Rhynchopsota delogramma

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

Rhynchopsota delogramma Lower (Figs 72–79)

(type species)

Oviposition

3♀ code nos.: G378, G379, G381

Oviposition period: 12–28 Oct.

Batch size: 9.2 ± 1.1 range: 5–18 (n = 14)

Realised fecundity (range): 18–48

Incubation time (days): 18.3 ± 1.9

Batch configuration and attachment: Attached, singly (Fig. 72).

Colour: Pinkish­brown, becoming slightly darker and transparent grey before eclosion (Fig. 72).

Size (mm): (n = 15) L = 0.94 ± 0.01, W = 0.70 ± 0.01, T = 0.58 ± 0.01

Width/length: 0.74

No. of females: 3

Aeropylar opening size (m) (n = 6): L = 1.65 ± 0.16, W = 1.28 ± 0.14

Relative aeropylar opening size: 1.6

Micropyles: Distinct (Figs 73 & 74)

No. of openings: obscure

No. of cells in rosette: 7

No. of rows of cells in micropylar area: 3

Shape: Moderately broad, bluntly ovoid; anterior pole truncated; polar profile circular (Figs 72, 73, 75 & 76).

Characteristics: Egg marked on all surfaces by flat, sub­quadrate cells, regularly arranged in longitudinal rows (Figs 73, 75 & 76). Cell form only marked by aeropyles (Figs 73, 75–78), except anterior polar, micropylar cells marked also by narrow, slightly elevated cell walls (Figs 73 & 74). Aeropyles slightly elevated, domed, openings small (Figs 77 & 78), present on all surfaces apart from middle of top of egg (Fig. 75). Chorion rough, blistered, heavily ridged (Figs 77–79).