Hapljapyx is a genus of diplurans in the family Japygidae.
Haplijapyx are typical Diplurans. They are small, white, eyeless, entognathous hexapoda with moniliform antennae. They have two abdominal, pincer-like cerci so they are often mistaken for earwigs ( Dermaptera) but earwigs have eyes. Hapljapyx are described as the most robust members of the family Japygidae.