The almost 6000 known species of thrips are at present arranged into two suborders (Terebrantia and Tubulifera) and nine families, but disagreement exists concerning the family classification system (Mound 2007). Phlaeothripidae is the largest family and the sole family in the suborder Tubulifera with about 3500 described species (Mound and Morris 2007). The other eight families are all included in the suborder Terebrantia (2400 species). Members of the Merothripidae (15 species) and Uzelothripidae (1 species) are all very small thrips associated with fungal hyphae in warm countries. In contrast, members of the Melanthripidae (65 species) are usually large and robust, and they all breed in flowers, and occur in temperate areas. Th e Aeolothripidae (190 species) is a rather larger family of mainly phytophagous species feeding on flowers, or non-obligate predators of other arthropods. The species of the next three families are poorly known, Fauriellidae (5 species) from California, southern Europe and South Africa. Adiheterothripidae (6 species) are known only from the flowers of date palms, Phoenix dactylifera and Heterothripidae (71 species), are found only in the New World and, with one exception, all species live within flowers. Th eighth family, with nearly 2100 known species is by far the largest within Terebrantia : Thripidae are found worldwide and include almost all of the pest species of thrips, many of them feed and breed on both leaves and in flowers.
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