Descriptions of a new genus Orientilimnesia (Hydrachnidia: Limnesiidae Thor, 1900) with a new species from China

摘要

One new genus, Orientilimnesia gen. no v., and a new species, O. sinuata sp. nov., in the family Limnesiidae Thor, 1900 are described from Guizhou and Fujian, China. There are twelve species of limnesiid water mites described from China by Marshall (1928), Uchida (1935, 1941), Uchida & Imamura (1951), Jin (1997), Wen & Zhu (2001) and Wen et al. (2001). They belong to a single genus Limnesia Koch, 1836: Limnesia maculata (Miiller, 1776), L. undulata (Müller, 1776), L. koenikei Piersig, 1894, L. lembangensis Piersig, 1906, L. neokoenikei Jin, 1997, L. rimiformis Jin, 1997, L. anomalía Jin, 1997, L. crassignatha Jin, 1997, L. paracorpulenta Jin, 1997, L.falcata Jin, 1997 and L. trifurcata Wen, et al., 2001 and L. microplatus Wen & Zhu, 2001. A new genus, which is remarkably differentiated from the known genera of the family Limnesiidae, and a new species are described from China in this paper.