Genus: Oppiella Jacot, 1937

(From: Miko 2006)

Type: Eremaeus novus Oudemans, 1902

Diagnosis. Small to medium size; rostrum smooth or dentate; costula present, absent, or reduced to bothridial costulae between interlamellar setae and bothridium; interbothridial tubercles posterior to interlamellar setae present; postbothridial tubercle present; sensillus spindle-, clubshaped, lanceolate or fusiform, often covered with bristles or branches; anterior notogastral edge straight or arcuate, with a notogastral keel or ridge; crista present or absent; ten pairs of notogastral setae present (including c 2); lyrifissure iad paraanal; one pair aggenital, two pairs anal, two to three pairs of adanal setae, four to six pairs of genital setae.

Remarks. Subgenus Oppiella (Moritzoppia) Subías & Rodríguez, 1988 has four pairs of genital setae and costula on the prodorsum (Miko 2006). Oppiella (Rhinoppia) Balogh, 1983 has absent or reduced costula and six pairs of genital setae (Miko 2006). Therefore, a new subgenus Oppiella (Quattoppiella) subgen. nov. is erected with four pairs of genital setae and absent costula.