Integrative taxonomic revision and review of the bioacoustics of the cricket genus Eneoptera (Orthoptera, Gryllidae, Eneopterinae) Author Robillard, Tony 0000-0002-2177-9549 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 tony.robillard@mnhn.fr Author Benavides-Lopez, Jose Luis 0000-0002-8715-1332 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 & Departamento de Ciencias Biológicas DCB, Universidad de los Andes, Carrera 1 No. 18 A- 12 Of. A _ 307, Bogotá D. C., Colombia j.benavideslopez@uniandes.edu.co Author Tan, Ming Kai 0000-0002-4324-6305 Lee Kong Chian Natural History Museum, Faculty of Science, National University of Singapore, 2 Conservatory Drive, Singapore 117377, Republic of Singapore orthoptera.mingkai@gmail.com Author Sperber, Carlos Frankl 0000-0002-0334-7216 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 & General Biology Department, Federal University of Viçosa (Departamento de Biologia Geral, Universidade Federal de Viçosa), Avenida Peter Henri Rolfs, s / n. 36570 - 900 Viçosa, MG, Brazil & 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 sperber@ufv.br text Zootaxa 2026 2026-03-04 5763 3 301 327 https://doi.org/10.11646/zootaxa.5763.3.1 journal article 314992 10.11646/zootaxa.5763.3.1 5af8c898-f01b-4606-9ac2-1681c98b1c32 1175-5326 19191605 9D7B5723-70C6-4964-B455-7AA9FB0A3FED

TABLE 2. Functional variables of the sound production mechanisms. Values in brackets correspond to crests of double teeth if considered as separated teeth in terms of sound production mechanism.

	Total file length (mm)	No. of teeth (total)	No. of teeth used (estimated)	Tooth density (No./mm)	Total distance used (mm)	Average tooth distance (μm)	Tooth strike rate (TSR) (strikes/s)	Syllable duration (ms)	Candidate fundamental frequency (kHz)	Global speed from syllable duration (mm/s)	Instantaneous speed from frequency (mm/s)
E. nigripedis
Simple teeth section	0.89±0.04	40.5	24	45.5	0.421	21.1±3.6	4898	4.8±1.1	3.64	87.7	76.7
Double teeth section	1.05±0.05	54 [108]	32 [64]	51.3 [102.6]	0.641	16.6 [8.3±0])	6 530 [13 060]	4.9±1.1	L: 3.64 H: 17.5*	130.7	L: 30.2 H:145.4
E. guyanensis
Simple teeth section	1.20	58	14.7±0.7	45	0.33	22.14	4083	3.6± 0.4	3.83±0.04	92	85
Double teeth section	1.15	57	26.4±3.8 [52.7±7.6]	54.6 [109]	0.48	18.3 [9.17]	9778 [19518]	2.7±0.5	19.99±0.09	179	183
E. surinamensis	1.97±0.20	71±0	21	35.8±3.2	0.784	35.6±0.7	3845±1104	L: 6.5±1.4 H: 5.7±0.9	L: 3.31 H: 3.77	L: 123 H: 139	108.9
E. caliginosa	1.81±0.0	64±1	26.5±0.7	35.4±0.7	0.814±0.06	29.6±1.4	3363.6±285.3	7.9±0.5	3.36±0.29	109.5	103.6