Casbia farinalis Rosenstock, 1885

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

Casbia farinalis Rosenstock (Figs 561–570)

Oviposition

3♀ code nos.: G125, G291, G408.

Oviposition period: 26 Jan.–1 Nov.

Batch Size: 21.3 ± 4.6 range: 4–50; (n = 12)

Realised fecundity (range): 44–166

Incubation time (days): 11–14

Batch configuration and attachment: Loosely attached, singly, short rows, very small groups (Fig. 561).

Colour: Very pale green (Fig. 561), glistening becoming slightly darker then grey on maturity.

Size (mm): (n=14) L = 0.66 ± 0.01, W = 0.49 ± 0.00, T = 0.42 ± 0.00

Width/length: 0.74

No. of females: 2

Aeropylar opening size (m) (n=6): L = 1.35 ± 0.08, W = 0.89 ± 0.07.

Relative aeropylar opening size: 2.1

Micropyles: Distinct (Figs 562 & 563)

No. of openings: obscure

No. of cells in rosette: 5

No. of rows of cells in micropylar area: 4

Shape: Narrow, elongated, bluntly ovoid, anterior pole truncated; flattened dorsoventrally (Figs 561, 562, 564 & 565).

Characteristics: Chorion soft. Egg distinctly marked on all surfaces by flat, elongated, quadrate cells with narrow, elevated walls arranged in longitudinal rows (Figs 564–566, 568–570); longitudinal and anterior pole cell walls relatively more elevated, frilly (Figs 566 & 567). Aeropyles elevated, openings small (Fig. 568), present on all surfaces apart from top, wide side of egg (Fig. 569). Rosette cells recessed (Fig. 563). Chorion generally shallowly ridged (Fig. 569), smooth on posterior pole (Fig. 570).