This page will contain photos and information on all the New Species.
If we run out of new species we will use this page to display information on some of the species found in the Dene.
knopper gall wasp, Andricus quercuscalicis, is a tiny wasp that produces ridged
outgrowths, or 'galls', on the acorns of our native Pedunculate Oak; forming in
August they are sticky and red, later becoming woody and brown.
The gall is
seen more often than the adult wasp.
Galls develop as a chemically induced distortion of growing acorns on
Pendunculate Oak trees, caused by cynipid gall wasp Andricus quercuscalicis
which lays eggs within buds using the ovipositor.
recent introduction to the British Isles, first arriving in the 1960s and now
found throughout England, Wales and as far north as Scotland.
Photo left from the Internet