Repapa denticulata Gorochov, 2016

Repapa denticulata Gorochov, 2016 View in CoL

( Figs 2D, 2E View FIGURE 2 , 9 View FIGURE 9 , 10 View FIGURE 10 )

Repapa denticulata Gorochov, 2016: 74 View in CoL .

New material examined. EAST MALAYSIA; Sabah State • 1♂; Maliau Basin Conservation Area, at Agathis Camp along Agathis Nature Trail ; N4.70048 E116.90703, 552.1± 11.2 m.a.s.l.; 16 November 2024, 20h24; calling under bark of trunk; coll. M.K. Tan; SBH.24.117 ( ZRC) GoogleMaps • 2♂; Maliau Basin Conservation Area , at Maliau Basin Studies Centre along Knowledge Trail (start) (24SA4); N4.74189 E116.97062, 227 m; 10–18 November 2024, night; on tree trunk (TR24-33) or on dead trunk (TR24-81); coll. T. Robillard; TR24-33, TR24-81 ( MNHN) GoogleMaps .

Remarks. Our specimens from Maliau Basin differ slightly from the type by the pseudepiphallic lophi in dorsal view at apex more widely expanded and not pointing externally, and in lateral view slightly less slender as in R. denticulata .

Distribution. EAST MALAYSIA: Sabah State: Tawau Hills National Park ( type locality), Maliau Basin [new locality record].

Calling song ( 1♂, in captivity, 28.7°C) ( Fig. 10 View FIGURE 10 ). The calling song consists of an echeme with a highly variable number of isolated syllables, ranging from 10 to 68. Consequently, the echeme duration can be variable, ranging from 0.51– 3.53 s. On average, the echeme duration is 1.25± 0.76 s and the average number of syllables is 24±14. The first few syllables sometimes are of slightly lower amplitudes or of shorter durations, but these parameters eventually remain relatively consistent. Each syllable has an average duration of 16.1±4.6 ms (9.8–22.0 ms), the interval between consecutive syllables is 38.9±5.9 ms (29.8–46.6 ms) and the average period is 55.0±2.8 ms (51.0– 61.8 ms). The frequency spectrum is pure-tonal and forms a harmonic series, with the energy peaking at a dominant and fundamental frequency of 5.47±0.11 kHz (5.34–5.72 kHz)