Illustrated identification guide to the Nordic aphids feeding on Conifers (Pinophyta) (Insecta, Hemiptera, Sternorhyncha, Aphidomorpha) Author Albrecht, Anders Christian text European Journal of Taxonomy 2017 2017-07-24 338 1 160 journal article 22023 10.5852/ejt.2017.338 be9f3ab9-3131-4e11-8d29-a94275ffaac9 2118-9773 3834349 86786AB1-4A1A-4A1E-B42B-53B73D66ED60 Adelges (Dreyfusia) nordmannianae (Eckstein, 1890) Figs 45–46 Diagnosis Neosistens rather similar to those of A. pectinatae (see above), but wax ribbons thinner and more strongly curled, and spinal and pleural sclerites on mesothorax, metathorax and abdominal tergites 1–5 separate (although sometimes touching). Older sistentes and progredientes dark grey, embedded in fine, curly wax wool. Wax pore plates on inner margins of meso- and metathoracic spinal sclerites containing numerous small, mostly rounded, pits arranged in 2–4 areas of rather rounded shape, the most central area containing 7–12 pits. Found on bark, usually on young branches and twigs, single specimens occasionally on needles (my own record). Not ant-attended. Recorded secondary hosts Pinaceae : Abies alba * , balsamea , cephalonica , concolor , grandis , nordmanniana , procera , sibirica , veitchii , spp. Distribution D N S.