Taxonomy of Landrevus species group of Velarifictorus Randell, 1964 (Orthoptera, Gryllidae, Gryllinae) with one new species and morphological diversity of Velarifictorusflavifrons Chopard, 1966

The Landrevus species group includes four Velarifictorus species that are related to Landrevinae crickets (Velarifictoruselephas Gorochov, 1992, Velarifictorusbubalus Gorochov, 1992, Velarifictorusgradifrons Ingrisch, 1998, and Velarifictoruslandrevus Ma, Qiao & Zhang, 2019). A new species of the group is discovered in the Yunnan Province of China, and it is described and illustrated here. Velarifictorusyunnanensis Liu & Yin, 1993 is recognized as a junior synonym of Velarifictorusflavifrons Chopard, 1966. The morphological variety of V.flavifrons ectoparamere is documented and studied.