Duckeia gracilis Kimsey, 1987
Duckeia gracile Kimsey, 1987: 74 . Holotype ♀; Brazil: Rio de Janeiro [Represa Rio Grande], July 1972, M. Alvarenga (CNC). Incorrect original spelling. Kimsey & Bohart (1991: 107, 108); Lucena et al. (2021); Lucena & Almeida (2022); Lucena et al. (2024: 15).
Duckeia gracilis: Kimsey & Bohart (1991: 108). Mandatory correction of Duckeia gracile .
Lucena et al. (2024) considered Duckeia gracile as the valid name for this taxon. However, the genus Duckeia is feminine, as treated by the original author (Costa Lima 1936) according to Arts 30.2.2 and 30.2.3. Therefore, the correct spelling of the species name is Duckeia gracilis (feminine), not gracile (neuter).