ABSTRACT
The article describes two new species of Trigonidiidae Saussure, 1874, namely Pteronemobius yuani Ma & Wang sp. nov. and Metiochodes tianfuensis Ma, Yuan & Gu sp. nov. The former belongs to Pteronemobius Jacobson, 1904, and is similar to Pteronemobius gifuensis (Shiraki, 1911) but has a long and narrow epiphallic median lobe, and the outer posterior tibia is armed with three dorsal spurs; while the latter belongs to Metiochodes Chopard, 1932, which is similar to Metiochodes flavescens Chopard, 1932, but the epiphallic median lobe is concave. Here, we describe and illustrate these new species.
Subject(s)
Gryllidae , Orthoptera , Animals , Animal Structures , Animal Distribution , Body Size , Organ Size , ChinaABSTRACT
We discovery two new species (Trigonidium nigripes sp. nov. and Pteronemobius luojishanensis sp. nov.) of Trigonidiidae (Orthoptera: Grylloidea) from Sichuan Province, China. T. nigripes sp. nov. is distinct by its tegmen slightly bulging smooth and black, bearing false veins, degraded hindwings and similar wing venation of male and female, and P. luojishanensis sp. nov., is distinguished by its male ectoparamere of genitalia bifurcated and epiphallus relatively short. These species are described and illustrated in this article.
Subject(s)
Gryllidae , Orchidaceae , Animal Structures , Animals , Body Size , China , Female , MaleABSTRACT
The abundance of insects in Burmese amber illustrates a highly diverse insect community of the mid-Cretaceous, but the records of crickets are relatively rare. Here, we erect two new genera with two new species, Birmanioecanthus haplostichus gen. et sp. nov. and Apiculatus cretaceus gen. et sp. nov., based on two new specimens from northern Myanmar amber. These new species can be assigned to the subfamily Oecanthinae (Orthoptera: Gryllidae) by their prognathous head, slender body and metatibiae, and protibiae with large tympana. These new findings are the first and earliest fossil record of tree crickets and shed light on the evolution of Oecanithinae.
ABSTRACT
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.
