Small Hymenopteran on Sedge

Small Hymenopteran on Sedge

Observation - Small Hymenopteran on Sedge - UK and Ireland. Description: If these images allow, I should be glad for some indication as to ID. There appears to be at least one, perhaps two, white dots, on the head –merely adventitious material picked up from the environment, or just possibly parasite eggs?

If these images allow, I should be glad for some indication as to ID. There appears to be at least one, perhaps two, white dots, on the head –merely adventitious material picked up from the environment, or just possibly parasite eggs?