Sixteen species are listed in this genus. Most of these were described in Pygothrips, a genus in which the species also have the tube greatly expanded with convex margins, but in which the maxillary stylets are long and close together medially in the head, rather than wide apart.
Apparently found throughout the tropics, with most species in the Neotropics, but four described from Africa, one from Java and another from Japan, and some undescribed species from Australia.
Spore-feeding on dead branches
Tribe Pygothripini, subtribe Diceratothripina.
Presumably most closely related to Neosmerinthothrip