Scanning electron micrographs are used to illustrate descriptions of the eggs of Aedes (Halaedes) australis and Aedes (Ochlerotatus) camptorhynchus. Aedes australis eggs are rhomboidal in ventral or dorsal view; Ae. camptorhynchus eggs are very broadly cigar-shaped. Both are more curved on the ventral surface. The ventral chorionic cells in Ae. australis have a distinct reticulum and many polygonal tubercles distributed over the cell fields. A clear boundary separates these cells from the dorsal type, where the reticulum is very poorly defined and the tubercles rounder and smoother. Ventral cells in Ae. camptorhynchus contain a single, large, central tubercle and many smaller, evenly spaced peripheral ones. This structure changes through a lateral transition zone to cells of the dorsal type, which, although differing in details of the reticulum, are similar to ventral surface cells in Ae. australis.