Dugès’ caudatus is a Tenuipalpidae and not a Tydeidae (Acari)
André, H.M.  Descriptions of two new species of sand inhabitant Astigmata (Acari)
Fain, A.; Coineau, Y. and Andre, H.M.  The Micropsammidae. n. fam.of Acari Endeostigmata from fine sand
Coineau, Y. and Theron, P.