Smith,
LOL!
To be honest it didnt take much precision to google "dust mite bites". In fact it came up as a option after I typed "dust mite" - the bites must be a common question on Google.
A generic term, not so precise, for those small thingys you cannot see are "no-see-ums"... I have seen that used all over the place.
And for those who like Jeopardy, Sand Fleas are crustaceans, not insects. But being that small, I am sure DEET does a number on their system. Once again, this info is thanks to the "Orkin Man"!
Happy bug killing! (grin)