Checklist of British and Irish Hymenoptera - Braconidae Author Broad, Gavin R. Author Shaw, Mark R. Author Godfray, H. Charles J. text Biodiversity Data Journal 2016 4 8151 8151 http://dx.doi.org/10.3897/BDJ.4.e8151 journal article http://dx.doi.org/10.3897/BDJ.4.e8151 1314-2828--8151 Phaedrotoma fallax ( Szepligeti , 1896) Opius fallax Szepligeti , 1896 Distribution England Notes Listed as a synonym of Opius instabilis in Taxapad ( Yu et al. 2012 ) but regarded as a valid species, in Phaedrotoma , by van Achterberg (in prep.).