Gall wasp on oak

Gall wasp on oak

Observation - Gall wasp on oak - UK and Ireland. Description: There were numerous wasps flying around and landing on the freshly emerged oak leaves and flowers, they were tiny - about 2mm long. I am not too bothered about the exact species but I would like to know what sort of gall they produce and at least the fami

There were numerous wasps flying around and landing on the freshly emerged oak leaves and flowers, they were tiny - about 2mm long. I am not too bothered about the exact species but I would like to know what sort of gall they produce and at least the family.