Thrips (order
Thysanoptera) are minute, slender
insects with fringed wings (thus the
scientific name, from the
Greek θύσανος
thysanos ("fringe") + πτερόν
pteron ("wing")). Other common names for thrips include
thunderflies,
thunderbugs,
storm flies,
thunderblights,
storm bugs,
corn flies and
corn lice. Thrips species feed on a large variety of plants and animals by puncturing them and sucking up the contents. A large number of thrips species are considered pests, because they feed on plants with commercial value. Some species of thrips feed on other insects or
mites and are considered beneficial, while some feed on
fungal spores or pollen. Approximately 6,000 species have been described. Thrips are generally tiny (1 mm long or less) and are not good flyers , although they can be carried long distances by the wind. In the right conditions, like indoor grow rooms or greenhouses, many species can exponentially increase in population size and form large swarms because of a lack of natural predators, making them an irritation to humans.