Published online by Cambridge University Press: 10 July 2009
Up to the present time no single species of the cosmopolitan genus Thrips has been recorded from the mainland of India. In fact our knowledge of the Thysanoptera of this country is extremely fragmentary. Schmutz in 1913 (Sitzb. der K. Akad. Wissensch. in Wien, Math-nat. kl. cxxii, p. 1–99) described forty-four species from Ceylon, and since that time about a dozen more have been added, and no doubt many of these will be found to occur on the mainland. At present, however, only seven species are recorded. These are: Physothrips lefroyi, Bagnall, Physothrips usitatus, Bagnall, Helioihrips indicus, Bagnall, Panchaetothrips indicus, Bagnall, Hindsiana apicalis, Bagnall, Phoxothrips breviceps, Bagnall, and Leeuwenia indicus, Bagnall. It is probably no exaggeration to say that there are at least two thousand species in that country still awaiting discovery.