Fuchsia and bee - at last

The large hardy fuchsia bush in our daughter's garden attracts dozens of small bumble bees. I've been trying to catch one in focus for weeks. I think this is as good as it will get.

I've looked at some online identification guides but no wiser. These seem to be social bumble bees as we see so many at a time on the same bush. They are essentially yellow with 4 or more darker stripes. Perhaps some helpful blippers can help with identification.