in 20 genera in our area, close to 700 spp. in ~40 genera worldwide(2)
worldwide and throughout NA(2)
Our only representative of the superfamily Hypogastruroidea, that also includes a monotypic Afrotropical family.(2)
Some Hypogastrura (generally bluish) and Ceratophysella (generally more purplish) species form conspicuous mass aggregations.