Checklist of British and Irish Hymenoptera - Ichneumonidae Author Broad, Gavin R. text Biodiversity Data Journal 2016 4 9042 9042 http://dx.doi.org/10.3897/BDJ.4.e9042 journal article http://dx.doi.org/10.3897/BDJ.4.e9042 1314-2828--9042 Polyblastus (Labroctonus) stenocentrus Holmgren, 1857 albicoxa Thomson, 1883 Distribution England, Scotland, Isle of Man Notes Shaw and Kasparyan (2005) treat this as species separate from alternans Schiodte , 1838, of which it is listed as a subspecies by Yu and Horstmann (1997) .