscibus marinis covered far more species than any earlier work in the field

The finely detailed plates were lithographed in Milan and Florence and the text was printed in Saint Petersburg (modified after Kraig Adler)

printed on glossy thick paper

Resultats Scientifiques du Voyage aux Indes Orientales Neerlandaises de Ll. Aa. Rr. le Prince et la Princesse Leopold de Belgique, Volume IV, fascicle 6 + 12: Lepidoptera I + II Publisher’s original printed blue frontPp. 99, 2 full page foldout black and white plates, some text figures; pp. 64, 11 full page foldout black and white plates, some text figures. Original printed gray wrappers, sm folio (13 x 10 inches). This work details the butterflies and moths of the East Indies now known as island Southeast Asia. Part I covers 10 different lepidopteron groups authored by ten different authorities. Part II covers 2 the Pyralidae by J. T. Janse and the Heterocera by