This outstanding work is a manual that enables one to identify pupae, or empty pupal skins, of about two thirds (some 2,600 species) of the Central European Lep

Facsimile reprint, on acid-free paper, of five papers originally published 1914-1918 in three scholarly publications (Ann. Entomol. Soc. Amer., Bull. Illinois S

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced