I've add fruit flies raising a garden every year I am very familiar with them and how to kill them. But twice now I have killed one by smashing it and upon doing so two little tiny bugs or crawling on me after I smashed the fruit fly and wiped it off of my hand. I am curious of what these little tiny bugs are that are living on the fruit fly. Can you help me identify them[![
Unfortunately the picture is too blurry, so I can only talk from experience : They might be parasitic mites. Insects often carry parasitic mites around. Look at this article for example : https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10317784/ It seems like Drosophila is no exception.
Moreover in this article : https://www.jneurosci.org/content/36/44/11275 you can see that Drosophila has evolved a defense mechanism against such mites.
Parasitic mites of insects breach the cuticle and suck the hemolymph (equivalent of the blood + lymph of insects) out of their host.