Liara (Acanthocoryphus) brevis Ingrisch, 1998

(Fig. 4)

Material: 1 nymph, CHINA, Hainan, Qiongzhong, Wuzhishan, 22-iii-2019, coll. HE Zhu-Qing, emergence in v- 2019 (ECNU) .

Diagnosis. No morphological differences between Chinese and Vietnamese individuals including male cercus, tympana and other features (Fig. 4D ~F) have been observed. Apex of fastigium verticis gently bending to the left (Fig. 4B, D). Considering this individual was fed since nymph stage, no molt problem or injured made this malformation. Figures of holotype and paratype photographed by Ingrisch (OSF) also show same tendency of left bending. Thus, we believed this feature is spontaneous.

Coloration. Overall colour yellow. Frons brown, mandibles black, pronotal disc with two lateral dark brown bands, variable in extension, in anterior area of disc subfused to a single band, which is split by a light line at base and interrupted by two light spots. Tegmen with brown mirror, apical field with some black spots, femora with green in dorsal area and fore femur with red in ventral area (Fig. 4A & B).

Measurements.

Male: body 24.40, pronotum 6.68, tegmen 6.86, postfemur 11.26.

Biology. Above specimens is a small nymph collected on sedge. It was yellow with black lines from head to abdomen (Fig. 4C). It was reared on vegetables and Chinese bird feed until adult. Calling song continues about 1.508±0.105 seconds with 0.099±0.009 seconds interval (Fig. 4G), 67±4.5 pulses in each chirps in 45.12±0.48 pulses/s rate (Fig. 4H).