u/Phenethylamine8

I found a lot of these tiny mites on my indoor cacti. They're a reddish translucent colour with a black dot on their abdomen. As far as I can tell they don't seem to be eating the green flesh of the plant but do seem to be eating the fruit the plant produces as that is where they are concentrated. Any idea what these could be and if they could possibly be damaging the plants? Located in Ontario, Canada. Thank you!