Quercus robur, Belgium, prov. Antwerp, Keyfheide-Meerhout © Carina Van Steenwinkel
one of the two pairs of loculi still is well discernable.
of two pairs of loculi at the upper side remains a high ridge, and the underside no more than a faint line
dissected, fully developed gall with the remnants of a pair of loculi as vague vertical line
keys that were used (Buhr, 1965; Eady & Quinlan, 1963; Nieves-Aldrey, 2001; Redfern & Shirley, 2011a; Roskam, 2009; Williams, 2010a) pointed to Andricus glandulae; however, without exception all keys describe the gall of that species as oval. That is in agreement with a picture in Bloxham (2004a), showing a gall that somewhat reminds of A. solitarius.
The gall most closely agrees with the drawings of the gall of “Neuroterus politus” in Redfern & Shirley and Roskam. However, that picture so strongly deviates from what is illustrated by Melika ao under that name that the identification is doubtful.