Crickets of New Caledonia (Insecta, Orthoptera, Grylloidea): a key to genera, with diagnoses of extant genera and descriptions of new taxa Author Desutter-Grandcolas, Laure Institut de Systématique, Évolution et Biodiversité, ISYEB - UMR 7205 CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, case postale 50, 57 rue Cuvier, F- 75231 Paris cedex 05 (France) desutter @ mnhn. fr desutter@mnhn.fr Author Anso, Jérémy Institut de Systématique, Évolution et Biodiversité, ISYEB - UMR 7205 CNRS, MNHN, UPMC, EPHE, Muséum national d’Histoire naturelle, Sorbonne Universités, case postale 50, 57 rue Cuvier, F- 75231 Paris cedex 05 (France) and Institut méditerranéen de Biodiversité et d’Écologie marine et continentale (IMBE), Aix-Marseille Université, UMR CNRS, IRD, UAPV, Centre IRD Nouméa, BP A 5, 98848 Nouméa Cedex, (Nouvelle-Calédonie) Author Jourdan, Hervé Institut méditerranéen de Biodiversité et d’Écologie marine et continentale (IMBE), Aix-Marseille Université, UMR CNRS, IRD, UAPV, Centre IRD Nouméa, boîte postale A 5, 98848 Nouméa Cedex (Nouvelle-Calédonie) Published on 30 December 2016 text Zoosystema 2016 2016-12-30 38 4 405 452 http://dx.doi.org/10.5252/z2016n4a1 journal article 10.5252/z2016n4a1 1638-9387 4578278 urn:lsid:zoobank.org:pub:9E796669-C345-42D6-B0F9-95288DB701EE Oecanthus rufescens Serville, 1839 (Fig. 16) Oecanthus rufescens Serville, 1839: 361 . TYPE LOCALITY. — India , Bombay . RECORDED SPECIMENS. — New Caledonia , Mont Mou, 1 ♂ , 16.VII.2012 , by night, tall grass along trail, J. Anso & L. Desutter- Grandcolas (MNHN). FIG. 15. — New Caledonian Euscyrtinae Gorochov,1985 ( A ), Oecanthinae Blanchard,1845 ( B ) and Eneopterinae Saussure,1874 ( C -F ) ( Gryllidae ): A , Proturana sp., from Sarramea, by day (Photo PG); B , Oecanthus rufescens Serville, 1839 , from Col des Roussettes, by night (Photo JA); C , Cardiodactylus novaeguineae (de Haan, 1842) , from Lifou (Loyalty Islands), by night (Photo PG); D , Agnotecous sp., from Col de Mouirange, by day (Photo LDG); E , Lebinthus lifouensis Desutter- Grandcolas, 1997, from Lifou, by day (Photo PG); F , Pixibinthus sonicus Anso & Robillard, 2016 , from Col de la Madeleine, by day (Photo JA). Scale bars: 2 mm. CALLING SONG. — Fig. 16. At 23.5°C, the calling song of Oecanthus rufescens consists of a long repetition of syllables (trill), with the following characteristics: syllable duration = 14.9 ± 0.3 ms; syllable period = 22.5 ± 1.6 ms; silence inter-syllable = 7.6 ± 1.6 ms; syllable duty cycle = 66.4 %; the dominant frequency is 3.3 kHz and correspond to the fundamental frequency (MNHN-SO-2016-19).