Language: Italian with bilingual keys in English and Italian
In the present work 156 species, 31 varieties and 4 forms are described, belonging to genus:
The micrographs which accompany the various species are the result of sundry collections, almost all made by G. Lanzoni. Also the colour plates were mostly painted by A. Dermek, Bratislava in accordance with Lanzoni’s directions. Only keys to genera (subgenera) and for each genus to sections and subsections are provided. Several colour plates were made by E. Rebaudengo.