Gastrinodes bitaeniaria Le Guillou, 1841

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

Gastrinodes bitaeniaria Le Guillou (Figs 501–506)

(type species)

Oviposition

2♀ code nos.: G68, G77

Oviposition period: 13–24 May

Batch size range: 80–100; (n = 4)

Incubation time (days): 18–23

Batch configuration and attachment: Attached, pairs or singly (Figs 501 & 502).

Colour: Green, becoming olive green, then pinkish­brown, grey on maturity (Fig. 502).

Size (mm): (n=24) L= 0.94 ± 0.02, W= 0.68 ± 0.01, T = 0.58 ± 0.02

Width/length: 0.72

No. of females: 4

Aeropylar opening size (m) (n=5): L = 4.46 ± 0.35.

Relative aeropylar opening size: 4.5

Micropyles: Distinct (Figs 503 & 504)

No. of openings: 1

No. of cells in rosette: 5

No. of rows of cells in micropylar area: 2

Shape: Narrow, elongated, bluntly ovoid, anterior pole truncated; flattened dorsoventrally; elongated (Figs 501–503, 505).

Characteristics: Chorion soft. Egg distinctly marked on all surfaces by concave quadrate cells with moderately broad, rounded walls, arranged in longitudinal rows (Figs

501–503, 505, 506). Aeropyles elevated, domed, openings moderately large (Fig. 506), present on all surfaces. Rosette cells recessed (Fig. 504). Chorion smooth, covered with mesh­like reticulation (Fig. 506).