I think there were at least three individuals.
No interactions present.
images 1-3 look like they could be chalcidoids, however the last one looks like a cynipoid, given the small size probably a charipine
Thank you for the comment. Would it be generally true that, while there are very small wasp species, this is not the case with bees? If so, could that be due to the wasps in question being predatory/parasitic on other creatures that are small? Wasps that trigger gall-formation in plants don’t seem to immediately fit with that idea.
Hi Grant, yes there are very many small parasitic wasps, some of them complete their development inside the eggs of other insects, and included the smallest Hymenoptera. Gall wasps evolved from parasitic wasps, and are parasitic on plants instead of other insects, some of them are pretty small too.
Thanks for the comment. (I have started to wonder if the less photogenic flies are being overlooked as hosts for parasitic wasps).
Lat/Lng: 51.4337, -2.7624
OS grid ref: ST470707