Genus Microlithosia (Lepidoptera, Erebidae, Arctiinae) in Laos, with the description of a new species Author Bayarsaikhan, Ulziijargal Author Lee, Dong-June Author Bae, Yang-Seop text Zootaxa 2018 4420 4 502 508 journal article 29158 10.11646/zootaxa.4420.4.3 45d116e6-543a-4b1b-9e4c-6a09146d4b5d 1175-5326 1455403 7299367F-C279-40CA-88C4-B3A95842F95C Microlithosia nanlingica Dubatolov, Kishida & Wang, 2012 ( Figs. 3 , 6 ) Microlithosia shaowuica (part.): Fang, 2000, Fauna Sinica (Insecta) 19: 287–288, fig. 202 (male genitalia), pl. XIII, fig. 23. Microlithosia nanlingica Dubatolov, Kishida & Wang, 2012 , Tinea 22(1): 39. TL: China (Guangdong). Redescription. Adult ( Fig. 3 ). Length of forewing 9˗10 mm in male. Head and thorax yellowish. Ground color of forewing dark yellowish, costal margin slightly convex medially, with clear a dark discal spot and a dark patch on costal margin, and a diffuse claviform spots, or absent this; cilia yellowish. Hindwing yellowish; cilia pale yellowish. Abdomen pale yellowish. Male genitalia ( Fig. 6 ). Uncus slender, hook-shaped, with small spine at top, almost same length with tegumen; cucullus shark dorsal fin-shaped, apex rounded; distal saccular process tapering to apex, reaching apex of valvae, curved downwards apically, asymmetrical, each one with two sclerotized branches, these branches closer located to each other on right process; basal saccular process stout, finger-shaped, bears stout setea whole of length, left one twice longer than right process; juxta semicircular; aedeagus short, stout, a long process originated from the middle part of aedeagus; vesica without cornuti. Female unknown. Material examined. Laos : 1 ♂ , Prov. Xieng Khouang , Ban Tha (N19˚44′50.20″, E103˚37′28.10″), 29.VI– 1.VII.2017 ( Y.S. Bae , S.M. Na , D.J. Lee , J.H. Ko and T.K. Lee ), Gen. Slide No. INU –1848L. Distribution. Laos (new record), China .