Iduna opaca Cabanis, 1851

LITERATURE. — Green & Sayer (1979); Thonnérieux (1985); Holyoak & Seddon (1989); Thonnérieux et al. (1989); Dowsett (1993); Balanca & de Visscher (1997); Borrow & Demey (2001, 2014); Portier (2002c); Balanca et al. (2007); Sinclair & Ryan (2010); Pavia et al. (2012); Dowsett et al. (2013).

FIELD DATA. — eBird; GBIF; WABD; XC.

STATUS. — Palaearctic migrant.

REMARK. — All the former records of Iduna pallida (Hemprich & Ehrenberg, 1833) should be referred to as I. opaca, after the splitting of the two taxa (Ottosson et al. 2005).