Smyriodes trigramma, Lower, 1892

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

Smyriodes trigramma Lower (Figs 194–199)

Oviposition

2♀ code nos.: G217, G218

Oviposition date: 8 May

Batch size: 10 (n = 2)

Realised fecundity: 10

Incubation time (days): 22 (on moistening)

Batch configuration and attachment: Attached, neat rows along edge of tissue paper or clusters.

Note: McFarland (1988) reported single configuration or groups of 2–3 for this species

Colour: Pale brown, becoming dark brown and transparent grey before eclosion.

Size (mm): (n=5) L = 0.75 ± 0.02, W = 0.61 ± 0.01, T = 0.51 ± 0.02

Width/length: 0.81

No. of females: 1

Aeropylar opening size (m) (n=7): L = 4.41 ± 0.12, W = 3.59 ± 0.11

Relative aeropylar opening size: 6.2

Micropyles: Distinct (Figs 194 & 195)

No. of openings: 4

No. of cells in rosette: 8

No. of rows of cells in micropylar area: 3

Shape: Broad, sub­elliptical; anterior pole truncated; polar profile sub­circular; flattened dorso­ventrally (Figs 196 & 197).

Characteristics: Egg marked on all surfaces by flat, hexagonal cells, with narrow, recessed walls, but barely discernible apart from on, near anterior pole (Figs 194, 196, 197 & 198). Cell form only marked by aeropyles on anterior polar (Figs 194–198), micropylar cells marked by narrow, recessed cell walls (Fig. 195). Aeropyles elevated, openings large, present only on anterior pole (Figs 194–198). Chorion generally smooth, wrinkled, granulated on anterior pole (Figs 198 & 199).