Hamadryas amphichloe ferox (Staudinger, 1886)

Nieves-Uribe, Sandra, Flores-Gallardo, Adrián, Llorente-Bousquets, Jorge, Luis-Martínez, Armando & Pozo, Carmen, 2019, Use of exochorion characters for the systematics of Hamadryas Hübner and Ectima Doubleday (Nymphalidae: Biblidinae: Ageroniini), Zootaxa 4619 (1), pp. 77-108 : 84-85

Hamadryas amphichloe ferox

( Fig. 5 A, B ). Eggs average 961± 23.48 µm long and 979± 22.71 µm wide (n = 12), 0.98 times longer than maximum diameter, and width/length ratio is 1.02. Egg is globose foam, quasi-spheroidal and somewhat sinuous due to its knolls; convex base is 1.4 times wider than the lightly convex apex. Base is smooth, although it absorbs more stain than H. februa ferentina ; in prebasal zone there are soft polygons smaller than those in the rest of the chorion ( Fig. 5 A-i). Base is almost 1/8 the length of egg. The chorion shows five to six knolls from the perimicropylar to the prebasal area, with irregular edges less interrupted than those of H. februa ferentina ( Fig. 5 A-iii, 5 B-ii) ( Nieves-Uribe et al. 2015, Pl. 7, Fig. B); most of them bifurcate, either from the apical third or near equator ( Fig. 5 A-iv); all have slumps located from apical region to basal 1/3 ( Fig. 5 A-v). Background grid displays pentagonal, hexagonal, and irregular polygons, with aristate and rounded edges. Polygons on the slopes of the knolls increase in size as they approach their summits – twice the size of those not in them—so they are unnoticed ( Fig. 5 A-vi). Polygons appear to have a constant size over the entire surface while the cells in the knolls are arranged in such a way that the knolls appear thin ( Fig. 5 A , B-vii). Macro-cells are only on some summits of knolls of the apical region and are two to three times larger than other polygons ( Fig. 5 B-viii). Between the knolls, polygons form a pattern of eight to 11 ‘ribs’ ( Fig. 5 A , B-ix), which also form triangles in bifurcation regions ( Fig. 5 A-ix); these ‘ribs’ extend from the apex to prebasal zone, the presumed ‘ribs’ are like those of H. g. glauconome ( Nieves-Uribe et al. 2016d, Fig. 6 ), are almost imperceptible in lateral view and conspicuous in an apical view. The micropylar zone is depressed, and the apical region is flattened ( Fig. 5 B-x), although it is not noticeable due to the conspicuous knolls in this region. Color A 10 M 00 N 00.

Material examined: Colombia: Huila: Yaguará, Betania , Santa Helena (02°24’50.04”N, 75°43’24.06”W), 846 msnm, 23-XII-2015, J. Llorente (ABD-1892, ABD-1898) .

Figures

FIGURE 5. Structure and details of the chorion of Hamadryas amphichloe ferox. A. Egg in side view; B. Apical or distal view: i. The reduced grid in the prebasal zone; ii. Knolls in the perimicropylar area; iii. Irregular knolls; iv. Bifurcated knolls; v. ‘Basal’ slumps; vi. Grid on the summit of the knoll; vii. ‘Fine’ appearance of the knolls; viii. Macro-cell; ix. ‘Ribs’ between the knolls; x. Micropylar area with micropyle in the center.

FIGURE 6. Structure and details of the chorion of Hamadryas julitta. A. Egg in side view; B. Apical view: i. Knoll with beginning in the apical region; ii. Semi-jagged knolls; iii. Bifurcated knolls; iv. Slumps in continuous knolls; v. Grid on the summits of the knolls; vi. ‘Fine’ appearance of the knolls; vii. Macro-cell; viii. ‘Ribs’ between the knolls; ix. Micropylar area with micropyle in the center.