Callirhytis bella (Dettmer, 1930)
Quercus robur, Biddinghuizen, Spijkbos, 4.v.2018 © Arnold Grosscurt
Ovoid, smooth, light brown, gall of 3-4 mm, largely hidden between the scales of a lateral or terminal bud. At the side eventually a large exit hole. Often several together.
Quercus petraea, robur.
Only the sexual generation is known. The gall cannot be distinguished without breeding from that of the sexual generation of Neuroterus anthracinus.
Eady & Quinlan (1963a), Nieves-Aldrey (1992a), Redfern & Shirley (20211a), Roskam (2009a), Williams (2010a).