Latin, meaning 'of authors'. Usually used in conjunction with 'sensu', 'nec' or 'non' to indicate a misapplied name. Fannia lucidula (Zetterstedt, 1860) = F. glaucescens auct. nec (Zetterstedt, 1845): This indicates that various authors have previously misapplied the name glaucescens of Zetterstedt to the taxon described by Zetterstedt under the name lucidula.