Pemphigus populi Courchet, 1879

club-shaped poplar-gall aphid

on Populus, primary host plant

Pemphigus populi: young gall on Populus nigra

Populus nigra, Hungary, Mosonmagyaróvár © László Érsek: young gall (early May)

Pemphigus populi: fundatrix in gall on Populus nigra

opened gall with fundatrix

Pemphigus populi: gall on Populus nigra

a month later

Pemphigus populi: gall with apterae on Populus nigra


Pemphigus populi: gall wih alatae on Populus nigra


Pemphigus populi: gall on Populus nigra

Populus nigra, Spain, prov. Léon, Astorga; © Nicolás Pérez

Pemphigus populi: gall on Populus nigra

Populus nigra cv ‘Italica’, Belgium, prov. Liège, Sclessin; © Jean-Yves Baugnée.The gall is unusually high, possibly because it is still young.

Pemphigus populi: opened gall

opened gall

Pemphigus populi: gall on Populus nigra

Populus nigra cv ‘Italica’, Overschie © Ben van As: the lower gall is about to burst open at the tip


the gall usually is green and almost always narrowed at the base.


Salicaceae, narrowly monopgagous

Populus laurifolia, nigra, tadshikistanica.


aphid colonies on the roots.

secondary hostplants

Fabaceae, oligophagous

Lathyrus pratensis; Medicago lupulina; Melilotus altissimus.


Pemphiginus populi; Pemphigus hederae de Horváth, 1894.


Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Barbagallo & Massimino Cocuzza (2014a), Béguinot (2002h, 2003a, 2006c, 2007a, 2012a), Bellman (2012a), Blackman & Eastop (2014), Buhr (1965a), Cogolludo (1921a), Dauphin & Aniotsbehere (1997a), Deckert & Deckert (2016a), Heie (1980a), Hellrigl (2004a), Houard (1908a, 1909a), Influential Points (2018), Kollár (2011a), Lambinon, Carbonnelle & Claerebout (2015a), Lambinon & Schneider (2004a), Lampel (1988a), Lampel & Meier (2003a), Nieto Nafría, Mier Durante, Binazzi & Pérez Hidalgo (2002a), Osiadacz & Halaj (2014a), Pellizzari (2010a), Redfern & Shirley (2011a), Ripka, Reider & Szalay-Marzsó (1998a), Suay Cano & González Funes (1998c), Tomasi (2003a, 2014a).

mod 9.vii.2018