Adults (dorsal view) and male genitalia. A, B. Pero atridisca Dognin, 1906. Scale bar: 1 cm (A.); 1 mm (B.).

 
 
  Part of: Palacios C, Farfán J, Cerdeña J, Lazo-Rivera A, Parra LE, Vargas HA (2020) A new species and a new record of Pero Herrich-Schäffer, 1855 (Lepidoptera, Geometridae) in the Andes of southern Peru. Nota Lepidopterologica 43: 301-309. https://doi.org/10.3897/nl.43.54177