Hello folks. I have two white tree heathers in my garden and early every spring, when the sun shines, I have four or five bumblebees staggering around them feeding furiously. This year two of the four had about 24 mites around the head and in the joints where the wings meet the body. Two were clear. The worst infested bumble got thinner and thinner and eventually disappeared. Very sad. Last year I had several honey bees in my garden and there were two or three very badly infested with the mites. Are these varoa mites do you think?