Chaetotaxie und Porotaxie bei Geholaspis mandibularis (Berlese 1904) und Geholaspis longispinosus (Kramer 1876) (Parasitiformes: Trichopygidiinae). - The chaetotaxy and porotaxy of Geholaspis mandibularis and Geholaspis longispinosus are discussed according to VALLE 1953 and compared with chaetotaxy and porotaxy according to HIRSCHMANN. The setae i4, 14, Z4, Z2, S2 change their position during the development from protonymph to deuteronymph and to fei nale. They ’wander’ into the places without setae, that in case of holotrichous mite are usually filled by Il, 12, 13, Zl, SI. This fact is explained by the diverses relations between the positions of the setae and pores.