Bioacoustics of Yalvaciana

1) Tegmina longer than pronotum reaching before the half of abdomen............................................. 2 - Tegmina as long as or shorter than pronotum. Male last tergite with two long and narrow posterior processes. Female subgenital plate bilobate with a deep triangular incision................................. Yalvaciana . yalvaci (Ciplak et al ., 2002) 2) Male last tergite with short and wide triangular processes, stridulatory file short and broad ( Fig. S ), female subgenital plate as long as broad, bilobate, apex with obtusely rounded incision, titillators with spines on apical surface, basal surface smooth.................................................................. Yalvaciana . allowpora Shah & Usmani, 2021 - Male last tergite with two long cylindrical processes ( Fig J ), stridulatory file as in ( Fig T ), female subgenital plate as long as longer than broad and with small U shaped incision ( Fig G ), titillators with teeth on all surface ( Fig. K ).................................................................................................. Yalvaciana unal sp. nov.