ABSTRACT
       Background and Objective: This descriptive study aimed to evaluate the presence and frequency distribution of mosquito species in the city of Port Sudan, Sudan.
       Methods: After collection of 500 adult mosquitoes from different sectors of the city Port Sudan, they were classified using the morphological keys for identification of mosquitoes.
       Results: Overall, 230 Culex quinquefasciatus (46%) were detected in the eastern, central and southern sectors of the city. Culex sitiens (14.2%) were detected only in the central sector. Aedes aegypti (32.2%) were detected in all three sectors. Anopheles funestus (6.6%) were detected in the central and southern sectors.
      Conclusion: Cx. quinquefasciatus and Ae. aegypi are prevalent in all sectors of the city, while Cx. sitiens is prevalent only in the central sector. An. funestus is abundant in the central and southern sectors.
       Keywords: Culicidae, Morphological and Microscopic Findings, Eastern Sudan.