Oppiella Jacot, 1937

Type-species: Eremaeus novus Oudemans, 1902

Diagnosis: Rostrum smooth or incised; a pair of well-developed costulae situated between lamellar and interlamellar setae present; sensilli usually fusiform, ciliate; setae c2 present; ten pairs of notogastral setae; notogastral cristae present; anterior edge of notogaster mostly encompassed by humeral process; genital plates with five pairs of setae; lyrifissures iad paraanal in position.

There are two subgenera of the genus Oppiella, Oppiella (Oppiella) Jacot, 1937 and Oppiella (Perspicuoppia) Pérez-Iñigo, 1971 . They can be distinguished by the following key.