One hundred eighteen taxonomic changes among Xyleborine ambrosia beetles (Coleoptera: Curculionidae: Scolytinae) Author Smith, Sarah M. 0000-0002-5173-3736 Department of Entomology, Michigan State University, 288 Farm Lane, 243 Natural Science Bldg., East Lansing, MI 48824, USA. smith 462 @ msu. edu; https: // orcid. org / 0000 - 0002 - 5173 - 3736 smith462@msu.edu Author Beaver, Roger A. 161 / 2 Mu 5, Soi Wat Pranon, T. Donkaew, A. Maerim, Chiangmai 50180, Thailand. Author Sittichaya, Wisut 0000-0001-6200-1285 Agricultural Innovation and Management Division, Faculty of Natural Resources, Prince of Songkla University, Songkhla, 90110, Thailand. wanakorn 62 @ hotmail. com; https: // orcid. org / 0000 - 0001 - 6200 - 1285 & Department of Entomology, Michigan State University, 288 Farm Lane, 243 Natural Science Bldg., East Lansing, MI 48824, USA. cognato @ msu. edu; https: // orcid. org / 0000 - 0001 - 6436 - 2447 wanakorn62@hotmail.com text Zootaxa 2022 2022-10-05 5194 2 151 175 journal article 158408 10.11646/zootaxa.5194.2.1 ca4aa334-4646-495b-9116-1766a7376728 1175-5326 7147098 C6F3069F-6EC1-4FAC-8870-FC0B53BD45EF Amasa brevipennis ( Schedl, 1971 ) stat. res. Xyleborus brevipennis Schedl, 1971: 378 . Remarks. This species was previously considered a synonym of A. schlichii ( Stebbing, 1914 ) by Wood (1989) . Amasa brevipennis is very similar in appearance to A. striatotruncata ( Schedl, 1971 ) which until recently was also considered a synonym of A. schlichii ( Smith et al . 2020b ) . The holotype of X. brevipennis (NHMUK) and a paralectotype of X. striatotruncatus (NHMUK) were directly compared by SMS. Amasa brevipennis can be distinguished from A. striatotruncata by the following combination of characters ( A. brevipennis given first): declivital interstriae punctate and unarmed vs. interstriae impunctate and granulate on apical half of interstriae 1; all interstriae uniformly convex vs declivital interstriae 1 feebly inflated; circumdeclivital ring smooth and unarmed vs circumdeclivital ring with weakly serrate margin on apical third. Distribution. East Malaysia .