Volynkin, A.V., Huang, S.-Y. and Derzhinsky, Y.A. 2020. Two new species of the subgenus Conicornuta Volynkin, 2019 of the genus Ammatho Walker, 1855 from China and northern Vietnam (Lepidoptera, Erebidae, Arctiinae). Zootaxa. 4878, 1 (Nov. 2020), 182–188. DOI:https://doi.org/10.11646/zootaxa.4878.1.9.