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Mosquitoes play a critical role as vectors of pathogens affecting both humans and animals. Therefore, understanding their biodiversity and distribution is crucial to developing evidence-based vector control strategies. The current study updated the composition and distribution of mosquito species through a comprehensive survey of all municipalities of Cabo Verde. From October 2017 to September 2018, mosquito larvae and pupae were collected from 814 aquatic habitats. Anopheles gambiae(Giles, 1902) and Culex pipiens(Linnaeus, 1758) complexes were subjected to PCR-based techniques for sibling species identification. Ten mosquito species from 5 genera were identified: Aedes aegypti(Linnaeus, 1762), Aedes caspius(Pallas, 1771), Anopheles arabiensis(Patton, 1905), Anopheles pretoriensis(Theobald, 1903), Culex bitaeniorhynchus(Giles, 1901), Cx. pipiens, Culex quinquefasciatus(Say, 1823), Culex tritaeniorhynchus(Giles, 1901), Culiseta longiareolata(Macquart, 1838), and Lutzia tigripes(de Grandpre & de Charmoy, 1901). Santiago Island reported the highest number of species (n= 8). Ae. aegyptiand Cx. quinquefasciatuswere the most widely distributed species across the country. An. arabiensiswas the sole species identified within the An. gambiaecomplex. The findings from our study will help guide health policy decisions to effectively control mosquito-borne diseases.