Bioacoustics of Zebragryllus

1. Species with fore and mid legs black and white ............................................................................... 5 – Species without contrasted coloration on the fore and mid legs ...................................................... 2 2. Hind femora completely ochre, brown, dark brown, or blackish, but without white marks ............ 3 – Hind femora with only some whitish bands along its outer margin and close to its base .................. ....................................................................... Zebragryllus intermedius Desutter-Grandcolas, 2014 3. All femora ochre, tegmina short, not surpassing the fourth tergite .................................................. 4 – Fore and mid legs all blackish or dark brown. Tegmina well-developed, covering the subgenital plate tip ............................................................................................. Z. fuscus Desutter-Grandcolas, 2014 4. Tegmina without stridulatory apparatus .... Z. aphonus Tavares, Oya & Cadena-Castañeda sp. nov. – Tegmina with stridulatory apparatus .... Z. mebengokre Tavares, Oya & Cadena-Castañeda sp. nov. 5. Very small species with light ochre hindlegs, making the contrasted coloration less clear. Genitalia with lateral lophi hidden under pseudepiphallic sclerite .......... Z. nauta Desutter-Grandcolas, 2014 – Medium-sized species with a black and white ‘zebra’ pattern. Genitalia with lateral lophi not hidden under pseudepiphallic sclerite............................................................................................................ 6 6. Base of antennae brown (scape +about 30 antennomeres), followed by a short white ring of about ten antennomeres. Maxillary palpi dark brown, fourth joint white .................................................... ............................................................................................. Z. nouragui Desutter-Grandcolas, 2014 – Base of antennae white. Maxillary palpi dark brown, fourth joint lighter only dorso-basally ......... 7 7. Harp with 2–4 veins; genitalia with lophi ‘foliaceous’ ..... Z. guianensis Desutter-Grandcolas, 2014 – Male harp with two veins; genitalia with lophi sub-conical ............................................................... ............................................................ Z. wittoto Desutter-Grandcolas and Cadena-Castañeda, 2014