Revision of the genus paratylenchus micoletzky, 1922, and descriptions of new species. Part I of 3 parts.

A revision of part of the genus Paratylenchus is reported covering those species with stylets averaging < 22 mum. Thirteen new species are described and further observations are given on the morphology and relationships of nine other species. Paratylenchus gahriciis transferred to the genus Hemicriconemoides. This article is the first of three parts: the second will treat Paratylenchus spp. with stylets averaging 24-40 mum (and include a key to the species described in parts 1 and2), the third will include species with stylets >40mum, respectively.