Morphology of hybrids between Aedes (Protomacleaya) zoosophus and Ae. (Pro.) triseriatus group species is described. Adult females of hybrids key to Ae. zoosophus. Hybrids are differentiated from Ae. zoosophus by the dark longitudinal medial or submedial lines on the thorax and by the reduced width of the light tarsal and abdominal bands. The transverse band of light scales on the anterior scutum is complete in Ae. hendersoni/Ae. zoosophus hybrids and incomplete in Ae. triseriatus/Ae. zoosophus hybrids. Aedes brelandi/Ae. zoosophus hybrids are similar to Ae. hendersoni/Ae. zoosophus hybrids. However, due to the allopatric distributions of Ae. brelandi and Ae. zoosophus, such hybrids are not expected.
