Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea) Albrecht, Anders Christian European Journal of Taxonomy 2015 2015-10-21 145 1 55 (Linnaeus, 1758) Linnaeus 1758 [602,1061,482,509] Insecta Aphididae Rhopalosiphum Animalia Aphidomorpha 30 31 Arthropoda species padi   Fig. 25    Diagnosis Aptera 1–2.4 mm, olive mottled with darker green. Siphuncular area and often also tip of abdomen rust-red. Juveniles paler, matt, with thin wax dusting. Siphunculus almost straight, longer than cauda, with subapical constriction and apical flange. Dioecious, alternating between  Prunusand graminoids ( Poaceae, Cyperaceae, Juncaceae), rarely on other hosts, exceptionally on  Equisetum.Recorded from  E. sylvaticum.    Distribution D N F Fa I S.