Pemphigus vesicarius Passerini, 1862
on Populus, primary hostplant
Populus nigra, Hungary, Budapest 7.v.2019 © László Érsek
detail
gall
fundatrix
same tree, 27.v.2019: galls
opened gall, with larvae
larvae
larva (young alate)
larva ventral
fundarix
fundarix ventral
same tree, 10.vi.2018: ols galls
opened
gall with exit openings
last stage
Populus nigra (from Houard, 1908a)
Populus nigra, Italy, Aosta © Ben van As
gall
Over 3 cm large gall on the petiole or a young shoot. De gall bears several protuberances that develop into tubes and eventually get a terminal opening, by which the aphids then leave the gall.
host plants
Salicaceae, narrowly monophagous
Populus nigra, suaveolens.
on Colutea, secondary host plant
gall
Aphids of the summer generation on the branches and lowers parts of the bush. The aphids measure c. 3 mm and produce copious amounts of wax.
host plants
Fabaceae, monophagous
Colutea arborescens.
references
Barbagallo, Binazzi, Pennacchio & Pollini (2011a), Barbagallo & Massimino Cocuzza (2014a), Béguinot (2003a), Bellmann (2012), Blackman & Eastop (2014), Buhr (1965a), Cogolludo (1921a), Dauphin & Aniotsbehere (1997a), Hellrigl (2004a), Nieto Nafría, Mier Durante, Binazzi & Pérez Hidalgo (2002a), Papapanagiotou, Nathanailidou, Taylor ao (2012a) , Pellizzari (2010a), Salas-Remón, Llimona, Lozano ao (2015a), Suay Cano & González Funes (1998c), Tavares (1905a), Tomasi (2003a, 2012a, 2014a).