Keys and descriptions of some of the aphids belonging to the Macrosiphini occurring in Scandinavia are given with drawings and colour plates. Among the genera are Myzus, Nasonovia, Acyrthosiphon and Macrosiphum. The other genera and species of Macrosiphini are treated in vol. IV and the coming vol. VI, which is the last one of The Aphidoidea of Fennoscandia and Denmark. Descriptions include morphology, distribution and biology.

This is the last volume dealing with the aphids of Fennoscandia and Denmark. It treats the remaining species of Aphididae and the family Lachnidae and contains a host plant index and an index to all Latin names of the species treated in all six volumes. Like the first five volumes it contains keys and illustrations.