Three new species of the genus Ammatho Walker, 1855 from China and Indochina (Lepidoptera: Erebidae: Arctiinae: Lithosiini)

Three new species of the genus Ammatho Walker, 1855 are described from mainland China and Indochina: Ammatho (Striatella) inexpecta Huang Volynkin sp. nov. from Guangdong, Southern China and Tam Dao, Northern Vietnam; Ammatho (Ammathella) gesar Huang Volynkin sp. nov. from Xizang, Southwestern China and Ammatho (Ammathella) shingwa Volynkin Huang sp. nov. from Kachin, Northeastern Myanmar. Adults and genitalia of related species are illustrated.