Hypanartia lethe
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 lethe

description: Hypanartia lethe (Plates 8, 9) (n=39).
The chorion is 740 µm long and 684 µm wide; its length/width ratio is 1.08 and its width/length ratio is 0.93; the greatest width is found at the equatorial third and is maintained until just before the base, which is approximately 2.5 times wider than the apical portion (Plate 8, Fig. A). The egg has a hemispherical shape with convex base and apex (Plates 8, 9, Figs. A). It exhibits ten ridges made up of colonnades with beams, distributed from the edge of the perimicropylar region to the base (Plate 8, Fig. A-i, Plate 9, Fig. A); the most apical columns are more projected, longer, and conspicuous (Plate 8, Fig. A-ii, B-ii). Between 25 and 26 columns per ridge are recorded, all with marked plinths slightly off the rail, giving the appearance of ribs in some parts of the chorion (Plate 9, Fig. A). The capitals of the columns are joined by a beam, which is slightly depressed at the aeropyles (Plate 9, Fig. B); 29 to 33 aeropyles are present along the ridge (Plate 9, Fig. A). At the intercolumn, there is a thin, translucent, smooth, and fragile intercolumnar wall (Plate 8, Fig. A-iii, Plate 9, Fig. B). From the equatorial third, the columns are shortened, thickened, and fused to the chorion (Plates 8, 9, Figs.A), so that the beam is observable only from the prebasal zone (Plates 9, Figs. A, C); five to six ribs are present between the ridges in this region (Plate 8, Fig. A-iv, Plate 9, Figs. A, C). Starting from this zone, an incipient rough texture can be observed that is maintained up to the base (Plate 9, Fig. C). In apical view, vestigial “ribs” that coincide with the projections of the plinths can be seen more clearly (Plate 8, Fig. B-v, Plate 9, Fig. D), which extend to the base of the ridges in the smooth transition zone (see Plate 9, Fig. D). The aeropyles nearest the transition zone ―at the highest and most visible part of the ridges―present a wider opening than the rest of them (Plate 9, Fig. D). The perimicropylar region exhibits an irregular wreath of 11 leaves of irregular polygons from four to six sides, all of them in a well-defined semi-ring; also, there are five additional leaves whose edges are not complete and/or are visible only as relief, without forming a ring (Plate 9, Fig. E). The micropylar rosette has seven pentagonal or hexagonal straight-sided petals joined to the polygon and with pointed vertices well-anchored to the central polygon; no texture is discernible within the petals and leaves, as well as at the transition zone (Plate 9, Figs. D-F). Two micropylar openings are observed in the central polygon, which is irregular and at the same visual level as the petals (Plate 9, Fig. F). The outer walls of the petals are slightly thicker than the side walls. Color N 00 A 30 M 00.
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 167, DOI: 10.11646/zootaxa.5330.2.1, http://zenodo.org/record/8253638