CBWR?

Gall of the week is caused by the cynipid Neuroterus anthracinus f. agamic on oaks, Quercus spp. Plenty about now. The insect is of the sexual generation. Gall photo photographer unknown, insect photo from Bladmineeders nl Plant Parasites of Europe.

Gall of the week is caused by an anthomyiid fly related to house flies, Chirosia betuleti, on ferns. First photo on lady-fern, Athyrium filix-femina, second photo on male fern, Dryopteris filix-mas. Both photos by Mike Poulton.

Gall of the week is caused by the sawfly Euura herbaceae on dwarf willow, Salix herbacea. From the British Plant Gall Society website, Photographer unknown.

Gall of the week is caused by the cynipid wasp Cynips longiventris f. agamic on Oaks, Quercus spp. Should be fairly easy to find now. Photo by P. Shirley.

Gall of the week, caused by the aphid Cryptosiphum artimisiae on Artemisia spp. mugwort, wormwood, and field wormwood. Photographer not known.

Gall of the week, caused by what might be the commonest gall midge in Europe, Jaapiella veronicae, on speedwells, Veronica spp. Photographer(s) unknown, images from British Plant Gall Society website. Plenty more there. And why not join BPGS?

Gall of the week is caused by the gall midge Kiefferia pericarpiicola on several dozen umbellifers, in this case wild carrot, Daucus carota. Photo by Graham Calow.

Gall of the week is cause by the tephritid 'picture-wing fly' Urophora cardui on thistles, Cirsium spp. Male and female fly photos by Malcolm Storey, gall photo unknown.