The genus Pseudasphondylia ( Diptera : Cecidomyiidae : Asphondyliini : Asphondyliina ) comprises ten Palearctic, Oriental and Australian species associated with various hosts belonging to at least ten plant families.
A new species, Pseudasphondylia tominagai Elsayed & Tokuda n. sp., that induces flower bud galls on Eleutherococcus spinosus (L.f.) S.Y.Hu ( Araliaceae ) is described. This species is considered to alternate between host plants seasonally. A key to males of known Pseudasphondylia species is provided.