Tyroglyphus dimidiatus Oudemans, 1924Tyroglyphus infestans Berlese, 1884Tyrophagus tenuiclavus Zakhvatkin, 1941 Tyrophagus longior is a mite in the family Acaridae.

[1] Adult females of T. longior can be distinguished from others of the genus by the following: prodorsal shield without pigmented eyespots; hysterosomal setae d1 about 1.3–1.8× as long as c1 and d2, and the alveoli (bases) of d1 situated approximately midway between those of c1 and e1; and tarsi I and II with solenidia that are long and slender (not expanded at the tips).

[1] Like other species of Tyrophagus, T. longior has a life cycle consisting of egg, larva, protonymph, tritonymph, and adult.

[1] Despite this wide range of habitats, T. longior usually does not occur in human dwellings and when it does, rarely in large numbers.

There is one report of a large T. longior population building up in dog biscuits underneath the floor (originally hoarded there by mice) and repeatedly emerging into a house by the thousands.