Pingasa cinerea Warren, 1894

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

Pingasa cinerea Warren (Figs 844–849)

Oviposition

1♀ code no.: G335

Oviposition period: 4–7 Feb.

Batch size: 6–15; (n = 3)

Realised fecundity: 27

Incubation time (days): 8

Batch configuration and attachment: Firmly attached, singly (Fig. 844).

Colour: Pale yellow becoming dark yellow with faint orange streaks (Fig. 844), then transparent grey on maturity.

Size (mm) (n=9): L = 1.00 ± 0.01, W = 0.78 ± 0.00, T = 0.58 ± 0.01.

Width/length: 0.78

No. of females: 2

Aeropylar opening size (m) (n=1): L = 1.76.

Relative aeropylar opening size: 2.0

Micropyles: Indistinct (Figs 845 & 846)

No. of openings: 1

No. of cells in rosette: 6

No. of rows of cells in micropylar area: 7

Shape: Moderately broad, bluntly ovoid, anterior pole truncated, posterior pole subpointed, compressed dorso­ventrally (Figs 844, 845 & 847).

Characteristics: Egg faintly marked on all surfaces by convex, hexagonal cells with moderately broad elevated walls (Figs 844, 845, 847 & 848); except cells on middle of top of wide side concave, rounded (Fig. 848). Aeropyles very inconspicuous, unelevated, openings small, distributed around rim of egg only. Micropylar cell walls overlaid by a narrow shallow reticulum (Fig. 846). Chorion generally smooth, with shallow undulations, each cell generally with six large pits at junctions (Fig. 849).