This family of thrips contains more than 3,000 species, including various pest species like Haplothrips tritici which damages wheat in Europe and Asia. The adults of some species can exceed 1 cm in length.
The family is characterized by having a tubelike last abdominal segment in both sexes, segment X, with the anus at the end and the genital opening at the base of that segment. The wings are carried in a crossed position at rest and the antennae usually have 8 segments.
Some species are also beneficial predators, see under predatory thrips
The following genera are currently entered in the system: