Clouded Sulphur Butterfly

This is a picture of a Clouded Sulphur Butterfly. The butterfly is light green/yellow in color. It has 2 dots on its wings to scare enemies. Below are some close up images of this particular Clouded Sulphur Butterfly. Zoomed out view of the wing. Zoomed in view of the wing.Notice the silk like appearance of the outer extremities of the wing!

Some scientific information:
Clouded Sulphur Butterfly - Colias philodice
Superfamily: Papilionoidea / Family: Pieridae - Whites and Sulphurs / Subfamily: Coliadinae - Sulphurs