Bioacoustics of Separatula araguaiensis

Description: Holotype male ( Fig. 11 , 12E ): Small to medium, yellowish with legs crimson ( Fig. 11A ). Head ( Fig. 11B, C ): Fastigium of the frons triangular with large base; ocellus on middle with reddish margins. Antennal sockets dilated at base; with reddish margins. Fastigium of the vertex hourglass shaped; globose at apex; sulcus on middle shallow, not reaching apex. Occiput, vertex, pedicel, scape and superior part of gena reddish. Thorax: Pronotal disc ( Fig. 11C ) crimson with a medial yellow stripe; anterior margin straight; furcal sulci bell-shaped; same width from anterior to posterior region. Lateral lobes ( Fig. 11D ) almost as long as pronotal disc, as long as wide; with reddish marks; anterior margin straight, posterior margin almost straight; humeral sinus presenting an angle of ca. 80º, very evident. Tegmina ( Fig. 12E ) shorter than hindwings; anal and costal margins parallel; Sc almost straight; R with none major bifurcations; M long, following R in all extension; MP leaving M before the middle of the tegmina; MA without bifurcations; CuA very long almost straight, with none bifurcations; stridulatory area and anal margin reddish ( Fig. 11F, G ). Mesobasisternum ( Fig. 11E ) a little elevated on middle; anterior margin almost straight; lateral lobes small, demilune shaped. Metabasisternum ( Fig. 11E ) triangular; anterior margin convex; lateral lobes demilune shaped, almost touching in the posterior margin. Abdomen: Tergite X with posterior margin straight; bearing two lateral processes, moderately curved upwards, spine like. Epiproct quite large; lateral proximal margin expanded; projected downwards in a triangular process. Cercus ( Fig. 11H, I ) moderately long, at least twice as long as lateral processes of tergite X; moderately curved inwards. Subgenital plate ( Fig. 11H, I ) longer than wide; posterior margin v-shaped; bearing two small styli. Genitalia ( Fig. 11J, K ): Phallus symmetrical, rounded, completely membranous; ejaculatory vesicles large, sub-oval; dorsal lobe larger than ventral lobe, tip cup-like.