The Egyptian fauna of the genus Nemotelus Geoffroy was revised.  We recognize 9 species (compared to 5 species recognized about 40 years ago). As a result of this revision N. matrouhensis sp. nov.is described as new. N. anchora Loew, 1846; N. candidus Becker, 1906 and N. oasis Becker, 1906 are newly recorded from the Egyptian fauna. The female of N. albifacies Becker, 1902 is described for the first time and both sexes of N. niloticus Olivier, 1811 are redescribed and illustrated for the first time.             N. punctiventris Becker, 1902 is removed from synonymy with N. brachystomus Loew, 1846 and N. albifacies Becker, 1902 and N. oasis Becker, 1906 are removed from synonymy with N. niloticus Olivier, 1811. Also, N. theodori Lindner, 1974 is newly synonymized with N. oasis Becker and N. brachystomus aegyptiacus Lindner, 1925 is newly synonymized with N. punctiventris Becker.             With the addition of new characters such as the head index, shape of antennae and abdominal pattern, the females of N. candidus Becker, 1906 and N. marinus Becker, 1902 are diagnosed and illustrated for the first time. In addition, illustrations, keys, specimens examined, geographical and local distribution are given for each species.