Abstract
Keys and diagnoses of North European aphids (Hemiptera, Aphidoidea) feeding on conifers are given, including species from nearby areas of Central and Western Europe, based on live and freeze-dried material. Externally visible informative characters, such as body shape, colours, wax coating, and pigmentation pattern are utilized, in addition to characters traditionally used in the literature. Rich illustrations with photographs of live colonies and freeze-dried specimens, supported by drawings where needed, are presented. The combination of colour images and diagnoses, utilizing easily observed characters, allows the identification of a large number of species already in the field, and many more at home with the aid of a stereo microscope. Host plant relationships and aphid-ant associations are presented.
Highlights
This is the second article presenting the Nordic Aphidomorpha
The purpose of this work is to display them in a way that is closer to their natural appearance than how aphid handbooks traditionally present them
This is intended to facilitate the study of this fascinating group of insects
Summary
This is the second article presenting the Nordic Aphidomorpha. The purpose of this work is to display them in a way that is closer to their natural appearance than how aphid handbooks traditionally present them. This is intended to facilitate the study of this fascinating group of insects. The present study focuses on conifer-feeding aphids of Finland and Scandinavia, including Iceland, Greenland, The Faroes and Svalbard. Most of the species occurring in adjacent parts of north-eastern Europe, the Baltic region and northern central Europe, including the British Isles are covered. For a more complete introduction, see Albrecht (2015)
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