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 Ambrosiophilus semirufus ( Schedl, 1959 ) stat. res., comb. nov. Xyleborus semirufus Schedl, 1959: 499 . Remarks. This species was previously considered a synonym of Ambrosiodmus obliquecauda ( Motschulsky, 1863 ) (here placed in Euwallacea , see below) by Wood (1989: 170) . Images of the lectotype of Phloeotrogus obliquecauda and a paratype of X. semirufus were examined and compared by SMS and RAB. Both species have somewhat similar elytral declivital sculpturing with two or three pairs of large tubercles on interstriae 2, however they clearly differ in form, especially in the form of the pronotum with is quadrate in dorsal profile in E. obliquecauda and rounded in A. semirufus . The species has the characteristics of Ambrosiophilus given above for A. bispinosulus and is here transferred to that genus. Distribution. Sri Lanka .