Majialandrevus He, 2021

Liu, Yi-Jiao, Xu, Jing-Yi & He, Zhu-Qing, 2021, Report of a new genus Majialandrevus, with a new species M. dingguo from Western Yunnan, China (Orthoptera: Gryllidae: Landrevinae), Zootaxa 4985 (1), pp. 137-141 : 138

genus Majialandrevus He gen. nov.

Type species: Majialandrevus dingguo He sp. nov.

Include species: type only.

Diagnosis. The new genus differs from other genera by a combination of the following characters: short forewings, but slightly longer than pronotum ( Fig. 2A ); with only outer tympanum ( Fig. 2D ); blunt distal parts of the male genitalia, absent of medial lobes of epiphallus, ectoparamere membranous; abdomen pubescent with cercus long. The ratio of the forewing lengths to the pronotal lengths is 1.19–1.22, which is most similar to 1.29 of Apiotarsoides Chopard, 1931 . However, its structures of the male genitalia differ from Apiotarsoides , and other similar genera, such as Duolandrevus Kirby, 1906 , Vasilia Grochov, 1988 , Ectodrelanva Grochov, 2000 from adjacent areas in lacking ramus.

Etymology. The genus name majia- is for the Chinese phonetic alphabet Ḽm, which means a style of Chinese clothing like a waistcoat. It is used to emphasize its short forewing.

Figures

FIGURE 2. Majialandrevus dingguo sp. nov. A: dorsal view of head and pronotum of male, B: female, C: anal plate of male, D: tympana, E: genitalia in dorsal view, F: ventral view, G: lateral view.