Male advertisement call of the M. berdmorei species complex members, showing a 8 s waveform of relative amplitude (Rel. amp., above), the corresponding spectrogram of the same call (Spec., middle), and expanded 3.6 s waveform of relative amplitude of the same call (Exp. Rel. amp., below) for each species. A M. berdmorei from Aizawl, Mizoram State, India; B M. malcolmi from Song Hinh Forest Reserve, Phu Yen Province, Vietnam; C M. sundaica sp. nov. from Gunung Jerai Mt., Kedah State, Peninsular Malaysia.