Two new species of the subgenus Conicornuta Volynkin, 2019 of the genus Ammatho Walker, 1855 from China and northern Vietnam (Lepidoptera, Erebidae Arctiinae) Author Volynkin, Anton V. Altai State University, Lenina Avenue, 61, RF- 656049, Barnaul, Russia. & National Research Tomsk State University, Lenina Avenue, 36, RF- 634050, Tomsk, Russia Author Huang, Si-Yao 0000-0002-9859-9212 Department of Entomology, College of Agriculture, South China Agricultural University, Guangzhou, 510642, Guangdong, China. 1830763077 @ qq. com; https: // orcid. org / 0000 - 0002 - 9859 - 9212 1830763077@qq.com Author Derzhinsky, Yevgeniy A. Vitebsk State University named after P. M. Masherov, Moskovskiy Av., 33, Vitebsk 210038 Belarus. text Zootaxa 2020 2020-11-12 4878 1 182 188 journal article 8046 10.11646/zootaxa.4878.1.9 a0f7d28f-528d-4ba3-b449-6b3a263a3db7 1175-5326 4424874 64E48222-1069-4419-9517-53A978B66BB8 Subgenus Conicornuta Volynkin, 2019 Ammatho ( Conicornuta ) Volynkin in Volynkin, Huang & Ivanova, 2019 , Ecologica Montenegrina 26 : 21, figs 15, 16, 111, 167 ( Type species: Miltochrista convexa Wileman, 1910 , by the original designation). Diagnosis . The male genital capsule ground plan of species of the subgenus is similar to that of the subgenus Striatella Volynkin & Huang, 2019 , but Conicornuta is characterized by the short but robust and bifurcated distal costal process, and the presence of a short medial saccular process. The aedeagus vesica of Conicornuta bears long and robust cornuti unlike Striatella having broad clusters of numerous small short cornuti or granulation. The female genitalia of Conicornuta are characterized by the presence of sclerotized lobes in the posterior section of corpus bursae and in basal section of appendix bursae. Distribution . Species of the subgenus are known from Taiwan Island , continental China and northern Vietnam .