A monograph of the Xyleborini (Coleoptera, Curculionidae, Scolytinae) of the Indochinese Peninsula (except Malaysia) and China Author Smith, Sarah M. Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA https://orcid.org/0000-0002-5173-3736 camptocerus@gmail.com Author Beaver, Roger A. 161 / 2 Mu 5, Soi Wat Pranon, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand Author Cognato, Anthony I. Department of Entomology, Michigan State University, 288 Farm Lane, East Lansing, Michigan 48824, USA text ZooKeys 2020 983 1 442 http://dx.doi.org/10.3897/zookeys.983.52630 journal article http://dx.doi.org/10.3897/zookeys.983.52630 1313-2970-983-1 7DED4CE2934C4539945F758930C927F9 C890C7FD4B2D57A8B1A062305ED42D53 Microperus nudibrevis (Schedl, 1942) Fig. 68E, F, K Xyleborus nudibrevis Schedl, 1942a: 195. Coptodryas nudibrevis (Schedl): Wood and Bright 1992 : 825. Microperus nudibrevis (Schedl): Beaver et al. 2014 : 55. Type material. Holotype (NHMW). New records. China: Hong Kong, Tai Po Kau, vi.2017, J. Skelton (MSUC, 2). Japan: Okinawa, Yona, xi.2011, J. Hulcr, ex Castanopsis (MSUC, 1). Vietnam: Dong Nai, Cat Tien N.P., 11.42232 , 107.42834 , 128 m, 19.ii.2017, VN74, A.I. Cognato, T.A. Hoang, ex bottle trap (MSUC, 1). Diagnosis. 1.5-1.6 mm long (mean = 1.53 mm; n = 5); 2.5-2.91 x as long as wide. This species is distinguished by the elytral disc flat with short and steep obliquely truncate declivity; posterolateral carina strong and denticulate; declivital interstriae straight from base to apex, never laterally broadened; declivital interstriae densely granulate, granules uniformly sized and spaced from declivital summit to elytral apex; and declivital face opalescent, subshiny. Similar species. Microperus kirishimanus , M. latesalebrinus , M. perparvus . Distribution. China* (Hong Kong), Japan*, East & West Malaysia, Thailand, Vietnam*. Host plants. Recorded from five genera in five different families of trees, and presumably polyphagous ( Beaver et al. 2014 ). Remarks. Browne (1961a) suggests that the female lays eggs in clusters over a considerable period, the offspring from each cluster occupying a separate brood chamber.