Hamadryas feronia farinulenta (Fruhstorfer, 1916)

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 feronia farinulenta

( Fig. 8 A, B ). Eggs average 1194± 44 µm long and 1194± 64.89 µm wide (n = 10), as long as wide. Egg is globose foam and quasi-spheroidal, apical area is flat, and convex base is 1.2 times wider than the apex. The smooth and weak base corresponds to 1/10 the length of egg ( Fig. 8 A-i). Chorion shows six or seven knolls with soft edges but reduced and more conspicuous than in H. amphinome mazai ; most arise from the perimicropylar area and only one or two from the apical zone. Knolls may be continuous ( Fig. 8 A-ii, B-ii) or bi/trifurcated ( Fig. 8 A-iii, B-iii); apical ones are most noticeable. Bi/trifurcations and slumps of continuous knolls are between the first sixth and first apical quarter. Background grid exhibits pentagonal, hexagonal, and irregular polygons, with unstressed to rounded edges; polygons are reduced and narrowed in prebasal area where the division between the surface with grid and a smooth base is marked ( Fig. 8 A-iv). In the rest of chorion, polygons are larger than the prebasal ones and maintain a constant size until the beginning of the first apical quarter. They form a pattern of ‘coralligenous arborescent’, like Millepora dichotoma (Milleporidae) ( Fig.8 A-v); the trunk of the ‘tree’ emerges from prebasal area, and ‘ramifications’ penetrate the knolls. This arrangement makes it seem that polygons between knolls are smaller since those that are in the summits are larger (macro-cells). These macro-cells are on the summit of knolls from apical area to end of the first third; sometimes they are also in equatorial region. They are two to three times larger than the rest of polygons, and in some knolls, there are only one or two ( Fig. 8 A-vi, B-vi). Micropylar area is irregular and depressed concerning flat apical surface ( Fig. 8 B-vii); summits of knolls of apical region are most outstanding. Color A 20 M 00 N 00.

Material examined: México: Oaxaca: El Puente, 3 Km al E de Choapam (17°22’38”N, 95°55’20”W), 620 msnm , 22-VI-2015, trampa (ABD-1293); 24-VI-2015, trampa (ABD-1348, ABD-1349); 24-VIII-2015, trampa (ABD-1409, ABD-1415, ABD-1416).

Figures

FIGURE 8. Chorionic structure of Hamadryas feronia farinulenta. A. Egg in side view; B. Apical or distal view: i. Weak base; ii. Continuous knolls; iii. Bifurcated knolls; iv. The reduced grid in the base; v. Semi arborescent grid; vi. Macro-cells; vii. Micropylar area and micropyle.