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 (Adelges) laricis Vallot, 1836 Figs 58–61 Diagnosis Neosistens: About 0.3 mm , brownish black, without wax secretion. Dorsal plates of head and thorax fused. Dorsum heavily sclerotised and somewhat wrinkled. Adult aptera oval or sub-circular, blackish or dark grey, about 1 mm ., usually with wax wool. Alata 1.0– 1.5 mm , head with anterior and posterior wax gland areas, if present, usually separate. Al. gallicola (migrating from Picea ) with poorly developed wax secretion. Holocyclic and dioecious, alternating between Picea (p. 9) and Larix . On Larix overwintering at bud bases or in bark crevices on twigs and branches. In spring and summer on needles. Not antattended. Recorded secondary hosts Pinaceae : Larix decidua * , decidua x kaempferi , gmelinii , kaempferi * , laricina * , lyallii * , sibirica *, spp. Distribution D F N S.