These running red mites are everywhere, including soil litter, tree trunks, brick or stone walls, and flowers. Little is known about their biology and habits, but they have been seen feeding on small arthropods and pollen. These Balaustium mites also have been reported as biting humans. This may just be incidental cases of probing the skin they find themselves on, not taking an intentional meal.
By Lee Townsend, Extension Entomologist