Wednesday, November 9, 2011
The Small Ant-heap White.
There are a few introduced exotic plants at Cumberland. One of these is Achillea millefolium, (the Yarrow, Milfoil or Duisendblaar.) On a hot midsummer day a plethora of this butterfly could be found nectaring on these flowers. The top two photographs are of a female, with its mostly yellow background, (and a round bottom). Below is a male with mostly a white background. The sp. is distiguished from others of the genus by a yellow or orange streak along the hind wing costa.
The genus was established by Talbot as recently as 1932, using Pieris Charina as the TS.
See also D. Charina.