Schraderiellus Rider, 1998

The genus can be recognized by having an anteapical tooth on the lateral margins of each mandibular plate; the ventral rim of the pygophore is not visible in dorsal view, and its base of the posterolateral angles has a pair of projections with tuft of setae, and the posterolateral angles of the pygophore have a basal dorsal excavation (Roell & Campos 2018).