* Eupithecia pusillata ([Denis & Schiffermüller], 1775)

Geometra pusillata [Denis & Schiffermüller], 1775, Systematische Verzeichnis der Schmetterlinge der Wienergegend: 110. Syntype (s) lost. [Austria]: Vienna district.

Eupithecia masuii Inoue, 1980, Bulletin of the Faculty of Domestic Science, Otsuma Women's University 16: 158, fig. 35: D; fig. 38: B; figs 39: J–K; fig. 42: E. Holotype ♂ (coll. H. Inoue in BMNH, examined), [Japan]: Kagawa Pref(ecture), Takamatsu, Mt. Iwaseo (synonymised in Mironov & Galsworthy, 2010).

Misidentification: Eupithecia ericeata: sensu Vojnits, 1977 (nec Rambur, 1833).

A widespread Palaearctic species ranging from the Canary Islands to Japan and the Kamtchatka Peninsula. Not previously recorded from Mongolia. Vojnits (1977) misidentified and published specimens of this species from Mongolia as E. ericeata . Mongolia: Bulgan aimag.