(1873), Eunepenthes Hook.f. (1873) and Mesonepenthes Harms (1936) (Latin: meso: middle; "middle" Nepenthes).
The genus *Eunepenthes* was first described in 1873 by Hook.f., while *Mesonepenthes* was later defined in 1936 by Harms, both of which are part of the *Nepenthes* family (Latin: meso: middle; "middle" Nepenthes).