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DESCRIPTION OF THE PREPARATORY STAGES OF COLIAS CAESONIA, Stoll
Published online by Cambridge University Press: 31 May 2012
Extract
Egg.—Fusiform thick in middle, tapering to a small rounded summit; marked by about 18 longitudianl ribs, these being low, narrow, the spaces between flat and crossed by many fine ridges. Color yellow-green. Duration of this stage about four days.
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