Winterschmidtiidae is a family of mites in the order Astigmata.

[1][2] The four subfamilies of Winterschmidtiidae have different habits: Ensliniellinae are associated with Hymenoptera; Winterschmidtiinae with wood-boring insects; Saproglyphinae with decaying materials, plant leaves and fungi; and Oulenziinae with leaves, vertebrate nests and stored foods.

They are mostly detritivorous, though most Winterschmidtiinae are instead fungivorous and a few species are herbivorous.

[3] For some specific examples, species of Winterschmidtia and Parawinterschmidtia are associated with beetles living under bark (especially bark beetles), Vespacarus and Kennethiella with eumenine wasps and Vidia with Megachile bees.

[5] These twenty-eight genera belong to the family Winterschmidtiidae:[6]