Aphis holoenotherae Rakauskas, 2007a
on Oenothera
Oenothera biennis, Lieren (ge), 28.vi.2021 © Arnold Grosscurt: malformed plant
group of young alatae

Oenothera deflexa, Belgium, prov. Liège, Herstal © Jean-Yves Baugnée, det. Rimantas Rakauskas

the aphids

Oenothera sp., Loenen (Ge) © Arnold Grosscurt: the species is intensively attended by ants

young alatae
host plants
Onagraceae, monophagous
Oenothera biennis, brevihypanthialis, casimiri, deflexa, flaemingina, hazeliae var. subterminalis, lamarckiana, oakesiana, pseudosuaveolens.
notes
This is the only aphid that is fully dependent on evening primrose. The species very closely resembles Aphis oenotherae Oestlund, 1997, and was confused with it until recently. A. oenotherae has Ribes as primary host plant, and migrates to Onagraceae in summer; A. holoenotherae lives permanently on Oenothera. For the moment oenotherae seems not to occur in Europe.
references
Blackman & Eastop (2011a), Murányi (2018a), Rakauskas (2007a, 2008a), Rakauskas & Trukšinaitė (2011a), Rakauskas, Turčinavičienė & Bašilova (2011a).