Whilst away in Cornwall, the last two weeks, we noticed small dots appearing on our bed sheets, there were several flies buzzing around the caravan could they be the culprits. By the end of the two weeks there were several areas dotted
We had the same this week though not as bad, about a quarter of that amount. Odd that they form in clusters. We saw vey few flies. Other years we have had thousands and no spots. The following day they had mostly faded on their own.