Fig. 7 in Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea)

Fig. 7. Decorosiphon corynothrix Börner, 1939. A. Apt. and juv. in Polytrichum commune sample. B. Apt. on Sphagnum magellanicum (with interpersed Polytrichum strictum). C. Apt. juv. on Polytrichum commune. D. Apt. juv. on S. magellanicum, showing rupture line.