Eggs of Aedes albopictus were collected in oviposition cups from 3 forested areas of Delta State in south-central Nigeria during September 1991 as part of a post-yellow fever outbreak investigation. These eggs were shipped to the Centers for Disease Control in Colorado, where they were reared to the adult stage and identified. This is the first record of breeding populations of Ae. albopictus in continental Africa. Other taxa reared from the same oviposition cups included Ae. aegypti, Ae. apicoargenteus, Ae. africanus, Ae. lilii and Ae. simpsoni subgroup. The introduction and establishment of Ae. albopictus in Africa may have important implications for transmission of indigenous arboviruses.