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A new chigger mite Chiroptella baliensis n. sp. is described based on material from the diadem leaf-nosed bat Hipposideros diadema (Geoffroy) (Hipposideridae) in Bali Island (Lesser Sunda Islands, East Indonesia). With this newly described species, the genus Chiroptella includes 22 species, 13 in the subgenus Chiroptella Vercammen-Grandjean, 1960 (sensu stricto), and 9 in the subgenus Neosomia Vercammen-Grandjean, 1968. Species of Chiroptella are distributed throughout the Ethiopian region, the Oriental region, and the Australian region (and only marginally throughout the Palaearctic region) and are all associated with several families of bats. The paper also provides a key to all members of the genus and the new combinations for two species originally described as Chiroptella.

A new species of chigger mite, Rudnicula goffi n. sp., is described from the diadem leaf-nosed bat Hipposideros diadema (Geoffroy) (Hipposideridae) caught in the Goa Peteng Cave on Bali (Indonesia). The new species differs from the closely related species by the presence of scutum with AL windows, lateral scutal margins with cuticular striations and fSt = 2 + 2 + 2. A list of all available records of Rudnicula species is provided. The genus is restricted to the tropics of Southeast Asia, Australia, Melanesia, and the subtropics of eastern Asia. A key to the known species of Rudnicula based on the morphology of the larvae is also provided.