Genus Stolzia C. Willemse, 1930

Stolzia C. Willemse, 1930: 104, 117 (type species: Stolzia rubromaculata C. Willemse, 1930, by original designation); C. Willemse, 1956: 116; Hollis, 1975: 211; Otte, 1995: 338; Yin et al., 1996: 679; Li et al., 2006: 55; Storozhenko, 2020: 16.

Butonacris C. Willemse, 1933:118 (type species: Butonacris fasciata C. Willemse, 1933, by original designation); C. Willemse, 1938: 84; C. Willemse, 1956: 190; synonymized with Stolzia by Hollis (1975).

Description. Head in frontal view oval; frontal ridge broad, disappear below the lower margins of eyes, not reaching clypeus (Fig. 5). Face in lateral view slightly reclinated; frontal ridge weakly excised below lower margin of eyes (Fig. 2). Ventral genicular lobes of the hind femora triangular with distinct apical spine. Male 10th abdominal tergite with or without furculae. Male supra-anal plate triangular, with a median basal impression, lateral margins sometimes with a blunt tooth on each side near the apex. Male cerci surpassing the supra-anal plate, compressed, conical, with pointed apex, with or without teeth on the inner side. Valves of ovipositor short, with apex rounded and strongly dentate. Male genitalia: epiphallus with broad bridge and large ancorae (Figs. 16–18); the shape of other parts of genitalia unknown.

Species included. The genus consists of six species distributed over the Greater Sunda Islands (Java, Sumatra, Sulawesi, and Borneo) .