On the spider genus Oecobius Lucas, 1846 in South America (Araneae, Oecobiidae)

Three synanthropic species of Oecobius are recorded in South America: O. navus Blackwall, 1859, O. concinnus Simon, 1893 and O. marathaus Tikader, 1962. Oecobius fluminensis Mello-Leitao, 1917b, described from Brazil, and O. trifidivulva Benoit, 1976, from Zaire, are synonymized with O. navus and two other Brazilian species, O. hammondi Mello-Leitao, 1915 and O. variabilis Mello-Leitao, 1917 are confirmed as junior synonyms of O. navus. Oecobius marathaus , originally described from India, is considered a senior synonym of O. inopinatus Wunderlich, 1995b, from Australia. Distribution and habitat records for these species are provided.