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Fig. 4 | Zoological Letters

Fig. 4

From: The formation of a hatching line in the serosal cuticle confers multifaceted adaptive functions on the eggshell of a cicada

Fig. 4

The developmental process of hatching-line formation in the serosal cuticle. a Time course of embryonic development and sampling points. b, d, f, i SEM images of the inner surface around the dorsal hatching line at each developmental stage. c, e, g, j Transverse TEM images of the area around the dorsal hatching line. Orange and yellow arrowheads indicate furrow and ridge positions, respectively. h A magnified image of the degrading serosal cuticle at the stage of eyespot formation (blue arrowhead). k A magnified image of pores that appeared in fully developed eggs (red arrowheads). Abbreviations: Ch, chorion; SC, serosal cuticle; PS, periembryonic space; Yo, yolk

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Zoological Letters

ISSN: 2056-306X

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