Reappraisal of the Stachia-Stachiomella-Pseudostachia complex (Collembola: Odontellidae), redescriptions of Stachia minuta and Stachiomella oxfordia, and Stachia tasgola, new species

The three genera of Odontellidae lacking ocelli and tenaculum (Pseudostachia, Stachia, Stachiomella) are reappraised, and type specimens of Stachia minuta and Stachiomella oxfordia. are redescribed. All described Pseudostachia spp. are transferred to Stachia. Stachia tasgola, new species is described from North Carolina and Michigan.