Dicyrtomidae is a family of Collembola in the order Symphypleona, and it is the only family of the superfamily Dicyrtomoidea. It includes more than 200 species in eight genera.

Ptenothrix is a genus of globular springtails in the family Dicyrtomidae. There are about 92 described species in Ptenothrix worldwide. The genus is defined by a cluster of traits, most pertaining to