Edessa meditabunda

(Figs. 11–16; Tab. 2)

Eggs esferoidal; light green; operculum ellipsoidal and convex; chorion translucent and bright. With the development of the embryo, two small red stains become visible under the translucent operculum, close to the border and opposed to each other, corresponding to the eyes of the future nymphs, along with the dark brown ruptor ovis (Rizzo 1971, 1976). A series of tiny light spots in the fusion of the operculum and the rest of the chorion described by Rizzo (1971, 1976) corresponds to the translucent aero-micropylar processes, which are very small in this species. When observed in light stereomicroscope, the chorion shows a nearly smooth surface, in spite of its description by Rizzo (1971, 1976) as alveolate.

Chorion surface, in SEM, is clearly granulated (Fig. 11), devoid of depressions, showing only polymorphic granules: larger and more spaced or smaller and more densely distributed (Figs. 12, 13). Operculum less delimited; the eclosion line represented by a flatter and depressed area, inward the aero-micropylar processes (Figs. 11, 14). Aero-micropylar processes circularly arranged near rim of the egg, slightly developed in small tubercles (Figs. 14, 15) or stalked projections, gradually expanded toward apex (Fig. 16).