Llun: 1
Galls on rosa, salix, bramble

Galls of bean gall sawfly, Pontania proxima on Salix cinerea, Pendoylan Moor, June 1966. According to Mike Claridge, these are midge or mite, not sawfly.
Enw rhywogaeth Mary: Bean gall sawfly
Enw gwyddonol: Pontania (Pontania) proxima

Dyddiad: June 1966

Llun: 2
Galium, phragmites, thistles

Stem gall on Galium palustre, Marsh bed straw, Pendoylan, 28/6/1966
Enw rhywogaeth Mary: Stem gall
Enw gwyddonol: Geocrypta galii

Llun: 3
Galium, phragmites, thistles

Lipara lucens, cigar galls on phragmites, Pendoylan, 28/6/1966
Enw rhywogaeth Mary: Lipara lucens
Enw gwyddonol: Lipara lucens

Dyddiad: 18/06/1966