Hamadryas fornax fornacalia (Fruhstorfer, 1907)

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 : 90

Hamadryas fornax fornacalia

( Fig. 9 A, B ). Eggs average 1069 ± 52.32 μm long and 1053 ± 41.51 μm wide (n = 17), 1.01 times longer than maximum diameter, and width/length ratio is 0.99. It is globose foam, quasi-spheroidal and somewhat sinuous due to its knolls; semi-flat base is 1.8 times wider than the flat apex. Base is rough and weak or flexible, and delimited by disorganized polygons ( Fig. 9 A-i); it corresponds to 1/10 the length of egg. Chorion has 11 knolls with smooth and wide edges, but not very conspicuous concerning chorionic surface; these extend from cusp to prebase. Most are continuous, with slumps toward apical third and near-equatorial region ( Fig. 9 A-ii). Bifurcations arise in first apical third and sometimes in the first basal third ( Fig. 9 A-iii). Polygons of background grid are pentagonal, hexagonal, and irregular, with rounded edges; polygons lengthen and thin when reaching prebasal area, delimiting base of the rest of chorion ( Fig. 9 A-i). Polygons are of a constant size in valleys, where the stain accumulates more ( Fig. 9 A-iv, B-iv); size of polygons increase from valleys to peaks where they are two to four times larger than others ( Fig. 9 A-v). Macro-cells are on the summit of some knolls and are five to six times wider than polygons of other areas ( Fig. 9 A-vi); they are observed mainly in equatorial third. Micropylar zone shows with disorganized polygons; it is depressed regarding apical surface, and perimicropylar knolls do not protrude ( Fig. 9 B-vii). Color A 10 M 00 N 00.

Material examined: México: Veracruz: Ixtaczoquitlán, Corazón de Metlac (18°54’15.69”N, 97°00’43.43”W), 958 msnm, 31-X-2017, A. Arellano y S . Nieves (ABD-2035); 01-XI-2017, A. Arellano y S . Nieves (ABD-2025, ABD-2027).

Figures

FIGURE 9. Structure and details of the chorion of Hamadryas fornax fornacalia. A. Chorion in side view; B. Apical or distal view. i. Reduced grid in the base; ii. Continuous knolls; iii. Bifurcated knolls; iv. Grid between the valleys; v. Grid in the knolls; vi. Macro-cell; vii. Micropylar area.