mystecus Humbert & Saussure, 1869: 156-157 [Lithobius].

Mexico orientalis. Unspecified number of ♂ and ♀.

Saussure & Humbert (1872) gave a more detailed redescription, stating that they had five ♂ and three ♀. No specimens found in the MHNG or the NHMW.

Lithobius mystecus Humbert & Saussure, 1896