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 Bradyctena trychnoptila Turner (Figs 128–134) ( type species) Oviposition 1♀ Code no.: G134 Period of oviposition: 20 Feb.–6 Mar. Batch size: 11.3 ± 2.4 (n = 4) Realised fecundity: 45 Incubation time (days): N/A Batch configuration and attachment : Loose Colour : White, becoming pale yellow and then pale orange (Fig. 128). Size (mm): (n=10) L =0.74 ± 0.00, W=0.60 ± 0.01, T=0.47 ± 0.01 Width/length: 0.81 No. of females: 1 Aeropylar opening size (m) (n=7): L=2.1 ± 0.15, W=1.8 ± 0.12 Relative aeropylar opening size: 3.2 Micropyles : Indistinct (Figs 129 & 130) No. of openings: 3 No. of cells in rosette: 7 No. of rows of cells in micropylar area: 4 Shape: Broad, bluntly ovoid, anterior pole wider than posterior, polar profile oblong, dorso­ventrally flattened (Figs 128, 129 & 131). Characteristics : Egg marked all over by hexagonal cells with flat floors, narrow, recessed cell walls (Figs 129–134). Aeropyles slightly elevated, domed, openings moderately large (Figs 132 & 133), present on all surfaces except area in middle of the top of egg (Figs 131–134). Chorion ridged and folded (Figs 132–134). Micropylar area slightly off­centred (Fig. 129).