A taxonomic review of Sueus Murayama, 1951 ambrosia beetles (Coleoptera: Curculionidae: Scolytinae: Hyorrhynchini) aided by molecular phylogenetic analyses Author Cognato, Anthony I. Department of Entomology, Michigan State University, 288 Farm Lane, 243 Natural Science Bldg, East Lansing, MI 48824, USA. Author Smith, Sarah M. 0000-0002-5173-3736 smith462@msu.edu Author Schiffer, Matthew 0009-0004-0517-4138 schiff14@msu.edu Author Li, You College of Plant Protection, Fujian Agriculture and Forestry University, Fuzhou 350002, China. text Zootaxa 2024 2024-07-10 5477 4 475 493 http://dx.doi.org/10.11646/zootaxa.5477.4.5 journal article 10.11646/zootaxa.5477.4.5 1175-5326 12733244 99E77135-D62D-40FA-AC50-F53F37C29975 Sueus Murayama, 1951 Sueus Murayama, 1951: 1 . Type species Sueus sphaerotrypoides Murayama, 1951 = Hyorrhynchus niisimai Eggers, 1926 , original designation. Diagnosis. Length 1.6–3.0 mm, 1.82–2.5 × longer than wide, body black. Sueus is distinguished by the following combination of characters: eyes completely divided without a separating carina in either sex; antennal club less than 1.5 × longer than wide, forming a slightly flattened cone; female antennal funicle five or six segmented; protibia outer apical angle produced into one conspicuous spine; procoxae widely separated; and dwarf males. Sueus can be further distinguished from the other Hyorrhynchini genera Hyorrhynchus and Pseudohyorrhynchus which have eyes completely divided and separated, in part, by a carina (males); antennal club that is 1.5–2.0 × longer then wide and flattened; antennal funicle six segmented; and males that are comparable to females in size.