Exegetia crocea Braun, 1918, (Yponomeutoidea: Lyonetiidae), type species of Exegetia Braun, 1918, n. syn., is transferred to Pigritia Clemens, 1860 (Gelechioidea: Blastobasidae). Pigritia crocea (Braun, 1918), n. comb., is redescribed, and morphological evidence is provided in support of its new generic and familial assignment. A habitus image of the male holotype and illustrations of the male genitalia and wing venation of a conspecific male are included.