Abstract
Professor Daniel Laurentiaux studied in his state thesis several Carboniferous (Bashkirian—Moscovian) insects from Belgium and Germany, but these were never formally described except in his doctoral thesis. Among the Palaeodictyoptera, we redescribe the spilapterid Spilapterina nigra, the dictyoneurid Arltia occidentalis, and we discuss the graphiptilid Patteiskya bouckaerti Laurentiaux, 1958b. We also redescribe the paoliid Parafouquea belgica.