User:Peter Robert Shirley/sandbox

Hallo, my name is Peter. I live in England. I like it here. I like apples.

Andricus lignicolus
Cola-nut galls develop as a chemically induced distortion of leaf axillary or terminal buds on Pedunculate Oak (Quercus robur) or Sessile Oak (Quercus petraea) trees, caused by the sexual generation of the gall wasp Andricus lignicolus (Hartig, 1840) which lays single eggs within leaf buds using their ovipositor. Previous names or synonyms for the species A. lignicolus is A. lignicola and A. venheurni.

The imago of the agamic phase emerges in early summer following the gall's inception. The bisexual generation gall is very similar to that of the same generation of A. kollari, affecting buds of Quercus cerris.