The types of Phasmatodea (= Phasmida) deposited in the Eidgenössisches Technisches Hochschulzentrum, Zürich, Switzerland (ETHZ) Author Hennemann, Frank H. Author Conle, Oskar V. Author Brock, Paul D. 0000-0003-0590-0414 Department of Life Sciences, The Natural History Museum, Cromwell Road, London, SW 7 5 BD, U. K. pauldbrock @ btinternet. com; https: // orcid. org / 0000 - 0003 - 0590 - 0414; Website: http: // Phasmida. SpeciesFile. org pauldbrock@btinternet.com text Zootaxa 2023 2023-05-04 5278 1 176 188 http://dx.doi.org/10.11646/zootaxa.5278.1.10 journal article 10.11646/zootaxa.5278.1.10 1175-5326 7894794 0C97A42F-1155-4690-8C61-B403AF8B6CEB unicolor Redtenbacher, 1908: 512 [ Marmessoidea ]. LT , ♁ [by present designation]: Siak, Sumatra (Bluntschli); Brunner v. W. et Redtenbacher det. 1903 Type ; Marm. Unicolor Redt. , Comment: There is a possible ♁ syntype with identical data, but without a type label. A lectotype is here designated to ensure stability of Redtenbacher’s unicolor , by selecting the specimen with a type label. This replaces the invalid lectotype designation of Seow-Choen (2021: 418) , as this author chose the specimen with wings open (but no data label). Seow-Choen made no reference to any data when discussing these two specimens . The former LT should now be regarded as just a possible PLT. Valid name: Marmessoidea rosea (Fabricius, 1793)