Epyaxa subidaria Guenée

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

Epyaxa subidaria Guenée (Figs 762–768)

Oviposition

1♀ code no.: G382

Oviposition date: 14 Oct.

Batch size: 50; (n = 1)

Realised fecundity: 50

Incubation time (days): 9

Batch configuration and attachment: Attached, singly.

Colour: Pale yellowish­green, becoming yellow then transparent grey on maturity.

Size (mm) (n=10): L = 0.60 ± 0.00, W = 0.40 ± 0.00, T = 0.35 ± 0.01.

Width/length: 0.66

No. of females: 1

Aeropylar opening size (m) (n=6): L = 1.37 ± 0.18, W = 0.93 ± 0.13.

Relative aeropylar opening size: 2.4

Micropyles: Distinct (Figs 762 & 763)

No. of openings: 3

No. of cells in rosette: 6

No. of rows of cells in micropylar area: 6

Shape: Narrow, elongated, bluntly ovoid, anterior pole truncated, dorso­ventrally flattened (Figs 762, 764 & 765).

Characteristics: Soft chorion; egg marked on all surfaces by concave, hexagonal cells with elevated, moderately broad walls (Figs 762, 764–767). Aeropyles small, unelevated, many arranged along walls of cells, openings small (Fig. 767), present on narrow lateral sides and around anterior pole. Rosette cells slightly recessed; micropylar cell walls overlain by very narrow reticulum (Fig. 763). Chorion regularly pitted (Figs 766–768).