Phelotis cognata Walker

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

Phelotis cognata Walker (Figs 514–522)

(type species)

Oviposition

3♀ code nos.: G4, G44, G61

Oviposition period: 14 Mar.–23 Apr.

Batch size: 20.8 ± 5.9 range: 8–40 (n = 5)

Realised fecundity (range): 8–85

Incubation time (days): 15

Batch configuration and attachment: Loosely attached, singly (Fig. 514).

Colour: Pale olive green, becoming rusty brown from anterior pole, grey on maturity (Fig. 514).

Size (mm): (n=1) L = 0.51, W = 0.36, T = 0.29

Width/length: 0.70

No. of females: 1

Aeropylar opening size (m) (n = 4): L = 1.34 ± 0.10, W = 0.93 ± 0.10.

Relative aeropylar opening size: 2.6

Micropyles: Distinct (Figs 516 & 517)

No. of openings: obscure

No. of cells in rosette: 7

No. of rows of cells in micropylar area: 3

Shape: Narrow, elongated, bluntly ovoid, anterior pole truncated; flattened dorsoventrally; elongated (Figs 514–516, 518).

Characteristics: Chorion soft. Egg distinctly marked on all surfaces by concave, elongate, quadrate cells with moderately broad, rounded, elevated walls, arranged in longitudinal rows (Figs 514–516, 518–521), anterior cell walls narrowly reticulated (Fig. 517). Aeropyles elevated, openings moderately large (Figs 520 & 521), present only on, around anterior pole (Fig. 520). Rosette cells recessed (Fig. 517). Chorion generally smooth, but sparsely blistered (Figs 519, 520 & 522); ridged on anterior pole cells (Fig. 521).