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.

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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.

hostplants

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), Tomasi (2003a, 2012a, 2014a).