As a result of 40 years of work and many projects on soil fauna and especially springtails, a collection of edaphic microarthropods has been established at the Facultad de Ciencias, UNAM, and has the name of "Colecci & oacute;n de & aacute;caros y col & eacute;mbolos del Laboratorio de Ecolog & iacute;a y Sistem & aacute;tica de Microartr & oacute;podos". During the revision of material belonging to the subfamily Pseudachorutinae kept in the Collembola collection, we obtained 581 records of 28 species of Pseudachorutes, , from 20 states and 62 localities from Mexico. Three are new records: P. ca. algidensis, , P. ca. crassus, , and P. reductus, , and 5 new species from soil, litter and epiphytic plants in Mexico are described and illustrated herein: P. tabasquensis sp. nov., P. mexicanus sp. nov., P. chichinautzin sp. nov., P. tillandsiodes sp. nov., and P. veracruzensis sp. nov.