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) Fig. 6 Diagnosis Fund. juv. only with spinal and marginal wax pore plates; wax pore plates on inner margins of meso- and metathoracic spinal sclerites with numerous small pits arranged in 2–4 areas of rather rounded shape. Al. gallicola: 1.1–2.3 mm , wax glands on head and prothorax of granular appearance, without or with a few indistinct facets. Galls 7–15 mm , terminal, globular, red when young (resembling strawberries), later greenish with red or purple at bases and tips of scales. Holocyclic and dioecious, alternating between Picea orientalis and Abies (see also p. 20). Recorded primary hosts Pinaceae : Picea orientalis (usually), abies , omorika . Distribution D N S.