On the biogeographic range of the genus Teleopsis Rondani (Diptera: Diopsidae), with redescription of Teleopsis sykesii from India and description of a new species from Borneo

The genotype of the genus Teleopsis Rondani, T. sykesii (Westwood) from India is redescribed: Teleopsis onopyxus Séguy is now considered a junior synonym of T. sykesii. T. onopyxus was described from Madagascar, but this type locality must be due to mislabelling. T. sykesii occurs in India and perhaps in Myanmar. Lectotypes are designated for T. sykesii and T. onopyxus. From Sarawak and Sabah, Teleopsis pallifacies spec. nov. is described. Among its type series of more than 200 specimens, single flies occurred with labels from Australia and Irian Jaya. These are also considered to be mislabelled. Teleopsis now becomes a purely Oriental genus with no representatives in the Australasian or Malagasy regions. For T. sykesii and T. pallifacies spec. nov., data are presented on sexual dimorphism in relation to eye span.