Descriptions of the eggs of some southern Australian Geometridae (Lepidoptera) Author Young, Catherine J. text Zootaxa 2006 2006-08-14 1287 1 294 journal article 1175­5334 7778314F-E23A-4947-876A-9610E4C959A7 Didymoctenia exsuperata Walker (Figs 488–492) ( type species) Oviposition 2♀ code nos.: G193, G202 Oviposition period: 19–28 Apr. Batch range: 10–50; (n = 2) Realised fecundity: 10–50 Incubation time (days): 28 Batch configuration and attachment : Loosely attached, singly. Colour: Bluish­green, greyish brown on maturity. Size (mm): (n=5) L=0.73 ± 0.01, W=0.49 ± 0.01, T=0.38 ± 0.01 Width/length: 0.67 No. of females: 1 Aeropylar opening size (m) (n=1): L=2.72, W=1.35 Relative aeropylar opening size: 3.5 Micropyles : Distinct (Figs 488 & 489) No. of openings: 6 No. of cells in rosette: 8 No. of rows of cells in micropylar area: 3 Shape: Very narrow, elongated, bluntly ovoid; anterior pole truncated; flattened dorso­ventrally; elongated (Figs 488 & 490). Characteristics : Chorion soft. Egg distinctly marked on all surfaces by concave polygonal cells with broad, rounded, wavy walls arranged in longitudinal rows (Figs 488 & 490–492), cell walls in micropylar area narrow (Fig. 489). Aeropyles inconspicuous, openings moderately large slightly elevated, domed (Fig. 488); present on all surfaces apart from middle of top of egg (Figs 490 & 492). Rosette cells in micropylar area recessed (Fig. 489). Chorion blistered, appearing granulated, ridged on and near anterior pole (Fig. 492).