Yalvaciana (Ciplak, Heller and Demirsoy, 2002)

Micropterous, tegmina as long as or longer than pronotum, but not reaching beyond the midpoint of the abdomen. Body large, heavy; colour black or dark brown. Head large and eyes spherical or oval. Pronotum dorsally depressed with median carina or keel present in the metazona. Males bear two processes on the tenth tergite. The apex or tip of the cercus is acute and; a tooth present in the proximal half. Female subgenital plate with two lobes. Ovipositor large and broad, black with light brownish base and weakly curved.

Key to known species of Yalvaciana

1) Tegmina as long as or shorter than pronotum. Male tenth tergite with two elongate and narrow processes. Female subgenital plate bilobate with a deep triangular incision................................. Yalvaciana . yalvaci (Ciplak et al., 2002)

- Tegmina longer than pronotum not extending beyond middle of abdomen. Male tenth tergite with short and broad triangular hirsute processes (Fig 5). Female subgenital plate bilobate, apex with obtusely rounded incision (Fig 8).............................................................................................. Yalvaciana . allowpora sp.nov.