Bite

Saturday I went to a BBQ. It was great. But I fell asleep in the garden, and when I woke up I had some strange bites up and down my legs. In the beginning you could see, that they were bites, because they had two little dots, but as it got more irritated and sore, they started looking like wounds. This is a picture of 3-4 bites just next to each other. It's was really painful as well. I wonder what animal has had a feast on me, while I was asleep?