A revision of the genus Heteroparasitus new status, with the description of Heteroparasitus (Medioparasitus) athiasae subgen. n., sp. n. from Spain and with a key to the genera of Pergamasinae (Acari, Gamasida, Parasitidae). Revue Suisse de Zoologie, 109(1), Mars 2002: 23-46. 32 [Zoological Record Volume 138]