Aedes (Ochlerotatus) caballus (Theobald, 1912) (Fig. 21)

Type locality. Onderstepoort, Transvall, South Africa.

Distribution. This species is mostly found in the Afrotropical Region (Azari-Hamidian et al. 2019). In the Middle East, it has been recorded in Iran, Saudi Arabia and Yemen (Mattingly & Knight 1956; White 1980; Jupp et al. 2002; Reinert et al. 2009; Azari-Hamidian et al. 2019; Wilkerson et al. 2021). It was recorded for the first time in Saudi Arabia by Jupp et al. (2002).

Remarks. Reinert et al. (2009) established Juppius as a subgenus of the genus Ochlerotatus for three morphologically similar species: Ae. caballus, Ae. chelli (Edwards) and Ae. juppi McIntosh. However, in the classification of Wilkerson et al. (2015), Juppius was reduced to a species group ( Juppius Group) in the subgenus Ochlerotatus of Aedes . McIntosh (1973) can be consulted for the taxonomy of the three species.

Medical importance. Aedes caballus is assumed to be a vector of Middelburg, Rift Valley fever, Wesselsbron and West Nile viruses in South Africa (McIntosh 1973).