Hypanartia bella
Creators: name: Llorente-Bousquets, Jorge
name: Nieves-Uribe, Sandra
name: Flores-Gallardo, Adrián
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Lepidoptera
Nymphalidae
Hypanartia
Hypanartia bella

description: Hypanartia bella (Plates 6, 7) (n=20).
The chorion of 717 µm in length and 708 µm in width; the length/width ratio is 1.01 and width/length ratio is 0.99; the greatest amplitude is at the equator (Plates 6, 7, Figs. A). The egg has a hemispherical shape with a convex base that is 2.2 times wider than the semi-flattened apex (Plates 6, 7, Figs. A). It features ten to twelve ridges composed of colonnades with beams (Plate 6, Fig. A-i, Plate 7, Fig. A). Most of these ridges run from the edge of the perimicropylar region to the base, although some do not reach the apical third of the chorion (Plate 6, Fig. A-ii). The columns in the apical third are the longest and most conspicuous, projecting farther than the rest (Plate 6, Fig. A, B-iii, Plate 7, Fig. A). The capitals of the columns are joined by a beam that is slightly depressed at the intercostal spaces (Plate 7, Fig. B) and slightly raised in the aeropyles, about 25–28 per ridge. Between each column there is a space with a thin, translucent, smooth, and fragile intercolumnar wall (Plate 6, Fig. A, B-iv, Plate 7, Fig. B). It is so delicate that it could not support the apical part of the ridges, maybe causing them to become bent (Plate 6, Fig. B-v). There are between 23 and 26 columns per ridge; the most apical plinths are the only ones that stand slightly outside the rail, without being marked as ribs in the spaces between the ridges (Plates 6, 7, Figs. A). The columns are shortened, thickened, and fused to the chorion from the equator (Plates 6, 7, Fig. A), but the shafts remain conspicuous at the prebasal zone (Plate 6, Fig. A-vi, Plate 7, Figs A, C). The ribs are present only at the poles; two or three in the apical region that join the upper columns together (Plate 6, Fig. A-vii, Plate 7, Figs. B, D), and five to seven at the prebasal zone (Plate 6, Fig. A-viii, Plate 7, Figs. A, C), that latter of which exhibit a rough texture that extends to the base (Plate 9, Fig. C). In apical view, the vestigial ‘ribs’ can be seen more clearly, coinciding with the projections of the plinths (Plate 6, Fig. B-ix, Plate 7, Fig. D), and the projections of the ridges are visible towards the transition zone. The perimicropylar region has an irregular wreath of 23 leaves with four to six sides in two semi-rings. The leaves closest to the rosette have curved vertices, while those closest to the transition zone have sharp vertices, some of them with projections on these parts (Plate 7, Fig. E). The micropylar rosette has eight very irregular pentagonal or hexagonal petals, with curved to slightly sharp vertices; they are weakly anchored to the central polygon, which has an irregular shape with two visible micropylar openings (Plate 7, Fig. F). Color N 00 A 40 M 50.
description: Published as part of Llorente-Bousquets, Jorge, Nieves-Uribe, Sandra & Flores-Gallardo, Adrián, 2023, Exochorion in the tribe Nymphalini (Lepidoptera: Nymphalidae): the genus Hypanartia Hübner, [1821] and comparison with related genera, pp. 151-200 in Zootaxa 5330 (2) on page 164, DOI: 10.11646/zootaxa.5330.2.1, http://zenodo.org/record/8253638