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 Pineus (Pineus) strobi (Hartig, 1837) Diagnosis Anholocyclic on Pinus strobus (see p. 31). Al. sexuparae lay eggs on of Picea mariana , but no sexuales are produced ( Blackman & Eastop 1994 ). A6 (A5) Abdomen (all morphs) with 5 pairs of evident spiracles (on abd. 2–6). Gall with separate chambers ...........................................................................................................................A7 A7 (A8) Wax glands of overwintering larvae with thin-walled facets secreting solid wax filaments; galls without protruding needles, hair or waxy bloom ......................................................... ....................................... Adelges ( Aphrastasia Börner, 1909 and Dreyfusia Börner, 1908 )