Checklist of British and Irish Hymenoptera - Sawflies, ' Symphyta' Author Liston, Andrew D. Author Knight, Guy T. Author Sheppard, David A. Author Broad, Gavin R. Author Livermore, Laurence text Biodiversity Data Journal 2014 2 1168 1168 http://dx.doi.org/10.3897/BDJ.2.e1168 journal article http://dx.doi.org/10.3897/BDJ.2.e1168 1314-2828--1168 3C3EC7B09BA145848E3E89CBBD28B432 3C3EC7B09BA145848E3E89CBBD28B432 Pristiphora (Sharliphora) nigella ( Foerster , 1854) Nematus nigellus Foerster , 1854 Tenthredo ambigua ( Fallen , 1808, Tenthredo ) preocc. Nematus furvescens (Cameron, 1876, Nematus ) Distribution England, Scotland, Ireland