The genus Munina Chen, 1976, and M. donacioides Chen, 1976, are redescribed. Munina laotica sp. nov. from Laos is described. The examined paratype of Munina flavida Yang & Yao, 1997 proved to be a female of M. donacioides Chen, 1976, thus M. flavida is proposed as its new synonym. M. donacioides is reported for the first time from Laos. Male and female genitalia of both species are illustrated. ... [Show full abstract] The generic position within Galerucinae is discussed and transfer from Monoleptites Chapuis, 1875 to Antiphites Chapuis, 1875 (tribe Sermylini Wilcox, 1965) is proposed.