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 Monoctenia falernaria Guenée (Figs 637–644) ( type species) Oviposition 1♀ code nos.: G366. Oviposition period: May Batch size: 30; (n = 1) Realised fecundity: 30 Incubation time (days): 25 Note : McFarland (1973) reported an incubation period of 14 days. Batch configuration and attachment : Attached, singly, small groups (Fig. 637). Colour: Pale milky brown, pearly, then transparent on maturity (Fig. 637). Size (mm): (n=10) L = 1.83 ± 0.01, W = 1.34 ± 0.01, T = 1.03 ± 0.02 Note : McFarland (1973 , 1988 ) noted extreme variation in size and shape of the eggs from this species in eggs from the same clutch and in eggs from different females. Width/length: 0.73 No. of females: 1 Aeropylar opening size (m) (n=6): L = 1.16 ± 0.04, W = 0.94 ± 0.04 Relative aeropylar opening size: 0.7 Micropyles : Distinct (Figs 638 & 639) No. of openings: 1 No. of cells in rosette: 10 No. of rows of cells in micropylar area: 3 Shape: Moderately narrow, elliptical, sub­cuboidal, dorso­ventrally flattened (Figs 637, 638, 640 & 641). Characteristics : Egg marked on all surfaces by round, concave cells with broad walls on wide lateral side (Figs 638, 640 & 641), cells deeper on wider lateral side (Fig. 642); on narrow lateral sides and anterior pole walls narrower, recessed, cells flat (Figs 638 & 641). Aeropyles inconspicuous, openings extremely small (Fig. 643), present only on narrow lateral sides. Micropylar cells slightly recessed (Fig. 639). Micropyles slightly off­centred (Fig. 638). Chorion undulating, moderately wrinkled (Figs 643 & 644).