6888.    I have these bugs all over my concrete. The first photo is zoomed in and the other photo shows how tiny they really are. Calgary, AB. Canada

Number 6888. These are springtails, primitive arthropods in the order Collembola, closely related to true insects. These basically are harmless scavengers on bits of decomposing organic matter, but they can become nuisance pests when they occur indoors in large numbers. They are quite susceptible to desiccation, so keeping indoor humidity levels as low as practical is the best control. Click here for an example