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 Arixyleborus suturalis (Eggers, 1936) Fig. 29G, H, L Xyleboricus suturalis Eggers, 1936b: 91. Arixyleborus suturalis (Eggers): Schedl 1953b : 290. Type material. Paratype (NHMW). New records. Vietnam: Dong Nai, Cat Tien N.P., 11.44221 , 107.43114 , 379 m, 20-22.ii.2017, VN78, A.I. Cognato, T.A. Hoang, ex FIT (MSUC, 1). Diagnosis. 1.5-1.7 mm long (mean = 1.6 mm; n = 5); 2.5-3.0 x as long as wide. This species is distinguished by the protibiae posterior faces inflated, granulate; antennal club wider than long; pronotum lateral margin oblique; pronotum anterior margin without serrations; posterolateral carina acute, carinate; and declivital interstriae 1 strongly elevated on apical 1/2, denticulate, denticles large. Similar species. Arixyleborus minor . Distribution. Indonesia (Java, Maluku), East & West Malaysia, Thailand, Vietnam*. Host plants. Polyphagous ( Browne 1961b ). Remarks. Browne (1961b) gives some details of brood sizes and development.