Two new genera, two new subgenera, and four new species of Lithosiina from China and northern Indochina (Lepidoptera: Erebidae: Arctiinae: Lithosiini) Author Volynkin, Anton V. Altai State University, Lenina Avenue, 61, RF- 656049, Barnaul, Russia. monstruncusarctia@gmail.com Author Saldaitis, Aidas 0000-0003-0999-3996 Nature Research Centre, Akademijos str., 2, LT- 08412, Vilnius- 21, Lithuania. E-mail: saldrasa @ gmail. com; https: // orcid. org / 0000 - 0003 - 0999 - 3996 * Corresponding author. E-mail: monstruncusarctia @ gmail. com; https: // orcid. org / 0000 - 0001 - 9447 - 4925 text Ecologica Montenegrina 2023 2023-11-13 68 140 154 http://dx.doi.org/10.37828/em.2023.68.14 journal article 10.37828/em.2023.68.14 2336-9744 13247254 urn:lsid:zoobank.org:pub:AAC1A7FA-3259-454E-A278-EE4F64426DD1 Kuatunittia ( Paraxenittia ) sapa sp. n. https://zoobank.org/ urn:lsid:zoobank.org:act: 3C38B6A8-5CAD-4387-B1FA-B437596799A6 ( Figs 10 , 25, 26 ) Type material . Holotype ( Figs 10 , 25 ): male, “N-Vietnam [border of Lai Châu and Lào Cai Provinces] 1600m | Mt. Fan-si-pan(Nord) | Cha-pa, Primärurwald [primary jungle] | 22.17'' N 103.44 ''E [ 22°17'N 103°44'E ] | 20.–30.III.1995 | leg. V . Sinjaev [Sinyaev] & | A. Schintlmeister | Museum Witt” / ‘Slide | ZSM Arct. | 2019-1132 ♂ | A. Volynkin ” ( MWM / ZSM ). Paratype : VIETNAM : 1 male , the same data as in the holotype , gen. prep. No.: ZSM Arct. 2019- 1133 ♂ ( MWM / ZSM ) . Diagnosis . The forewing length is 15.0–15.5 mm in males. The new species is externally reminiscent of the allopatric K. erlanga sp. n. but differs in the smaller size. The detailed comparison of the male genitalia of the two species is provided above in the diagnosis of K. erlanga sp. n. The female is unknown. Distribution . Northern Vietnam (border of Lai Châu and Lào Cai Provinces). Etymology . The specific epithet is homonymic of the town of Sapa situated near the type locality of the new species.