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 Muscaphis musci Börner, 1933 Fig. 12 Diagnosis Diagnosis based on Blackman & Eastop (2014) and Heie (2004) . Apterae 0.5–1.0 mm, shiny, greyish yellow, pale brown or dark olive. Siphunculi reddish brown, cylindrical; apex truncate without constriction or flange; aperture terminal. Monoecious? Recorded hosts Amblystegiaceae : Amblystegium ; Hypnaceae : Calliergonella ; Brachytheciaceae : Brachythecium rutabulum ; Brachytheciastrum velutinum , Eurhynchium , Pseudoscleropodium purum ; Bryaceae : Bryum ; Hylocomiaceae : Hylocomium ; Plagiomniaceae : Plagiomnium undulatum ; Polytrichaceae : Atrichum undulatum , Polytrichum commune ; Pottiaceae : Barbula , Tortula muralis ; Calliergonaceae : Calliergon . Distribution D.