Erlacher, S., Palma, L. M., & Erlacher, J. (2017).

A systematic revision of Charissa, subgenus Pterygnophos Wehrli, 1951, with description of a new species (Lepidoptera: Geometridae)

. Zootaxa, 4341(3), 400–418. https://doi.org/10.11646/zootaxa.4341.3.4