Egg.—Pear-shaped, broad at base and rounded, tapering rapidly to a small, slightly depressed, truncated summit; marked by about twenty-four low, vertical, not sharply defined ribs, which extend a little more than half way from the top to base, but vary in individuals; below the ribs to base thickly covered with shallow and irregular (both as to size and shape) indentations, not separated by definite ridges or threads; colour, when laid, pale green. Duration of this stage, nine days.