Adelges (Adelges) laricis Vallot 1836
| Autor: | Albrecht, Anders Christian |
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| Rok vydání: | 2017 |
| Předmět: | |
| DOI: | 10.5281/zenodo.3851514 |
| Popis: | Adelges (Adelges) laricis Vallot, 1836 Figs 8���9 Diagnosis Fundatrix about 2.5 mm, blue-green with long wax filaments. Al. gallicolae 1���2 mm, blackish, wax glands poorly developed, premarginal glands absent, wax wool sparsely produced; head with 4 separate wax gland plates; ant. III shorter than IV. Galls 5���15 mm, pale yellowish with a waxy texture, often with a slight pinkish tinge, widely dispersed, usually singly on their branch; terminal or with very restricted plant growth beyond the gall; chambers not completely closed: nymphs often seen on outer gall surface. Galls opening in June���July. Holocyclic and dioecious, alternating between Picea and Larix (see also p. 24). Mixed spruce forests, rarely in moist or shady positions, also on solitary trees. Recorded primary hosts Pinaceae: Picea abies *, glauca, koraiensis, mariana, orientalis, pungens, sitchensis. Distribution D F N S. Published as part of Albrecht, Anders Christian, 2017, Illustrated identification guide to the Nordic aphids feeding on Conifers (Pinophyta) (Insecta, Hemiptera, Sternorhyncha, Aphidomorpha), pp. 1-160 in European Journal of Taxonomy 338 on page 9, DOI: 10.5852/ejt.2017.338, http://zenodo.org/record/3834349 |
| Databáze: | OpenAIRE |
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