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 recidens (Sampson, 1923) Fig. 69G, H, L Xyleborus recidens Sampson, 1923: 287. Coptodryas recidens (Sampson): Wood 1989 : 171. Microperus recidens (Sampson): Beaver et al. 2014 : 56. Xyleborus minusculus Eggers, 1923: 212. Synonymy: Eggers 1925 : 154. Xyleborus minutissimus Eggers, 1930: 204. Synonymy: Wood 1989 : 171. Xyleborus crassitarsus Schedl, 1936d: 28. Synonymy: Browne 1955 : 364. Xyleborus artegraphus Schedl, 1942c: 44. Synonymy: Hulcr and Cognato 2013 : 111. Xyleborus extensus Schedl, 1955a: 301. Synonymy: Hulcr and Cognato 2013 : 111. Xyleborus tuberculosus Browne, 1981b: 602. Synonymy: Beaver 1995a : 198. Type material. Lectotype Xyleborus minusculus (NMNH). Syntypes Xyleborus recidens (NHMUK). Holotype , paratype Xyleborus tuberculosus (NHMUK). New records. China: Jiangxi, Xunwu, Xingshan, 6.ix.2018, Y. Li, ex Fagaceae log (UFFE, 1). S Yunnan, Xishuangbanna, 23 km NW Jinghong, vic. Na Ban village (NNNR), 22°10'N , 100°39'E , 700-1000 m, v-vii. 2009, L. Meng (RABC, 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 porch light (MSUC, 1). Diagnosis. 1.9-2.0 mm long (mean = 1.97 mm; n = 5); 2.71-2.86 x as long as wide. This species is distinguished by the elytral disc flat with short, steep declivity; posterolateral margin of elytra carinate; declivity with sparse minor denticles, much less abundant than strial punctures; and a pair of slightly larger denticles on interstriae 3. Similar species. Microperus alpha . Distribution. Bangladesh, 'Borneo' , Brunei, China* (Jiangxi, Yunnan), India (Andaman Is, West Bengal), Indonesia (Engano I., Java, Maluku), East & West Malaysia, Myanmar, New Guinea, Philippines, Thailand, Vietnam*. Host plants. Polyphagous ( Beeson 1961 ).