Crickets of the subfamily Eneopterinae (Orthoptera: Grylloidea) from Sandakan, Sabah: one new species and calling songs of a sympatric species Author Tan, Ming Kai Author Japir, Razy Author Chung, Arthur Y. C. Author Robillard, Tony text Zootaxa 2019 2019-06-19 4619 2 347 363 journal article 26448 10.11646/zootaxa.4619.2.9 1e87ced1-1631-463d-92d4-508d30dbbc48 1175-5326 3249675 6268CC00-B103-4110-BDE5-AF539836DB86 Cardiodactylus borneoe Robillard & Gorochov, 2014 ( Figs. 11 , 12 ) Robillard et al. , 2014: 12 ; Dong et al. , 2018: 6 (molecular phylogeny); Cigliano et al. , 2019 ( Orthoptera Species File). Material examined: Malaysia , Sabah , Sandakan , Rainforest Discovery Centre , 1 female ( SDK .19.6), N5.87410 , E117.94366 , 50.2± 5.1 m .a.s.l., 8 January 2019 , 2102 hours, on foliage, coll. M. K. Tan & S. T. Toh ( ZRC ) ; 1 female ( SDK .19.21, Fig. 11A ) N5.87542 , E117.94231 , 31.1± 4.8 m .a.s.l., 9 January 2019 , 1930 hours, on foliage, coll. M. K. Tan , R. Japir , Momin Binti & J. Y. Lee ( FRC ) ; 1 male ( SDK .19.36, Figs. 9 B–9D), N5.87547 , E117.94110 , 34.1± 5.4 m .a.s.l., 9 January 2019 , 2046 hours, under foliage calling, coll. M. K. Tan , R. Japir , Momin Binti & J. Y. Lee ( ZRC ) . FIGURE 7. Lebinthus sandakan sp. nov. males in their natural microhabitats when alive. Holotype is (B). FIGURE 8. Lebinthus sandakan sp. nov. females in their natural microhabitats when alive. FIGURE 9. Lebinthus sandakan sp. nov. juveniles in their natural microhabitats when alive. FIGURE 10. Calling song of Lebinthus sandakan sp. nov. of paratype: oscillogram of 1 echeme (A), detailed oscillogram of trill part of echeme (B) and corresponding spectrogram (C); power spectra of beginning of syllable (D), of ending part of syllable (E). FIGURE 11. Cardiodactylus borneoe Robillard & Gorochov, 2014 from Sandakan: female in its natural microhabitat when alive (A); male genitalia in dorsal (B), ventral (C) and lateral (D) views. FIGURE 12. Calling song of Cardiodactylus borneoe Robillard & Gorochov, 2014 from Sandakan: oscillogram of 3 echemes (A), detailed oscillogram of 1 echeme (B), spectrogram of 1 echeme (C), power spectrum (D). Calling song ( Fig. 12 ): At 28.4°C and RH 74%, the calling song of C. borneoe consists of doublets (or rarely triplets) of long syllables including strong amplitude modulation forming pulse-like structures. Echemes (doublet) last 660 ± 75 ms with a period of 3.5 ± 1.2 s. Within doublets, syllables last 196 ± 43 ms, with a period of 372 ± 47 ms. Dominant frequency value is 17.6 ± 0.4 kHz with no clear harmonic structure. Habitat and life history traits. C. borneoe inhabits the dipterocarp forest in Sandakan and is typically found on or under the foliage of tree sapling or shrub at night. Remark. The calling song of C. borneoe differs from that of Cardiodactylus admirabilis Tan & Robillard, 2014 from Singapore by consisting of doublets with longer echeme duration (instead of triplets with shorter echeme duration of 205.6 ms) and higher dominant frequency (instead of 14.3 kHz). This is despite of the similarities in the morphology and genitalia of these two species. Another morphologically similar species is Cardiodactylus thailandia Robillard, 2011 from Thailand but its song is unknown.