Pemphigus phenax Börner & Blunck, 1916

on Populus


epiphyllous, generally reddish, fusiform swelling of the central part of the midrib, over five times the normal thicknes; slit-like opening at the underside over the entire length of the gall.

primary hostplants

Salicaceae, monophagous

Populus nigra & var. italica.

on Daucus


the apterae here are pale lemon yellow to yellowish white, with white wax; 1.5-2.5 mm.

secondary hostplants

Apiaceae, monophagous

Daucus carota & subsp. sativus


Buhr describes this species under the name: “Pemphigus dauci Gour.”. This is erroneous: P. dauci (Goureau, 1867) is a synonym of Dysaphis crataegi.


Bellmann (2012a), Blackman & Eastop (2014), Buhr (1965a), Dauphin & Aniotsbehere (1997a), Heie (1980a), Krzywiec (1982a), Lampel & Meier (2003a), Nieto Nafría, Mier Durante, Binazzi & Pérez Hidalgo (2002a), Osiadacz & Halaj (2014a), Petrović (1998a), Redfern & Shirley (2011a), Tambs-Lyche & Heie (1994a).

mod 27.iii.2018