What are these things? Past month or so our house, mostly kitchen, has been infested with teeny tiny beetles. I think they're concentrated in the kitchen because that's the window they're coming in. With magnifying glass they look like miniature june bugs, wings & all. The biggest is less than 1/8" long; most are maybe half that size. They are not ants, weevils, fleas or sewer gnats.
They're crawling around everywhere, but do NOT appear to be going after anything food. Yes, we've found them in the sugar, flour, on bread bags & cereal boxes. But they're pretty much spread out evenly. I figure if they were targeting something to eat that's where they'd be concentrated.
I've made countless emails & phone calls to county extension office, guy I apparently need to talk to is never in, is always out on a call someplace. Can't/won't even answer email. (Further comment withheld at great personal sacrifice & expense)
I would assume that they are in your food stuffs and simply hatched. I would toss everything that is not in a can or jar and then use an insect fogger to kill the active insects. If you do not do a thorough house cleaning you are quite likely to have a new infestation again in a matter of weeks.
A lot of what we eat (grains, cashews, candy with nuts, cereal) has insect eggs included but we eat and digest them before they can hatch. If it is unusually hot or items like cereal boxes or nuts are placed on high shelves then the hatching can be triggered very quickly. Once they are on the move they will go from the source container to any non-glass stored or canned food you have.