What is "orthorisma"

Orthorisma is a genus of moth in the family Geometridae. It consists of only one species, Orthorisma netunaria, which is found in Brunei, Malaysia (Sabah, Sarawak) and Indonesia (Kalimantan, Natuna Islands, Sumatra).

The wing pattern ranges from pale brown to olivegreen, with dark brown or black speckles and other markings.