摘要We provide an integrative taxonomic analysis of the Lipinia vittigera species complex from mainland Southeast Asia.Based on examination of external morphology,color pattern,and 681 base pairs of the cytochrome oxidase subunit I (COl) mitochondrial gene,we demonstrate the presence of four morphologically distinct lineages of Lipinia in Vietnam,Cambodia,Thailand,and Malaysia,showing a sequence divergence ranging 15.5％-20.4％.All discovered lineages are discretely diagnosable from one another by a combination of scalation traits and color patterns.A review of the published distribution data and a re-examination of available type material revealed the following results:(1) distribution of L.vittigera (Boulenger,1894) sensu stricto is restricted to Sundaland and the Thai-Malay Peninsula south of the Isthmus of Kra;(2) L.microcercus (Boettger,1901) star.nov.is elevated to full species rank;the species has a wide distribution from central and southern Vietnam across Cambodia to eastern Thailand;we regard Lygosoma vittigerum kronfanum Smith,1922 and Leiolopisma pranensis Cochran,1930 as its junior synonyms;(3) Lipinia trivittata sp.nov.occurs in hilly areas of southern Vietnam,Cambodia,and eastern Thailand;and (4) Lipinia vassilievi sp.nov.is currently known only from a narrow area along the Vietnamese-Cambodian border in the foothills of the central Annamite Mountain Range.We further provide an identification key for Lipinia occurring in mainland Southeast Asia.