Decorosiphon corynothrix Börner, 1939

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 : 9

Decorosiphon corynothrix Börner, 1939

Fig. 7

Diagnosis

Apterae 1.2–1.7 mm, shiny olive, brownish yellow or reddish brown, juveniles green–olive brown, with whitish wax dusting, the rupture lines (which break at moulting) exceptionally distinct, due to denser wax coating. Antennae longer than body. Siphunculi strongly swollen distally, with well-developed apical flange. Hairs on body and appendages very long, with spatulate distal part. Ad. and juv. can be found all the year. Peat bogs, damp places in coniferous forests, also deciduous forests. Often on Polytrichum interspersed in Sphagnum tussocks. Monoecious, seems to prefer Polytrichaceae . Not antattended.

Recorded hosts

Hylocomiaceae : Rhytidiadelphus squarrosus ; Polytrichaceae : Atrichum undulatum *, Polytrichastrum formosum , Polytrichum commune , juniperinum, strictum *.

Distribution

D F N S.

Figures

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.