Abstract.— The species classification and synonymy of the Catalogue of the Homoptera Fascicle 6 are revised to conform with the current International Code of Zoological Nomenclature. This 516-page abridgment of Fascicle 6 includes a new 104-page index. The original 7,041-page catalogue covered all citations, on all subjects, to the 11,007 leafhopper species described from 1758-1955, and is still the starting point for all taxonomic research on Cicadellidae. The present checklist is disseminated electronically to broaden access to the information. Current country-level distribution of each species is also given, usually based on the localities listed in the original catalogue. The index to species is provided so that useful hardcopies of this checklist can be printed, which is encouraged.

Format.—The original combination of every name can be unambiguously inferred from the synonymy listing. Nevertheless, it is not always straightforward for subspecies that are valid and have changed status since their description. Explanation by example is given below.

The first entry below shows a subspecies that was originally described as such. The second entry below is for a subspecies that was originally described as a full species, as Ciccus cinctipes. The third entry below shows a subspecies that was originally described under a different nominate species, as Cicadella gothica atra. The last entry below shows a species that was originally described as a subspecies, as Cicadella hieroglyphica inscripta.