The purpose of this application, under Article 33.2.3 of the Code, is to correct the spelling cheesmani to cheesmanae for a tree frog named after Evelyn Cheesman. Following the finding that Hyla montana Peters & Doria, 1878 was in reality a member of the genus Nyctimystes Stejneger, N. montana Parker, 1936 became a secondary homonym. The replacement name, N. cheesmani Tyler, 1964, was given a masculine suffix, in error. Following the emendation to the feminine cheesmanae by Menzies (1976), there has been argument about whether the emendation was justified or not. To resolve the matter the Commission is here asked to rule that the emendation was justified and to place N. cheesmanae on the Official List of Specific Names in Zoology.