New data on the calling songs of Gymnogryllus and Macrogryllus (Grylloidea, Gryllinae) from Sabah Author Tan, Ming Kai Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore. Author Damit, Dayang Fazrinah Binti Awg Forest Research Centre (Sepilok), Sabah Forestry Department, PO Box 1407, 90715 Sandakan, Sabah, Malaysia. Author Japir, Razy Forest Research Centre (Sepilok), Sabah Forestry Department, PO Box 1407, 90715 Sandakan, Sabah, Malaysia. Author Chung, Arthur Y. C. Forest Research Centre (Sepilok), Sabah Forestry Department, PO Box 1407, 90715 Sandakan, Sabah, Malaysia. Author Robillard, Tony Institut de Systématique, Evolution, Biodiversité (ISYEB), Muséum national d’Histoire naturelle, CNRS, SU, EPHE-PSL, UA, 57 rue Cuvier, CP 50, 75231 Paris Cedex 05, France. text Zootaxa 2025 2025-09-11 5692 1 108 120 https://doi.org/10.11646/zootaxa.5692.1.5 journal article 312588 10.11646/zootaxa.5692.1.5 0454bae9-6947-420b-91d6-043b510a3f97 1175-5326 17322249 9E061116-A4A9-453A-A4DE-B5942508BD52

TABLE 1. Call parameters of six taxa of Macrogryllus and Gymnogryllus from Sabah. * No specimen was collected.

Taxon	Syllable duration (ms)	Syllable interval (ms)	Syllable period (ms)	Dominant freq. (kHz)	Temperature (°C)
Macrogryllus canorus	10.9±0.7 (10.1–12.7)	4.0±0.6 (2.6–4.9)	14.9±0.4 (14.0–15.7)	2.16	23.3
Macrogryllus ephippium	5.9±0.6 (5.0–7.1)	3.9±0.6 (2.6–4.7)	9.8±0.2 (9.5–10.2)	2.72±0.02 (2.62–2.73)	25.1
Gymnogryllus from Maliau*	24.3±1.3 (22.1–25.8)	26.4±1.5 (22.7–28.9)	50.7±0.8 (48.2–51.8)	4.03	25.1
Gymnogryllus from Meligan*	8.3±1.1 (6.2–11.7)	5.3±1.0 (2.1–6.9)	13.6±0.4 (12.7–14.4)	4.03	23.6
Gymnogryllus borneensis	6.2±0.2 (5.8–6.7)	4.6±0.5 (3.6–5.7)	10.8±0.4 (9.9–11.8)	3.93±0.09 (3.84–4.03)	25.0
Gymnogryllus cf. unexpectus trusmadi*	9.0±0.3 (8.3–9.4)	4.4±0.3 (3.9–5.2)	13.4±0.2 (13.0–14.0)	4.03	29.0