Pachypappa tremulae (Linnaeus, 1761),

Albrecht, Anders Christian, 2015, Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea), European Journal of Taxonomy 145, pp. 1-55: 27

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Pachypappa tremulae (Linnaeus, 1761)


Pachypappa tremulae (Linnaeus, 1761) 

Fig. 19EView Fig


Apterae 1–2 mm. Resembling P. populi  . Cells in abdominal wax gland plates with a larger central spot (as in Fig. 19BView Fig). Segments 1 and 2 of all tarsi distinctly separated from each other. Spines at apices of tibiae very robust, much stronger than hairs on first tarsal segment. Dorsal hairs on hind tibia with fairly short and blunt apices. Life cycle as in the previous species. Anholocyclic hibernation on roots of spruce Picea  is common.


D F N S. See also Carter & Danielsson (1991).