HypogastruroideaHypogastruroidea is a superfamily of springtails in the order Poduromorpha. There are at least 2 families and more than 700 described species in Hypogastruroidea.FamiliesThese two families belong to the superfamily Hypogastruroidea. Pachytullbergiidae is sometimes included in this superfamily, also. Hypogastruridae Börner, 1906 Paleotullbergiidae Stach, 1954