Dirce oriplancta Turner, 1925

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

Dirce oriplancta Turner (Figs 22–27)

Oviposition

4♀ code nos.: G320, G326, G327, G330.

Oviposition period: 6–31 Dec.

Batch size: 27.6 ± 7.4 range: 6–60 (n = 7)

Realised fecundity (range): 12–60

Incubation time (days): 7–13

Batch configuration and attachment: Loose.

Colour: Very pale green, becoming burnt orange and red at poles, then transparent grey on maturity (Fig. 22).

Size (mm): (n=5) L = 0.80 ± 0.01, W = 0.58 ± 0.01, T = 0.52 ± 0.02

Width/length: 0.73

No. of females: 1

Aeropylar opening size (m) (n=7): L = 0.64 ± 0.01, W = 0.56 ± 0.02

Relative aeropylar opening size: 0.8

Micropyles: Indistinct (Figs 23 & 24)

No. of openings: 5

No. of cells in rosette: 4

No. of rows of cells in micropylar area: 2

Shape: Moderately broad, bluntly ovoid, truncated anterior pole, dorso­ventrally flattened (Figs 22, 23 & 25).

Characteristics: Egg marked on all surfaces by hexagonal, irregularly concave cells, cell form on wider top side, barely discernible (Figs 23 & 25), micropylar cell walls narrow, shallowly reticulated (Figs 23 & 24). Aeropyles very small, inconspicuous, present on lateral sides, poles; openings extremely small (Fig. 27). Chorion smooth, undulating (Figs 26 & 27).