I have many of these trying to get in my hives. I had a weaker hive that I had started feeding and noticed these got into the hive and up in the top hive feeder so I'm now combining two weaker hives. I'm also putting in an entrance reducer and plugging the cork hole.

In anycase, I'm just trying to understand what type of bee they are and if there is anything I can do. They did quite a bit of damage to the one hive and I'm trying to figure out what I could've done to prevent it.