Gigantolaelaps gilmorei Fonseca, 1939 (Acari: Laelapidae): taxonomic status, lectotype and paralectotype designation and new distributional records.

A lectotype series is designated for Gigantolaelaps gilmorei Fonseca, 1939 in the Acari Collection of the Instituto Butantan in Sao Paulo, Brazil. This laelapid mite species has a widespread geographical distribution. We report a close association with Oryzomys russatus (Wagner) in southeastern Brazil and Argentina, the most southerly part of its range. In Paraguay, the primary host is O. nitidus (Thomas).