La neotrichie chez les oribates (acariens). - А review оп the neotrichy in Oribatid mites is given. All the genera аге studied. The body regions presenting this progressive evolution аге, in order of importance: aggenital region; epimeric region; notogaster; genital region; adanal region; anal region and infracapitulum. Neotrichy is а secondary phenomenon. However it mоге frequently concerns the lower oribatids than the higher oribatids. Gastronotic neotrichy is frequent chiefly in Lohmannoidea and Ctenacaroidea; aggenital neotrichy in Eupheredermes and genital neotrichy in Nothroidea.