Abstract
Eighteen species of leafhoppers belonging to the family Cicadellidae were associated with blackgram ecosystems, of which one species., Knight, 1973 is identified first time in Andhra Pradesh during 2022-2024 constituting a new distributional viz Hishimonus viraktamathi record.This species was identified based on the shape and length of the head, length of the pronotum, serrations and number of micro and macro setae on the subgenital plates of the male genitalia structures.Adequate description of the species was provided along with illustrations for quick identification.In addition, a diagnostic key with illustrations is presented for the identification of the remaining species associated with blackgram.