A new species of Ameroseius Berlese from Brazil, redescriptions of Ameroseius plumosus (Oudemans) and Ameroseius plumigera (Oudemans) (Acari: Mesostigmata: Ameroseiidae) based on the examination of type material.

AmeroseiusBerlese is the most numerous genus of family Ameroseiidae Evans (in Hughes 1961). Species of this genus have been reported from many regions around the world. A few species of this genus are known from Brazil.Ameroseius mineiroNarita, Bernardi and Moraes, sp. nov. is described based on the morphology of adult females and males collected from guano in caves of Minas Gerais State, Brazil. This is the secondAmeroseiusspecies described from Brazil. The holotypes ofAmeroseius plumosus(Oudemans) andAmeroseius plumigera(Oudemans) were examined, given their close similarity with the species described in this paper, and they are here redescribed. A key is provided to separate these and other most similar species.http://www.zoobank.org/urn:lsid:zoobank.org:pub:17A7D831-EC49-4D65-B06B-5E13EF52C696 [ABSTRACT FROM AUTHOR]