Varitrella (Cantotrella) suikei Tan, Japir & Chung, 2020

(Figs 15, 16)

Varitrella (Cantotrella) suikei – Tan et al., 2020: 264

Material examined. Holotype: EAST MALAYSIA • ♂; Sabah State, Sandakan, Sepilok, Kabili Sepilok Forest Reserve; N5.86985, E117.93805, 69.8± 7.7 m.a.s.l.; 1 October 2019; on a foliage; coll. M.K. Tan, R. Japir & J. Lee Yukang; SDK.19.78 (FRC)

Other material examined: EAST MALAYSIA • 1♂; Sabah State, Sandakan, Sepilok, Rainforest Discovery Centre; N5.87435, E117.94205, 49.9± 5.7 m.a.s.l.; 17 May 2022, 20h17; among the branch and foliage, feeding on the fruits of Leea; coll. M.K. Tan & T. Robillard; SBH.22.132 (MNHN)

Remarks. This represents the second specimen for this species, having been previously described by a single holotype. The male resembles the holotype but we also illustrated the spermatophore (Fig. 15C).

Ecology. The recently collected specimen was observed to feed on the fruits of Leea, but it probably also fed on the flowers and leaves of this common plant at the Rainforest Discovery Centre (Fig. 16).

Distribution. Known only from the type locality, Sepilok (Borneo, Sabah State).

Calling song. The calling song of the holotype was described in Tan et al. (2020). The call structure and call parameters of Varitrella (Cantotrella) suikei are distinct from those of Varitrella (Cantotrella) tabin sp. nov.: the former consists of irregular trill instead of well-defined echeme-sequences (even though each echeme is made up of two syllables). The echeme and syllable durations of Varitrella (Cantotrella) suikei are shorter in duration; and the dominant frequency is slightly higher.