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DESCRIPTION OF PREPARATORY STAGES OF ARGYNNIS ALCESTIS, Edw.
Published online by Cambridge University Press: 31 May 2012
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EGG—Conoidal, truncated, not so broad at base as Idalia, the sides less rounded ; depressed at summit; marked vertically by about eighteen prominent, slightly wavy ribs, half of which extend from base to summit and form around the latter a serrated rim; the remainder end irregularly at two thirds to three quarters distance from base, sometimes squarely at one of the striæ, but usually curve towards and unite with the long ribs; between each pair of ribs are equi-distant transverse striæ.
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