A new species of Antennoseius (Vitzthumia) Thor (Acari: Mesostigmata: Ascidae) from China, with a key to species of the genus recorded from China

The subgenus Antennoseius (Vitzthumia) Thor, 1930 is recorded from China for the first time by description of a new species, Antennoseius (Vitzthumia) heterochaetus Long & Yi n. sp. that was collected from leaf litter of subtropical forest in Sichuan Province, China. The new species can be distinguished from other members of the subgenus by podonotal shield with four pairs of spur-like setae (j2–j4, z2), j1 short and barbed distally, setae av1 on trochanters III and IV slightly swollen with fine distal tip. The holotype of Antennoseius ningxiaensis Bai & Ma, 2006 was examined and because the leg I avoid pretarsus and claws and also tibia III bear eight setae, the species distinguished as a member of the subgenus Antennoseius (Antennoseius). A key to Chinese species of the genus Antennoseius is given.