Review of song patterns and sound production in armoured ground crickets (Orthoptera: Tettigoniidae: Hetrodini) with karyological data and taxonomic notes Author Heller, Klaus-Gerhard Grillenstieg 18, 39120 Magdeburg, Germany Author Chobanov, Dragan 0000-0002-1642-0363 Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, 1 Tsar Osvoboditel Boulevard, 1000 Sofia, Bulgaria. dchobanov @ gmail. com; https: // orcid. org / 0000 - 0002 - 1642 - 0363 dchobanov@gmail.com Author Warchałowska-Śliwa, 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 Author Hemp, Claudia 0000-0001-9170-7113 University of Bayreuth, Germany & Senckenberg Biodiversity and Climate Research Centre, Frankfurt, Germany. claudia. Hemp @ uni-bayreuth. de; https: // orcid. org / 0000 - 0001 - 9170 - 7113 emp@uni-bayreuth.de text Zootaxa 2022 2022-03-29 5120 4 451 481 journal article 20057 10.11646/zootaxa.5120.4.1 a960c9d2-4d41-478c-9409-45b574484345 1175-5326 6392707 B6FBF44E-78CB-4ACA-9F58-1174A9E59926 Acanthoplus speiseri Brancsik, 1895 References: Mbata 1992 , Bateman & Fleming 2013 Like the other species of the genus, A. speiseri has also a quite low number of stridulatory teeth in the left file (mean 28; Mbata 1992 ). The calling song is described as „uninterrupted buzz similar to that of other Acanthoplus species“ ( Bateman & Fleming 2013 ) without giving any detailed data. Chromosomes: The karyotype was studied by Mbata (2005) : 2n = 25 (24 + X0), FN = 26; pairs 1–12 and the X chromosome acrocentric.