This monumental, multi-volume work is a complete taxonomic and synonymic catalog of the Orthoptera of the world. Taxonomic entries include data on type localities, type depositories, taxonomic references, and full synonymy.
This project sought to catalogue all Orthopteroid insect species. Addenda to the series appeared from time to time and were published in separate fascicules. Fossil species were planned to be treated separately in a special volume. The author of this series has since retired and we are unfortunately no longer able to source these volumes.