Identification guide to Nordic aphids associated with mosses, horsetails and ferns (Bryophyta, Equisetophyta, Polypodiophyta) (Insecta, Hemiptera, Aphidoidea) Author Albrecht, Anders Christian text European Journal of Taxonomy 2015 2015-10-21 145 1 55 journal article 22370 10.5852/ejt.2015.145 5743d321-5138-4b7e-81df-a2701a38dc44 2118-9773 3787410 F6A3EA6C-9080-4DC7-9EF9-4C4DBEB4086F Prociphilus bumeliae (Schrank, 1801) Diagnosis Diagnosis based on Heie (2004) . Apterae about 2.9 mm , wax-covered. Two pairs of wax gland plates on head. Posterior plates on head better developed than anterior ones. A narrow pale subapical zone on RIV+V distinct. Dioecious, alternating between ash Fraxinus excelsior (sometimes other Oleaceae ) and fir Abies ( Pinaceae ), where it feeds in wax-covered colonies on the roots. Distribution D F S.