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 von Heyden, 1837 von Heyden 1837 [576,1087,1641,1668] Insecta Aphididae Paracletus Animalia Aphidomorpha 36 37 Arthropoda species cimiciformis   Fig. 31    Diagnosis Aptera 2.2–3.4 mm, broadly oval, flattened, rather shining cream with brown legs and antennae. Dioecious, alternating between leaf galls on  Pistaciaand roots of grasses and herbs. In N. Europe anholocyclic, normally feeding on grass ( Poaceae). In xerothermic habitats. Lives in association with ants, usually  Tetramorium caespitum(Linnaeus, 1758).    Distribution F S.    Recorded Pteridophyta host  Equisetaceae:  Equisetum arvense.