| abstract | This paper deals with Trombidiform acari collected from Brasil and Paraguay. The following families are represented: Eriophyidae, Tarsojnemidae, Pyemotidae, Scutacaridae, Podapolipodidae, Tydeidae, Tetranychidae, Tenuipalpidae, Raphignathidae, Stigmaeidae, Caligonellidae, Cryptognathidae, Cheyletidae, Pterygosomidae and Pseudocheylidae. |