Is there any animal (spider, insect) that eats dust mites? I have trawled the internet and cannot find any reference to dust mites having predators. If they have no predators, why not? I thought of this question when wondering whether or not spiders would eat them; seeing a spider in the house I thought it might be useful in that way.

I've asked a friend who is an expert on dust mites, and his reply is that other mites eat dust mites - for example Cheyletus http://www.nhm.ac.uk/nature-online/spec … -eruditus/

Mites are too small for spiders to bother with I suspect.