Fisera perplexata Walker, 1860

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

Fisera perplexata Walker (Figs 252–258)

(type species)

Oviposition

3♀ Code no.: G277, G435, G436

Period of oviposition: May

Batch size: 21.9 ± 4.7 range: 4–42 (n = 10)

Realised fecundity (range): 4–40

Incubation time (days): 48 (on moistening).

Batch configuration and attachment: Attached singly or in large groups (Fig. 252).

Colour: Pale yellow, becoming brown (Fig. 252).

Size (mm): L=0.71, W=0.62, T=0.48

Width/length: 0.69

No. of females: 3

Aeropylar opening size (m) (n=7): L=1.69 ± 0.09, W=1.36 ± 0.05

Relative aeropylar opening size: 1.2

Micropyles: Indistinct (Figs 253 & 254)

No. of openings: 6

No. of cells in rosette: 7

No. of rows of cells in micropylar area: 4

Shape: Narrow, elongated, bluntly elliptical; anterior pole slightly truncated, slightly wider than posterior pole, angled to horizontal axis, polar profile elliptical; dorso­ventrally flattened (Figs 252, 253, 255 & 256), wedge­shaped in profile (Fig. 256).

Characteristics: Egg marked on all surfaces with hexagonal cells (Figs 254, 255–260). Cell walls narrow, recessed, floors convex in cells on and adjacent to narrow lateral sides and cells surrounding micropylar area (Figs 253, 255–258); cell walls moderately wide, cell form broadly rounded, cell floors concave on middle of top of egg (Figs 255, 259 & 260); micropylar cell walls narrow, shallowly reticulated (Fig. 254). Aeropyles slightly elevated, openings small, present on all surfaces except middle of top of egg (Figs 257 & 258). Chorion shallowly wrinkled (Fig. 260).