Abstract

In 1936, Dr. E. D. Ball in company with Mr. W. E. Stone who is with the U. S. Bureau of Entomology and Plant Quarantine stationed in Mexico City, collected several species of Mexican leafhoppers. A very interesting species collected at that time was apparently not described and does not belong to a known genus. Dr. Ball had, therefore, planned before becoming seriously ill to name the genus for Mr. Stone and the species for Mrs. Stone and their daughter, both of whom have the given name Martha. Since Dr. Ball has not recovered and will probably not again be able to carry on his taxonomic studies, and since I have been working over a large amount of Mexican material, I am happy to name both the genus and species as he had planned and also in honor of my good friends, the three members of the Stone family.

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