Fisera Walker, 1860

Young, Catherine J., 2006, Descriptions of the eggs of some southern Australian Geometridae (Lepidoptera), Zootaxa 1287, pp. 1-294 : 1-294

Fisera Walker (Figs 244–283)

Fisera consists of nine described and approximately six undescribed species. The genus has diversified widely into various eucalypt dominated forest types ranging from semi­arid low open woodland (Mallee) to wet forests in the south east and south west of the continent. Fisera eggs are uniformally similar. They are usually moderately broad to broad and bluntly ovoid. The anterior pole is slightly angled to the micropylar axis, the micropyles are off­centred and the egg wedge­shaped in profile. The surface is marked on all surfaces with convex cells with narrow, recessed walls. However the cells in the middle of the top of the wide side of the egg are distinctively concave and rounded with moderately wide walls. The cells on the anterior pole are usually flat and have narrow and shallowly reticulated walls. Aeropyles are slightly elevated with small openings and are not present on the middle of the top of the egg. The chorion is shallowly wrinkled. Colour when fresh ranges from yellow and green to brown. Fisera eggs resemble Mnesampela , Paralaea and Thalaina eggs in terms of shape, distribution of aeropyles and the characteristics of the cells in the middle of the top wide side of the egg.