Melanaphis pyraria (Passerini, 1862)
pear-grass aphid
on Pyrus, primary host plant
Pyrus spec., Hungary, Budapest © László Érsek
occupied leaf roll
apterae
Pyrus communis, England, East Sussex © Bob Dransfield & Bob Brightwell, InfluentialPoints
gall
leaves rolled inward, transversely or diagonally; aphids at the underside. Thy are attended by ants, but only on the primary host plant.
hostplants
Rosaceae, monophagous
Pyrus communis & subsp. pyraster.
on Poaceae, secondary host plants
gall
aphids under the crumpled leaves.
hostplants
Poaceae, oligophagous
Agrostis; Anisantha diandra; Arrhenatherum; Brachypodium pinnatum; Bromus; Dactylis glomerata; Holcus; Hordeum murinum, vulgare; Ochlopoa annua; Panicum miliaceum; Piptatherum miliaceum; Poa; Triticum.
synonyms
Geoktapia pyraria; Longiunguis, Myzus, pyrarius; Myzus pyrinus Ferrari, 1872.
references
Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Barbagallo & Massimino Cocuzza (2014a), Bašilova & Rakauskas (2012a), Blackman & Eastop (2014), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Heie (1982a), Hellrigl (2004a), Houard (1908a), Lampel & Meier (2007a), Müller (1986a), Müller & Horatschek (1980a), Nieto Nafría, Mier Durante, García Prieto & Pérez Hidalgo (2005a), Petrović (1998a), Ripka, Reider & Szalay-Marzsó (1998a), Roskam (2009a), Suay Cano & González Funes (1998a), Weis (1955a).