Three new species of the genera Ceraclea Stephens and Setodes Rambur (Trichoptera: Leptoceridae) from Laos and Cambodia Author Laudee, Pongsak 0000-0003-3819-7980 Faculty of Innovative Agriculture and Fishery Establishment Project, Prince of Songkla University, Surat Thani Campus, Surat Thani, Muang District Province, 84100, Thailand pongsak.l@psu.ac.th Author Malicky, Hans 0000-0003-1305-8378 Sonnengasse 13, A- 3293 Lunz am See, Austria tatarin.kyselak@gmail.com Author Takenaka, Masaki 0000-0002-9565-524X Department of Biology, Faculty of Science, Shinshu University, Asahi 3 - 1 - 1, Matsumoto, Nagano 390 - 8621, Japan takenaka10mt@shinshu-u.ac.jp Author Suwannarat, Nannaphat 0000-0002-5109-1825 Program in Fishery Science and Aquatic Resources, Department of Agricultural Technology, King Mongkut’s Institute of Technology Ladkrabang, Prince of Chumphon Campus, Chumphon 86160, Thailand. nannaphat.su@kmitl.ac.th Author Kong, Chamroeun 0000-0002-41417270 Kampong Speu Institute of Technology, Amleang, Kampong Speu Province, Cambodia kongchamroeuns@gmail.com Author Vongswombath, Chanda 0009-0006-9719-3065 Faculty of Environmental Sciences, National University of Laos, Dong Dok Campus, Vientiane, Laos chanda.vongsombath@nuol.edu.la Author Tojo, Koji 0000-0002-9362-604X Department of Biology, Faculty of Science, Shinshu University, Asahi 3 - 1 - 1, Matsumoto, Nagano 390 - 8621, Japan ktojo@shinshu-u.ac.jp text Zootaxa 2024 2024-06-17 5471 1 134 140 http://dx.doi.org/10.11646/zootaxa.5471.1.9 journal article 10.11646/zootaxa.5471.1.9 9c0f015e-8e58-4a25-87c8-b74973bf4459 1175-5326 12189882 16992870-0EF2-4E73-A3A7-319DF5E99623 Setodes mongkondechsawati Malicky & Laudee n. sp. Figs 3A–3D Type material. Holotype male ( PSUNHM ). Cambodia : Siem Reap Province , O Ta Khok , Phnom Kulen , 13°33’38”N , 104°07’43”E , ca. 260 m a.s.l. , 17.vi.2022 , leg. Pongsak Laudee. Paratypes . Same data as holotype, 1 male ( CHM ) . Etymology. The species is named for Mr. Vorawut Mongkondechsawat. Description. Length of each male forewing 4.5 mm ( N = 2); specimens in alcohol with head and thorax brown, abdomen yellowish. Male genitalia ( Figs 3A–3D ). Segment IX in lateral view sac-like ventrally, subdorsal part fused with segment X, anterior margin convex, posterior margin deeply incised, ventral margin round ( Fig. 1A ); nearly hemispherical and truncate apically in ventral view ( Fig. 3C ). Setose preanal appendages semi-ellipsoidal in dorsal view and fused with tergum X ( Figs 3A ). Segment X with spiny apicodorsal process and pair of large apicolateral processes apically acute in lateral view; trapezoidal basally with spiny circular apicodorsal plate and with pair of apicolateral processes with round apices in dorsal view ( Fig. 2B ). In lateral view, inferior appendages each with two branches; lower branch crescentiform, posterior margin with tooth-like seta-bearing spines, upper part somewhat triangular; in ventral view, triangular with numerous setae, pointed apex ( Fig. 3C ). Phallus tubular, curved downward subbasally in lateral view; phallobase crescentiform; parameres slender and long, recurved downward; phallicata tubular, curved downward, apex round ( Fig. 3D ). Diagnosis. The new species is in the group which includes Setodes akrura , S . abhirakta , S . nausithoos , and Setodes xangthevadaensis n. sp. . The genitalia of Setodes mongkondechsawati n. sp. are most similar to Setodes xangthevadaensis n. sp. , but these can be easily distinguished by the dorsal view of the apicodorsal process of segment X, which is circular in Setodes mongkondechsawati n. sp. while the apicodorsal process in Setodes xangthevadaensis n. sp. is trifurcate.