Culex (Culiciomyia) nebulosus Theobald, 1901c (Fig. 42)

Type locality. Old Calabar, Nigeria.

Distribution. This species is widespread in the Afrotropical Region (Wilkerson et al. 2021). In the Middle East, it occurs in Saudi Arabia and Yemen (Edwards 1914; Knight 1953b; Lewis 1956; Mattingly & Knight 1956; White 1980; Büttiker 1981; Miller et al. 2002; Lemine et al. 2017; Wilkerson et al. 2021). It was recorded for the first time in Saudi Arabia by Büttiker (1981).

Remarks. Culex nebulosus is the only representative of its subgenus in the region (Harbach 1988).

Medical importance. In Africa, this species is involved in the transmission of Ntaya virus (Brottes et al. 1966) and Babahoyo, Bagaza, M’Poko, Middelburg, Tai and Yaoundé viruses (Adam & Digoutte 2005; Tantely et al. 2016). Females of Cx. nebulosus rarely attack humans (Kerr 1933).