Thelaxes dryophila (Schrank, 1801)
Quercus robur, England, Kent, Oaken Wood © Bob Dransfield & Bob Brightwell, InfluentialPoints
Quercus petraea, Hungary, Budapest © László Érsek
old ad young apterae
aphids at the underside of young leaves, mainly along the midrib; leaves ± not discoloured. Ant-attendance.
Quercus petraea, pubescens, robur.