Adelphe metallica (Kieffer, 1910)

Parachrysis metallica Kieffer, 1910: 288 . Holotype ♂; Brazil: Pará, Belém, A. Baker. Synonym of Pseudepyris flavipes Ducke, 1903 according to Ducke (1911).

Adelphe metallica: Kimsey & Bohart (1991: 86); Kimsey (2008: 161).

Adelphe flavipes: Lucena et al. (2024: 7)

Adelphe metallica was considered a valid species within the genus Adelphe by Kimsey & Bohart (1991), and Kimsey (2008) who revised the Neotropical species and provided diagnostic characters in a key. However, Lucena et al. (2024) synonymized this species again, apparently based on the interpretation by Ducke (1911). We have not personally examined any type material and consider the measurements provided by Kimsey (2008) possibly to reflect intraspecific variability. Nonetheless, further clarification by the authors on their synonymization would have been welcome to better understand their species concept and whether they examined type material or based their interpretation solely on Ducke (1911).