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 Prociphilus (Prociphilus) bumeliae (Schrank, 1801) Fig. 40 Diagnosis Apterae about 2.9 mm , covered with wax wool. Two pairs of wax gland plates on head, of which the posterior ones better developed than the anterior. A narrow pale subapical zone on RIV+V present. Diagnosis based on Heie (2004) . Holocyclic and dioecious, alternating between ash Fraxinus excelsior (sometimes other Oleaceae such as Ligustrum and Syringa ) and Abies , where it feeds in wax-covered colonies on the roots. Not ant-attended. Recorded secondary hosts Pinaceae : Abies alba , veitchii , spp. Distribution D F S.