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DESCRIPTION OF THE PREPARATORY STAGES OF GPAPTA COMMA, Harris
Published online by Cambridge University Press: 31 May 2012
Extract
Egg.—Conoidal, the base flattened and rounded; marked by 10 vertical ribs which near the base are low, but on upper third are considerably elevated, inclease gradually in prominence and terminate abruptly around a small flat space at summit; these ribs are thin and their sides are cut by grooves perpendicular to the surface of the egg; the spaces between them crossed by many fine striæ; color green. Duration of this stage 5 days in April, 4 in July.
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