Bioacoustics and systematics of Mecopoda (and related forms) from South East Asia and adjacent areas (Orthoptera, Tettigonioidea, Mecopodinae) including some chromosome data Author Heller, Klaus-Gerhard Grillenstieg 18, 39120 Magdeburg, Germany Author Baker, Ed Department of Electronic Engineering, University of York, York, YO 10 5 DD, United Kingdom & Department of Life Sciences, Natural History Museum, London, SW 7 5 BD, United Kingdom. Author Ingrisch, Sigfrid Zoological Research Museum Alexander Koenig, Adenauerallee 160, D- 53113, Bonn, Germany. Author Korsunovskaya, Olga Lomonosov Moscow State University; Leninskie Gory, 1, building 12, Moscow, 119234, Russia. Author Liu, Chun-Xiang 0000-0002-6313-196X Key Laboratory of the Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing, China. iucx @ ioz. ac. cn; https: // orcid. org / 0000 - 0002 - 6313 - 196 X iucx@ioz.ac.cn Author Riede, Klaus Zoological Research Museum Alexander Koenig, Adenauerallee 160, D- 53113, Bonn, Germany. Author Warchałowska-Šliwa, Elżbieta 0000-0001-7812-1644 Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Kraków, Poland. warchalowska @ isez. pan. krakow. pl; https: // orcid. org / 0000 - 0001 - 7812 - 1644 warchalowska@isez.pan.krakow.pl text Zootaxa 2021 2021-07-26 5005 2 101 144 journal article 2565 10.11646/zootaxa.5005.2.1 49bbd860-f04e-444c-8c91-43b938789f38 1175-5326 5141281 6DF7D106-A8FD-4670-AC09-18166D7F4BD4 Mecopoda sismondoi Heller sp. nov. Holotype : male, labels: (1) Singapore [ 1°17′ N , 103°50′ E ] 84 A, (2) Brit. Mus. 1985-242, (3) Molted to adult 28 I 84 gassed on 9 VI 84 , (4) COLLECTED BY E. SISMONDO (5) SONG-RECORDED (6) The stridulation of this specimen has been recorded. Tape No. 568 Recording No 1, (7) NHMUK010210931 . NHM. Song and stridulatory organs studied. Paratypes ; males CH 3746, MALAYSIA : Selangor , Ulu Gombak Field Study Centre ( 20 km nno Kuala Lumpur ) ( 3°20’N , 101°45’E ), 260 m , 8–28 iii 1981 , leg. K.-G. Heller & M. Volleth (song and stridulatory organs). CH 3738, MALAYSIA : Selangor , Ulu Gombak Field Study Centre ( 20 km nno Kuala Lumpur ) ( 3°20’N , 101°45’E ), 260 m , 12–19 iv 1981 , leg. K.-G. Heller & M. Volleth (song and stridulatory organs) (all CH ) . Other material: Male CH7704, SOUTH EAST ASIA , exact locality unknown, obtained from breeder, 2013 (song, stridulatory organs, chromosomes). Males CH3751, CH 3645, CH3739, MALAYSIA : Selangor , Ulu Gombak Field Study Centre ( 20 km nno Kuala Lumpur ) ( 3°20’N , 101°45’E ), 260 m , 12–19 iv 1981 and 28 ii–24 iv 1984 , leg. K.-G. Heller & M. Volleth. Six pairs of male tegmina CH3656, CH 3663, CH3666, CH 3687, CH3688, CH 3690 from the same locality . The song of the species is described by Sismondo (1990) ( SINGAPORE ; as species S), by Korsunoskaya (2008) ( INDONESIA : Sumatra ) and by Hartbauer et al. (2006 ; 2012 ) ( MALAYSIA ). Diagnosis. The species has a much slower echeme repetition rate than the other species of the subgroup (echeme periods about 3 s; Tab. 4 ). Description. Morphologically no difference to other species of the M. confracta subgroup (Liu Cx et al. 2020). Measurements (in mm): CH 3738, 3746: pronotum length 8.0–8.7; tegmen length 55–57; tegmen width 13; hind femora length 42.0–44.5. In peninsular Malaysia , the species is often found syntopically with M. himalaya (our data, Tan & Kamaruddin 2016 ). It is typically a little bit smaller than himalaya and often brown, whereas himalaya is more often green. Chromosomes: 2n = 29, FN = 52; pairs 1 metacentric and 4–7, 9, 10, 12–14 metacentric/ submetacentric, 3 subacrocentric, 2, 8 and 11 acrocentric, X chromosome submetacentric ( Fig. 15 ). Derivatio nominis. Named in honour of Enrico Sismondo who discovered the song diversity of Mecopoda , collected and recorded the type specimens of M. sismondoi and analyzed and described the signal interactions in that genus ( Sismondo 1990 ).