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 Cryptoxyleborus percuneolus (Schedl, 1951) Fig. 38G, H, L Xyleborus percuneolus Schedl, 1951a: 85. Xyleborinus percuneolus (Schedl): Wood and Bright 1992 : 809. Cryptoxyleborus percuneolus (Schedl): Beaver and Hulcr 2008 : 145. Type material. Lectotype (NHMW). Diagnosis. 1.4 mm long (n = 1); 2.55 x as long as wide ( Sittichaya et al. 2019 ). This species is distinguished by its minute size; elytral pit mycangia absent; antennal funicle 3-segmented; elytral interstriae distinctly seriate punctate, without very densely placed punctures at the base. Similar species. Cryptoxyleborus confusus , Fraudatrix simplex . Distribution. Indonesia (Java), East Malaysia, Thailand. Host plants. No host records are known but hosts are presumably similar to other Cryptoxyleborus which are specific to Dipterocarpaceae ( Beaver and Hulcr 2008 ). Remarks. One gallery system investigated consisted of an unbranched entrance tunnel leading to a single terminal brood chamber enlarged in the longitudinal plane, with multiple tunnels extending further into the wood ( Beaver and Hulcr 2008 ).