Furcatrox australis Rosenstock

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

Furcatrox australis Rosenstock (Figs 442–447)

(type species)

Oviposition

1♀ Code no.: G155

Date of oviposition: 22 Feb.

Batch size: 30; (n = 1)

Realised fecundity: 30

Incubation time (days): N/A

Batch configuration and attachment: Loose.

Colour: Pale yellow, becoming light orange with orange spots (Fig. 442).

Size (mm): (n=10) L=0.62 ± 0.00, W=0.54 ± 0.00, T=0.50 ± 0.00

Width/length: 0.88

No. of females: 1

Aeropylar opening size (m) (n=7): L=2.3 ± 0.11, W=2.0 ± 0.08

Relative aeropylar opening size: 4.0

Micropyles: Distinct (Figs 443 & 444)

No. of openings: 6

No. of cells in rosette: 12

No. of rows of cells in micropylar area: 3

Shape: Broad, bluntly ovoid, anterior pole truncated, much wider than posterior pole,

polar profile sub­circular, posterior pole sub­acute; dorso­ventrally flattened, wedgeshaped in profile (Figs 442, 443 & 445).

Characteristics: Egg marked on anterior pole only with hexagonal cells outlined by aeropyles at cell junctions only (Figs 443, 445 & 446). Micropylar cell walls narrow, cells recessed (Figs. 444). Aeropyles elevated, domed, openings moderately large, present only on anterior pole (Figs 443, 444 & 446). Chorion smooth, undulating (Figs 446 & 447), except chorion of rosette cells, rough, wrinkled (Fig. 444).