Singh, A. P., & Lekhendra. (2021). A record of Ourapteryx dierli Inoue, 1994 (Lepidoptera: Geometridae: Ennominae) from the Garhwal Himalaya, India. Journal of Threatened Taxa, 13(8), 19171–19172. https://doi.org/10.11609/jott.6779.13.8.19171-19172 (Original work published July 26, 2021)