New species of Itara (Orthoptera: Grylloidea: Itarinae) and descriptions of calling songs from Mindanao and Sabah Author Tan, Ming Kai Block 207 A, Woodleigh Link, Singapore 361207, Republic of Singapore. Author Grumo, Kim C. 0009-0002-1091-9355 Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, Iligan City 9200, Philippines. kim.grumo@g.msuiit.edu.ph Author Gono, Alfredo Iii A. 0009-0000-4180-5970 Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, Iligan City 9200, Philippines. alfredoiii.gono@g.msuiit.edu.ph Author Bahoy, Daphne Cayle M. 0009-0006-9609-0312 Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, Iligan City 9200, Philippines. daphnecayle.bahoy@g.msuiit.edu.ph Author Rivera, Rodrin R. 0000-0003-3019-0258 Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, Iligan City 9200, Philippines. rodrin.rivera@nmsc.edu.ph Author Nuñeza, Olga Macas 0000-0002-7102-9674 Department of Biological Sciences, College of Science and Mathematics, Mindanao State University-Iligan Institute of Technology, Tibanga, Iligan City 9200, Philippines. olga.nuneza@g.msuiit.edu.ph Author Japir, Razy Forest Research Centre (Sepilok), Sabah Forestry Department, PO Box 1407, 90715 Sandakan, Sabah, Malaysia. razy.japir@sabah.gov.my Author Chung, Arthur Y. C. Forest Research Centre (Sepilok), Sabah Forestry Department, PO Box 1407, 90715 Sandakan, Sabah, Malaysia. arthur.chung@sabah.gov.my text Zootaxa 2024 2024-03-12 5424 1 61 79 http://dx.doi.org/10.11646/zootaxa.5424.1.3 journal article 10.11646/zootaxa.5424.1.3 1175-5326 10808003 D3515496-31E1-48A4-B214-1AC668FB38D5 Itara ( Singitara ) singularis Gorochov, 1997 ( Figs 6–9 ) Itara ( Singitara ) singularis Gorochov, 1997: 68 — Gorochov, 2007: 207 (record in Mount Trus Madi) Material examined. EAST MALAYSIA : Sabah State : Mount Trus Madi • 1♂ ; Trusmadi Entomology Camp ; N5.44292 , E116.45129 , 1189.0± 5.6 m .a.s.l.; 1 November 2023 , 19h03; attracted to light trap at the camp; coll. M.K. Tan , J.L. Yukang & A.Y.C. Chung ; SBH.23.80 ( FRC ) • 1♂ ; Trusmadi Entomology Camp ; N5.44292 , E116.45129 , 1189.0± 5.6 m .a.s.l.; 2 November 2023 , 18h40; calling among shrub; coll. M.K. Tan , J.L. Yukang & A.Y.C. Chung ; SBH.23.113 ( ZRC ) ( Fig. 6 ) • 1♂ ; Trusmadi Entomology Camp ; N5.44174 , E116.45074 , 1189.0± 5.2 m .a.s.l.; 2 November 2023 , 20h30; attracted to light trap at the ridge; coll. M.K. Tan , J.L. Yukang & A.Y.C. Chung ; SBH.23.127 ( MNHN ) Remarks. The genitalia of our male specimens ( Fig. 7 ) resemble the ones described by Gorochov (1997 , 2007 ). Ecology. The species was found to be attracted to light towards the forest edge ( Fig. 8 ) and call among shrubs ( Fig. 6 ). Type locality. SINGAPORE Distribution. Malay Peninsula ( Singapore ); Borneo (Sabah: Mount Trus Madi) Calling song ( 1♂ , 25.0°C) ( Fig. 9 ). The calling song consists of a series of echemes. Each echeme typically consists of 18±2 (15–21) discrete syllables and has an average duration of 0.55±0.05 s (0.45–0.64 s). The average interval between consecutive echemes is 0.46±0.08 s (0.25–0.69 s). Within each echeme, each syllable has an average duration of 23.6±0.5 ms (22.9–24.7 ms). The average interval between consecutive syllables is 7.2±0.4 ms (6.1–7.9 ms). The frequency spectrum is pure-tonal and forms a harmonic, with the energy peaking at the fundamental frequency of 4.59±0.00 kHz.